@import "https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@500;600;700&family=IBM+Plex+Sans:ital,wght@0,400;0,500;0,600;0,700;0,800;1,400&display=swap";@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2)format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff)format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2)format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff)format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2)format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff)format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2)format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff)format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2)format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff)format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2)format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff)format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2)format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff)format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2)format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff)format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2)format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff)format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2)format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff)format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2)format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff)format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2)format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff)format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2)format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff)format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2)format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff)format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2)format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff)format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2)format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff)format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2)format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff)format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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)format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff)format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2)format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff)format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2)format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff)format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf)format("truetype")}:root{--color-canvas:#fbfbfa;--color-surface:#fff;--color-surface-alt:#f5f4ef;--color-ink:#201f1c;--color-muted:#6c6a64;--color-line:#1413101a;--color-line-soft:#14131012;--color-primary:#2f7d6b;--color-primary-dark:#1f5f51;--color-primary-soft:#e0f0eb;--color-blue:#155da3;--color-blue-soft:#e6f1fb;--color-amber:#8a5210;--color-amber-soft:#faeeda;--color-danger:#c2562b;--color-danger-soft:#f7e5dc;--color-sidebar:#0e1d1b;--color-sidebar-2:#162f2b;--bg-dark:var(--color-canvas);--bg-panel:var(--color-surface);--bg-lighter:var(--color-surface-alt);--bg-hover:#e2ebe7;--text-main:var(--color-ink);--text-muted:var(--color-muted);--exam-primary:var(--color-primary);--exam-primary-hover:var(--color-primary-dark);--accent-green:var(--color-primary);--accent-red:var(--color-danger);--border-color:var(--color-line);--radius:14px;--radius-sm:12px;--radius-lg:20px;--sidebar-width:256px;--content-max:1100px;--shadow-card:0 1px 2px #1413100a, 0 6px 20px #1413100a;--shadow-raised:0 1px 2px #1413100d, 0 12px 30px #1413100f}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background-color:var(--color-canvas);color:var(--text-main);letter-spacing:-.005em;-webkit-font-smoothing:antialiased;font-family:IBM Plex Sans,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:15px;line-height:1.65}a{color:inherit;text-decoration:none}button,input,select,textarea{font-family:inherit;font-size:inherit}.app-container{min-height:100vh;display:flex}.sidebar{width:var(--sidebar-width);min-width:var(--sidebar-width);background:linear-gradient(180deg, var(--color-sidebar) 0%, #0b1918 100%);scrollbar-width:thin;scrollbar-color:#a7f3d01f transparent;border-right:1px solid #d7e1dd1a;flex-direction:column;height:100vh;display:flex;position:sticky;top:0;overflow:hidden auto}.sidebar-inner{flex-direction:column;flex:1;gap:0;padding:1.25rem 1rem;display:flex}.sidebar-title{color:#a7f3d0;text-transform:uppercase;letter-spacing:.13em;border-bottom:1px solid #d7e1dd1a;align-items:center;gap:.65rem;margin-bottom:.75rem;padding:.25rem .5rem 1rem;font-size:.78rem;font-weight:800;display:flex}.sidebar-brand-mark{border-radius:.48rem;flex:none;width:1.65rem;height:1.65rem;box-shadow:0 0 0 1px #a7f3d02e,0 8px 22px #00000038}.sidebar-account{border-radius:var(--radius-sm);background-color:#ffffff0a;border:1px solid #d7e1dd1a;justify-content:space-between;align-items:center;gap:.75rem;margin-bottom:1rem;padding:.75rem;display:flex}.sidebar-plan{text-transform:uppercase;letter-spacing:.1em;color:#a7f3d0;font-size:.72rem;font-weight:700;line-height:1}.sidebar-email{color:#bfd1cbb3;white-space:nowrap;text-overflow:ellipsis;max-width:140px;margin-top:.2rem;font-size:.8rem;overflow:hidden}.icon-btn{border-radius:var(--radius-sm);color:#bfd1cbb3;cursor:pointer;background-color:#0000;border:1px solid #d7e1dd26;flex-shrink:0;justify-content:center;align-items:center;width:30px;height:30px;transition:color .15s,background-color .15s;display:inline-flex}.icon-btn:hover{color:#fff;background-color:#ffffff0f}.sidebar-nav{flex-direction:column;flex:1;gap:.25rem;display:flex}.sidebar-section-label{color:#7fa59ebf;text-transform:uppercase;letter-spacing:.12em;padding:.9rem .5rem .35rem;font-size:.68rem;font-weight:700}.nav-item{border-radius:var(--radius-sm);color:#bfd1cbd9;cursor:pointer;border:1px solid #0000;align-items:center;gap:.55rem;padding:.55rem .75rem;font-size:.875rem;font-weight:500;line-height:1.3;text-decoration:none;transition:background-color .15s,color .15s;display:flex}.nav-item:hover{color:#fff;background-color:#ffffff0e}.nav-item.active{color:#a7f3d0;background-color:#0f766e33;border-color:#a7f3d033}.nav-item svg{opacity:.75;flex-shrink:0}.nav-item.active svg,.nav-item:hover svg{opacity:1}.book-header{cursor:pointer;color:#e6efece6;border-radius:var(--radius-sm);border:1px solid #0000;justify-content:space-between;align-items:center;padding:.55rem .75rem;font-size:.875rem;font-weight:600;transition:background-color .15s;display:flex}.book-header:hover{background-color:#ffffff0e}.chapter-nav-list{border-left:1px solid #d7e1dd1a;flex-direction:column;gap:.1rem;margin-top:.15rem;margin-left:1rem;padding-left:1rem;display:flex}.sidebar-book-badge{text-transform:uppercase;letter-spacing:.04em;border-radius:999px;align-items:center;padding:.1rem .4rem;font-size:.65rem;font-weight:700;display:inline-flex}.free-badge{color:#a7f3d0;background-color:#0f766e40;border:1px solid #a7f3d033}.locked-badge{color:#d8b66f;background-color:#b7791f29;border:1px solid #d8b66f33}.sidebar-upgrade-strip{border-top:1px solid #d7e1dd1a;margin-top:auto;padding-top:1rem}.sidebar-upgrade-btn{border-radius:var(--radius-sm);color:#a7f3d0;cursor:pointer;background:linear-gradient(135deg,#0f766e59,#0b4f4a73);border:1px solid #a7f3d038;justify-content:center;align-items:center;gap:.5rem;width:100%;padding:.7rem 1rem;font-size:.82rem;font-weight:700;text-decoration:none;transition:background .2s;display:flex}.sidebar-upgrade-btn:hover{background:linear-gradient(135deg,#0f766e7a,#0b4f4a99)}.main-content{flex:1;width:0;min-width:0;padding:clamp(1.25rem,3vw,2rem) clamp(1.5rem,4vw,2.75rem);overflow-x:hidden}.page-stack{flex-direction:column;gap:1.25rem;display:flex}.page-header{margin-bottom:.25rem}.page-header h1{letter-spacing:-.025em;font-size:1.75rem;font-weight:800;line-height:1.2}.eyebrow{color:var(--exam-primary);letter-spacing:.14em;text-transform:uppercase;margin-bottom:.45rem;font-size:.69rem;font-weight:600;display:block}.muted-copy{color:var(--text-muted);line-height:1.6}.hero-panel{border-radius:var(--radius-lg);border:1px solid var(--color-line-soft);background:var(--color-surface);box-shadow:var(--shadow-card);justify-content:space-between;align-items:flex-start;gap:1.5rem;padding:1.85rem 2rem;display:flex}.hero-panel>div:first-child{flex:auto;min-width:0}.hero-panel h1{letter-spacing:-.02em;margin-bottom:.35rem;font-size:1.65rem;font-weight:650;line-height:1.2}.hero-panel p{color:var(--text-muted);max-width:68ch}.metric-pill-row{flex-wrap:wrap;flex-shrink:0;align-items:stretch;gap:.6rem;display:flex}.metric-pill{border-radius:var(--radius-sm);background-color:var(--color-canvas);border:1px solid var(--color-line);flex-direction:column;gap:.2rem;min-width:108px;padding:1rem 1.1rem;display:flex}.metric-pill strong{color:var(--color-ink);font-family:IBM Plex Mono,monospace;font-size:1.75rem;font-weight:700;line-height:1;display:block}.metric-pill span{color:var(--text-muted);text-transform:uppercase;letter-spacing:.07em;font-size:.7rem;font-weight:600}.metric-pill.streak{background:#fbbf2414;border-color:#d977064d}.metric-pill.streak strong{color:#b45309}.metric-pill.due-alert{background:#b423180d;border-color:#b4231840}.metric-pill.due-alert strong{color:var(--color-danger)}.metric-pill.goal-earned{background:linear-gradient(135deg,#fbbf241f,#f59e0b0f);border-color:#d9770659;position:relative;overflow:hidden}.metric-pill.goal-earned:after{content:"";background:linear-gradient(120deg,#0000 30%,#fbbf241f 50%,#0000 70%);animation:2.8s ease-in-out infinite goal-shimmer;position:absolute;inset:0}.metric-pill.goal-earned strong{color:#92400e;z-index:1;font-size:1.5rem;position:relative}.metric-pill.goal-earned span{z-index:1;color:#b45309;position:relative}.metric-pill.goal-open{background:var(--color-canvas);border-color:var(--color-line)}.metric-pill.goal-open strong{color:var(--text-muted);font-size:1.75rem}.metric-pill.goal-open span{color:var(--text-muted)}@keyframes goal-shimmer{0%,to{transform:translate(-100%)}50%{transform:translate(100%)}}.question-card{background-color:var(--bg-panel);border-radius:var(--radius);border:1px solid var(--color-line-soft);box-shadow:var(--shadow-card);padding:1.75rem}.question-card h2{margin-bottom:.65rem;font-size:1.05rem;font-weight:650}.stat-card{border-radius:var(--radius);border:1px solid var(--color-line-soft);background-color:var(--bg-panel);box-shadow:var(--shadow-card);flex-direction:column;gap:.3rem;padding:1.25rem;display:flex}.stat-card strong{color:var(--color-ink);font-family:IBM Plex Mono,monospace;font-size:1.85rem;font-weight:600;line-height:1}.stat-card small{color:var(--text-muted);font-size:.82rem}.stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.1em;margin-bottom:.1rem;font-size:.7rem;font-weight:700}.dashboard-link-card{border-radius:var(--radius);border:1px solid var(--border-color);background-color:var(--bg-panel);box-shadow:var(--shadow-card);color:var(--color-ink);padding:1.25rem 1.4rem;text-decoration:none;transition:border-color .18s,box-shadow .18s,transform .18s;display:block}.dashboard-link-card:hover{box-shadow:var(--shadow-raised);border-color:#0f766e66;transform:translateY(-1px)}.dashboard-link-card h3{color:var(--color-ink);margin-bottom:.35rem;font-size:.95rem;font-weight:700}.dashboard-link-card p{color:var(--text-muted);font-size:.875rem;line-height:1.5}.mission-card{background:linear-gradient(135deg, #0f766e1f, #f7c16f29), var(--bg-panel);border-color:#0f766e33;justify-content:space-between;align-items:center;gap:1.5rem;display:flex}.mission-card h2{margin:.25rem 0 .4rem}.dashboard-coach-card{border-radius:var(--radius);background:radial-gradient(circle at top left, #0f766e21, transparent 36%), linear-gradient(135deg, #fffbebbd, #f0fdf4b8), var(--bg-panel);box-shadow:var(--shadow-card);border:1px solid #0f766e2e;grid-template-columns:minmax(0,1.5fr) minmax(280px,.8fr);gap:1.2rem;padding:1.25rem;display:grid}.dashboard-coach-card.coach-focus{background:radial-gradient(circle at top left, #b423181a, transparent 34%), linear-gradient(135deg, #fef2f2eb, #fffbebbf), var(--bg-panel);border-color:#b4231833}.dashboard-coach-card.coach-strong{background:radial-gradient(circle at top left, #0f766e29, transparent 34%), linear-gradient(135deg, #f0fdf4f2, #ecfdf5bf), var(--bg-panel);border-color:#0f766e47}.dashboard-coach-main{gap:.9rem;min-width:0;display:flex}.dashboard-coach-icon{background-color:var(--color-primary-soft);width:2.75rem;height:2.75rem;color:var(--color-primary-dark);border-radius:999px;flex:none;place-items:center;display:grid}.dashboard-coach-main h2{margin:.25rem 0 .35rem}.dashboard-coach-main p{color:var(--color-ink);margin:0;line-height:1.55}.dashboard-coach-detail{font-size:.9rem;color:var(--text-muted)!important;margin-top:.6rem!important}.dashboard-next-actions{border-radius:var(--radius-sm);background-color:#ffffff9e;border:1px solid #0f766e1f;align-content:start;gap:.55rem;padding:.85rem;display:grid}.dashboard-action-item{color:var(--color-ink);align-items:flex-start;gap:.45rem;font-size:.88rem;line-height:1.45;display:flex}.dashboard-action-item svg{color:var(--color-primary);flex:none;margin-top:.1rem}.dashboard-share-card{border-radius:var(--radius);box-shadow:var(--shadow-card);background:radial-gradient(circle at 8% 18%,#1d4ed81f,#0000 30%),linear-gradient(135deg,#fffffff5,#edf4f1e0);border:1px solid #1d4ed824;justify-content:space-between;align-items:center;gap:1rem;padding:1.05rem 1.2rem;display:flex}.dashboard-share-copy{gap:.35rem;min-width:0;display:grid}.dashboard-share-copy h2{margin:0;font-size:1.08rem;line-height:1.2}.dashboard-share-copy p{color:var(--text-muted);margin:0;font-size:.9rem;line-height:1.45}.dashboard-share-preview{flex-wrap:wrap;align-items:center;gap:.55rem;margin-top:.2rem;display:flex}.dashboard-share-preview strong,.dashboard-share-preview span{color:var(--color-primary-dark);background:#ffffffb8;border:1px solid #0f766e24;border-radius:999px;padding:.28rem .55rem;font-family:IBM Plex Mono,monospace;font-size:.75rem;font-weight:700}.dashboard-share-preview span{color:var(--text-muted);font-weight:600}.dashboard-share-button{white-space:nowrap;flex:none;gap:.4rem}.dashboard-section-heading{justify-content:space-between;align-items:flex-start;gap:.75rem;display:flex}.dashboard-section-heading h2{letter-spacing:-.01em;margin:14px 0 6px;font-size:21px;font-weight:500;line-height:1.3}.dashboard-section-copy{max-width:46ch;margin:0 0 22px;font-size:14px;line-height:1.55}.dashboard-empty-state{border-radius:var(--radius-sm);border:1px dashed #5f6f6a47;margin-top:.9rem;padding:.9rem}.dashboard-topic-list,.dashboard-mistake-list{gap:14px;max-height:500px;margin-top:0;padding-right:0;display:grid;overflow-y:auto}.dashboard-topic-row,.dashboard-mistake-row{border:1px solid var(--color-line);border-radius:var(--radius);background-color:var(--color-surface);box-shadow:none;justify-content:space-between;align-items:flex-start;gap:22px;padding:18px 24px;display:flex;overflow:visible}.dashboard-topic-main,.dashboard-mistake-main{overflow-wrap:normal;flex:auto;min-width:0}.dashboard-topic-heading{min-width:0;display:block}.dashboard-topic-meta{color:var(--color-blue);letter-spacing:.01em;white-space:nowrap;margin-bottom:9px;font-size:12.5px;font-weight:500;line-height:1;display:inline-block}.dashboard-topic-title,.dashboard-mistake-title{color:var(--color-ink);min-width:0;font-size:16px;font-weight:500;line-height:1.35;display:block}.dashboard-topic-sub,.dashboard-mistake-copy{margin-top:8px;font-size:13px;line-height:1.55}.dashboard-notes-link{color:var(--text-muted);text-underline-offset:.16rem;white-space:nowrap;margin-left:.5rem;font-size:.8rem;text-decoration:underline}.dashboard-topic-actions{text-align:right;flex-direction:column;flex:none;align-items:flex-end;gap:9px;display:flex}.dashboard-topic-score{justify-content:center;min-width:auto;padding:3px 11px;font-size:13px;font-weight:500}.dashboard-topic-coach{overflow-wrap:normal;text-align:center;white-space:nowrap;max-width:none;padding:4px 12px;font-size:12px;font-weight:500;line-height:1.2}.dashboard-topic-row.topic-not-started{background:linear-gradient(135deg,#f8fafce6,#f0fdf45c)}.dashboard-mistake-row{align-items:stretch;gap:20px;padding:18px 22px;position:relative}.dashboard-mistake-row:before{background:var(--color-amber);content:"";border-radius:999px;flex:0 0 4px;align-self:stretch}.dashboard-mistake-row:first-child:before{background:#c2562b}.dashboard-mistake-row:nth-child(2):before{background:#d2911f}.dashboard-mistake-row:nth-child(3):before{background:#6f9f2a}.dashboard-mistake-row:nth-child(4):before{background:#1d9e75}.dashboard-mistake-title{margin:0 0 5px}.dashboard-mistake-copy{margin:0;font-size:13.5px}.dashboard-mistake-count{background:var(--color-amber-soft);color:var(--color-amber);text-align:center;white-space:nowrap;border-radius:12px;flex-direction:column;flex:none;justify-content:center;align-self:center;align-items:center;min-width:62px;padding:9px 12px;line-height:1.15;display:flex}.dashboard-mistake-count strong{font-size:17px;font-weight:500}.dashboard-mistake-count span{font-size:11.5px}.dashboard-analysis-grid>.question-card{border-color:var(--color-line-soft);border-radius:var(--radius-lg);padding:30px 30px 32px}.dashboard-gap-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:.75rem;margin-top:1rem;display:grid}.dashboard-gap-card{border:1px solid var(--color-line);border-radius:var(--radius-sm);background-color:var(--color-surface-alt);justify-content:space-between;align-items:center;gap:.75rem;padding:.8rem .9rem;display:flex}.dashboard-gap-card div{gap:.2rem;min-width:0;display:grid}.dashboard-gap-card strong{color:var(--color-ink);font-size:.92rem}.dashboard-gap-card span{color:var(--text-muted);font-size:.82rem}.study-hub{flex-direction:column;gap:1.1rem;max-width:900px;display:flex}.sh-bar-track{background:var(--color-line);border-radius:99px;width:100%;overflow:hidden}.sh-bar-fill{border-radius:99px;transition:width .55s}.sh-habit-bar{flex-wrap:wrap;align-items:center;gap:.6rem;display:flex}.sh-streak-chip{background:var(--color-surface);border:1px solid var(--color-line);border-radius:8px;align-items:center;gap:.4rem;padding:.42rem .85rem;font-size:.82rem;display:flex}.sh-streak-chip.active{background:#fbbf2414;border-color:#fbbf2459}.sh-streak-icon{font-size:1rem;line-height:1}.sh-streak-chip strong{color:#d97706;font-size:1.05rem;font-weight:800}.sh-streak-chip span{color:var(--text-muted);font-size:.78rem}.sh-habit-divider{background:var(--color-line);flex-shrink:0;width:1px;height:22px}.sh-metric-chip{background:var(--color-surface);border:1px solid var(--color-line);border-radius:8px;align-items:center;gap:.35rem;padding:.42rem .7rem;font-size:.8rem;display:flex}.sh-metric-chip strong{color:var(--color-ink);font-size:.95rem;font-weight:700}.sh-metric-chip span{color:var(--text-muted)}.sh-metric-chip.due{background:#b423180d;border-color:#b4231838}.sh-metric-chip.due strong{color:var(--color-danger)}.sh-metric-chip.ok{background:#0f766e0f;border-color:#0f766e33}.sh-metric-chip.ok strong{color:var(--color-primary)}.sh-mission-card{background:var(--color-surface);border:1px solid var(--color-line);border-radius:12px;align-items:flex-start;gap:1.5rem;padding:1.4rem 1.5rem 1.4rem 2rem;display:flex;position:relative;overflow:hidden}.sh-mission-card.priority{background:#b4231808;border-color:#b4231833}.sh-mission-card.priority .sh-mission-accent{background:var(--color-danger)}.sh-mission-accent{background:var(--color-primary);border-radius:12px 0 0 12px;width:4px;position:absolute;top:0;bottom:0;left:0}.sh-mission-content{flex:1;min-width:0}.sh-mission-eyebrow{text-transform:uppercase;letter-spacing:.08em;color:var(--color-primary);margin-bottom:.45rem;font-size:.72rem;font-weight:700;display:inline-block}.sh-mission-card.priority .sh-mission-eyebrow{color:var(--color-danger)}.sh-mission-title{color:var(--color-ink);margin:0 0 .4rem;font-size:1.2rem;font-weight:700;line-height:1.3}.sh-mission-body{color:var(--text-muted);max-width:54ch;margin:0 0 1.1rem;font-size:.875rem;line-height:1.6}.sh-mission-actions{flex-wrap:wrap;align-items:center;gap:.65rem;display:flex}.sh-mission-cta{gap:.4rem}.sh-mission-alt{color:var(--text-muted);padding:.48rem .9rem;font-size:.84rem}.sh-mission-urgency-badge{color:var(--color-danger);white-space:nowrap;background:#b4231814;border:1px solid #b423182e;border-radius:8px;justify-content:center;align-self:flex-start;align-items:center;padding:.5rem 1rem;font-size:.82rem;font-weight:700;display:flex}.sh-card{background:var(--color-surface);border:1px solid var(--color-line);border-radius:10px;padding:1.2rem}.sh-card-label{text-transform:uppercase;letter-spacing:.09em;color:var(--text-muted);margin-bottom:.7rem;font-size:.7rem;font-weight:700}.sh-two-col{grid-template-columns:1fr 1fr;gap:1rem;display:grid}.sh-focus-week{color:var(--color-ink);margin-bottom:.3rem;font-size:1rem;font-weight:700}.sh-focus-summary{color:var(--text-muted);margin:0 0 .85rem;font-size:.84rem;line-height:1.55}.sh-focus-chips{flex-wrap:wrap;gap:.45rem;margin-bottom:1rem;display:flex}.sh-focus-chip{background:var(--color-primary-soft);color:var(--color-primary);border:1px solid #0f766e38;border-radius:6px;padding:.28rem .6rem;font-size:.76rem;font-weight:600;text-decoration:none;transition:background .15s}.sh-focus-chip:hover{background:#0f766e2e}.sh-focus-chip.locked{background:var(--color-canvas);border-color:var(--color-line);color:var(--text-muted)}.sh-regen-btn{color:var(--text-muted);cursor:pointer;text-underline-offset:2px;background:0 0;border:none;padding:0;font-size:.78rem;text-decoration:underline;transition:color .15s}.sh-regen-btn:hover{color:var(--color-ink)}.sh-regen-btn:disabled{opacity:.5;cursor:not-allowed}.sh-no-plan{color:var(--text-muted);font-size:.86rem;line-height:1.6}.sh-readiness-score{color:var(--color-ink);margin-bottom:.55rem;font-size:2.5rem;font-weight:800;line-height:1}.sh-readiness-sub{color:var(--text-muted);margin-top:.4rem;font-size:.75rem}.sh-plan-progress{border-top:1px solid var(--color-line);margin-top:1rem;padding-top:.85rem}.sh-plan-progress-row{justify-content:space-between;align-items:baseline;margin-bottom:.45rem;display:flex}.sh-plan-progress-label{text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);font-size:.7rem;font-weight:700}.sh-plan-progress-frac{color:var(--text-muted);font-size:.75rem}.sh-exam-countdown{color:var(--text-muted);align-items:center;gap:.4rem;margin-top:.85rem;font-size:.78rem;display:flex}.sh-exam-countdown svg{opacity:.55;flex-shrink:0}.sh-drill-list{flex-direction:column;gap:.6rem;display:flex}.sh-drill-row{background:var(--color-canvas);border:1px solid var(--color-line);border-radius:8px;align-items:center;gap:1rem;padding:.6rem .85rem;transition:border-color .15s;display:flex}.sh-drill-row:hover{border-color:var(--color-primary)}.sh-drill-info{flex:1;min-width:0}.sh-drill-name{color:var(--color-ink);white-space:nowrap;text-overflow:ellipsis;margin-bottom:.35rem;font-size:.86rem;font-weight:600;display:block;overflow:hidden}.sh-drill-right{flex-shrink:0;align-items:center;gap:.75rem;display:flex}.sh-drill-pct{color:var(--color-danger);text-align:right;min-width:52px;font-size:.78rem;font-weight:700}.sh-drill-cta{color:var(--color-primary);background:var(--color-primary-soft);white-space:nowrap;border-radius:5px;padding:.28rem .6rem;font-size:.8rem;font-weight:600;text-decoration:none;transition:background .15s}.sh-drill-cta:hover{background:#0f766e33}.sh-tools-grid{grid-template-columns:repeat(3,1fr);gap:.7rem;display:grid}.sh-tool-card{background:var(--color-surface);border:1px solid var(--color-line);color:var(--color-ink);border-radius:10px;align-items:flex-start;gap:.7rem;padding:.9rem 1rem;text-decoration:none;transition:border-color .15s,background .15s,transform .12s;display:flex}.sh-tool-card:hover{background:var(--color-surface-alt);border-color:var(--color-primary);transform:translateY(-1px)}.sh-tool-card svg{color:var(--color-primary);flex-shrink:0;margin-top:.1rem}.sh-tool-card strong{color:var(--color-ink);margin-bottom:.18rem;font-size:.875rem;font-weight:700;display:block}.sh-tool-card p{color:var(--text-muted);margin:0;font-size:.76rem;line-height:1.4}.sh-tool-card.featured{background:var(--color-primary-soft);border-color:#0f766e47}.sh-tool-card.featured:hover{background:#0f766e26}.sh-tool-card.featured strong{color:var(--color-primary-dark)}@media (width<=768px){.sh-two-col{grid-template-columns:1fr}.sh-tools-grid{grid-template-columns:repeat(2,1fr)}.sh-mission-card{flex-direction:column;gap:.85rem}.sh-readiness-score{font-size:2rem}}@media (width<=480px){.sh-tools-grid{grid-template-columns:repeat(2,1fr)}.sh-habit-bar{gap:.4rem}.sh-streak-chip,.sh-metric-chip{padding:.38rem .6rem}.sh-mission-card{padding:1.1rem 1.2rem 1.1rem 1.6rem}}.card-grid{gap:1rem;display:grid}.two-up{grid-template-columns:repeat(2,minmax(0,1fr))}.three-up{grid-template-columns:repeat(3,minmax(0,1fr))}.four-up{grid-template-columns:repeat(4,minmax(0,1fr))}.action-row,.inline-status{flex-wrap:wrap;align-items:center;gap:.6rem;display:flex}.inline-status.error{border-radius:var(--radius-sm);background-color:var(--color-danger-soft);color:var(--color-danger);border:1px solid #b91c1c38;padding:.75rem .9rem;font-weight:800}.btn{border-radius:var(--radius-sm);border:1px solid var(--border-color);background-color:var(--bg-panel);color:var(--text-main);cursor:pointer;white-space:nowrap;align-items:center;gap:.45rem;padding:.55rem 1.1rem;font-size:.875rem;font-weight:600;text-decoration:none;transition:background-color .15s,border-color .15s;display:inline-flex}.btn:hover:not(:disabled){background-color:var(--bg-hover);border-color:var(--text-muted)}.btn:disabled{opacity:.38;cursor:not-allowed}.btn-primary{background-color:var(--exam-primary);color:#fff;border-color:#0000}.btn-primary:hover:not(:disabled){background-color:var(--exam-primary-hover);border-color:#0000}.btn-sm{padding:.35rem .8rem;font-size:.82rem}.compact-btn{padding:.42rem .8rem;font-size:.8rem}.score-tag{background-color:var(--color-blue-soft);color:var(--color-blue);border-radius:999px;align-items:center;padding:.24rem .7rem;font-size:.78rem;font-weight:600;line-height:1.4;display:inline-flex}.warning-tag{background-color:var(--color-amber-soft);color:var(--color-amber)}.success-tag{background-color:var(--color-primary-soft);color:var(--color-primary-dark)}.danger-tag{background-color:var(--color-danger-soft);color:var(--color-danger)}.concept-tag{color:#4a41ab;background-color:#eeedfe}.stretch-tag{color:var(--text-muted);background-color:#f6f7f5f2;box-shadow:inset 0 0 0 1px #6271692e}.plan-week-block{background:var(--color-canvas);border:1px solid var(--color-line);border-radius:8px;padding:.85rem 1rem}.plan-week-block-header{flex-wrap:wrap;align-items:center;gap:.5rem;margin-bottom:.35rem;display:flex}.plan-week-badge{text-transform:uppercase;letter-spacing:.08em;color:var(--color-primary);background:var(--color-primary-soft);border-radius:4px;padding:.18rem .5rem;font-size:.68rem;font-weight:700}.plan-week-hrs{color:var(--color-primary-dark);margin-left:auto;font-size:.72rem;font-weight:800}.plan-week-stretch{color:var(--text-muted);border:1px solid #62716929;border-radius:999px;padding:.16rem .48rem;font-size:.7rem;font-weight:700}.plan-week-label{color:var(--color-ink);margin-bottom:.25rem;font-size:.9rem;font-weight:700}.plan-week-summary{color:var(--text-muted);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:0;font-size:.82rem;line-height:1.5;display:-webkit-box;overflow:hidden}.topic-list{flex-direction:column;display:flex}.topic-row{border-bottom:1px solid #5f6f6a24;justify-content:space-between;align-items:center;gap:1rem;padding:.8rem 0;display:flex}.topic-row:last-child{border-bottom:none}.planner-unit-list{flex-wrap:wrap;gap:.4rem;margin-top:.7rem;display:flex}.planner-unit-card{flex-wrap:wrap;align-items:center;gap:.35rem;display:inline-flex}.planner-unit-chip{cursor:pointer;border:1px solid #0000;border-radius:999px;align-items:center;min-height:26px;padding:0 .55rem;font-size:.74rem;font-weight:700;text-decoration:none;display:inline-flex}.available-unit{color:var(--color-primary-dark);background-color:var(--color-primary-soft);border-color:#0f766e2e}.premium-unit{color:var(--color-amber);background-color:var(--color-amber-soft);border-color:#b7791f33}button.planner-unit-chip{font-family:inherit}.planner-status-row{flex-wrap:wrap;align-items:center;gap:.55rem;margin-top:.65rem;display:flex}.planner-status-select{border-radius:var(--radius-sm);border:1px solid var(--border-color);background-color:var(--color-surface);min-height:28px;color:var(--color-ink);padding:0 .5rem;font-size:.78rem;font-weight:700}.progress-not-started{color:var(--text-muted);background-color:var(--color-surface-alt)}.progress-in-progress{color:var(--color-blue);background-color:var(--color-blue-soft)}.progress-done{color:var(--color-primary-dark);background-color:var(--color-primary-soft)}.progress-needs-review{color:var(--color-amber);background-color:var(--color-amber-soft)}.planner-coach-card{border:1px solid #0f766e2e;border-left:4px solid var(--color-primary);border-radius:var(--radius);box-shadow:var(--shadow-card);background:radial-gradient(circle at 10% 0,#0f766e1f,#0000 30%),linear-gradient(135deg,#fffffff5,#edf4f1e0);grid-template-columns:minmax(0,1.45fr) minmax(280px,.75fr);gap:1rem;padding:1.25rem;display:grid}.planner-coach-card.coach-behind{border-color:#b4530947;border-left-color:var(--color-amber);background:radial-gradient(circle at 10% 0,#b4530921,#0000 30%),linear-gradient(135deg,#fffffff5,#fff7edb8)}.planner-coach-card.coach-ahead{background:radial-gradient(circle at 10% 0,#0f766e29,#0000 30%),linear-gradient(135deg,#fffffff5,#e8f6f1c7);border-color:#0f766e40}.planner-coach-main{flex-direction:column;gap:.75rem;min-width:0;display:flex}.planner-coach-heading,.planner-card-heading.horizontal{justify-content:space-between;align-items:flex-start;gap:1rem;display:flex}.planner-coach-heading h2,.planner-card-heading h2{margin:0}.planner-coach-main p{color:var(--text-muted);max-width:70ch;margin:0;line-height:1.55}.planner-coach-next{border-radius:var(--radius-sm);background:#ffffffb8;border:1px solid #0f766e24;gap:.2rem;padding:.8rem .9rem;display:grid}.planner-coach-next strong{text-transform:uppercase;letter-spacing:.08em;color:var(--color-primary-dark);font-size:.78rem}.planner-coach-next span{color:var(--color-ink);font-weight:700;line-height:1.45}.planner-coach-actions,.planner-control-actions{flex-wrap:wrap;gap:.6rem;display:flex}.planner-coach-side{flex-direction:column;justify-content:center;gap:.7rem;min-width:0;display:flex}.coach-week-card{border-radius:var(--radius);background:#ffffffc7;border:1px solid #0f766e21;gap:.3rem;padding:1rem;display:grid}.coach-week-kicker{letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);font-size:.7rem;font-weight:800}.coach-week-card strong{color:var(--color-ink);font-size:1.05rem}.coach-week-card>span:not(.coach-week-kicker){color:var(--color-primary-dark);font-family:IBM Plex Mono,monospace;font-size:.75rem;font-weight:700}.coach-week-card p{color:var(--text-muted);margin:0;font-size:.86rem;line-height:1.45}.planner-command-grid{grid-template-columns:minmax(280px,.8fr) minmax(0,1.2fr);align-items:stretch;gap:1rem;display:grid}.planner-adjust-card,.planner-summary-card{flex-direction:column;display:flex}.planner-card-heading{gap:.25rem;margin-bottom:1rem;display:grid}.planner-start-note{border-radius:var(--radius-sm);background:var(--color-canvas);border:1px solid var(--color-line);gap:.2rem;padding:.75rem;display:grid}.planner-start-note strong{color:var(--color-ink);font-size:.85rem}.planner-start-note span{color:var(--text-muted);font-size:.82rem;line-height:1.45}.planner-form{flex-direction:column;gap:1.25rem;display:flex}.planner-field{flex-direction:column;gap:.4rem;display:flex}.planner-field label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.07em;font-size:.78rem;font-weight:700}.planner-input{border-radius:var(--radius-sm);border:1px solid var(--border-color);background-color:var(--color-canvas);width:100%;color:var(--color-ink);box-sizing:border-box;padding:.6rem .75rem;font-family:inherit;font-size:.9rem;transition:border-color .15s}.planner-input:focus{border-color:var(--color-primary);background-color:var(--color-surface);outline:none}.planner-hours-row{align-items:center;gap:.85rem;display:flex}.planner-hours-display{color:var(--color-ink);text-align:right;min-width:2.5ch;font-family:IBM Plex Mono,monospace;font-size:1.35rem;font-weight:600}.planner-hours-row input[type=range]{accent-color:var(--color-primary);cursor:pointer;flex:1;height:4px}.pace-row{border-bottom:1px solid #5f6f6a24;align-items:center;gap:.75rem;padding:.6rem 0 .75rem;display:flex}.pace-bar-track{background-color:var(--color-line);border-radius:999px;flex:1;height:5px;overflow:hidden}.pace-bar-fill{background-color:var(--color-primary);border-radius:999px;height:100%;transition:width .3s}.pace-bar-fill.tight{background-color:var(--color-amber)}.schedule-health-card{border:1px solid var(--color-line);border-radius:var(--radius);background:radial-gradient(circle at top right, #0f766e14, transparent 34%), var(--color-surface);margin-top:1rem;padding:1rem}.schedule-health-card.schedule-ahead{background:radial-gradient(circle at top right, #0f766e24, transparent 38%), var(--color-surface);border-color:#0f766e3d}.schedule-health-card.schedule-behind{background:radial-gradient(circle at top right, #b4530921, transparent 36%), var(--color-surface);border-color:#b4530942}.schedule-health-header{justify-content:space-between;align-items:flex-start;gap:1rem;margin-bottom:.5rem;display:flex}.schedule-health-header h3{color:var(--color-ink);margin:.16rem 0 0;font-size:1rem}.schedule-progress-track{background-color:var(--color-line);border-radius:999px;height:.5rem;margin-top:.85rem;position:relative;overflow:hidden}.schedule-progress-actual{background:linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));border-radius:999px;height:100%}.schedule-progress-expected{z-index:2;background-color:var(--color-amber);border-radius:999px;width:2px;height:1rem;position:absolute;top:-.25rem}.schedule-progress-labels{color:var(--text-muted);justify-content:space-between;gap:1rem;margin-top:.45rem;font-family:IBM Plex Mono,monospace;font-size:.68rem;display:flex}.planner-phase-header{text-transform:uppercase;letter-spacing:.09em;color:var(--text-muted);border-bottom:1px solid var(--color-line);align-items:center;gap:.6rem;margin-bottom:.15rem;padding:1rem 0 .4rem;font-size:.72rem;font-weight:700;display:flex}.planner-week-row{border-bottom:1px solid #5f6f6a1f;align-items:flex-start;gap:1rem;padding:.85rem 0;display:flex}.planner-week-row:last-child{border-bottom:none}.planner-week-row.coach-week-row{border-radius:var(--radius);background:radial-gradient(circle at 0 0,#0f766e14,#0000 34%),#ffffffc7;border:1px solid #0f766e2e;margin:.45rem -.65rem;padding:.95rem .65rem}.week-badge{flex-direction:column;flex-shrink:0;align-items:center;gap:.25rem;min-width:2.75rem;display:flex}.week-badge-number{background-color:var(--color-canvas);border:1px solid var(--color-line);width:2.1rem;height:2.1rem;color:var(--text-muted);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-family:IBM Plex Mono,monospace;font-size:.7rem;font-weight:700;display:flex}.week-badge-number.review-week{background-color:var(--color-primary-soft);color:var(--color-primary-dark);border-color:#0f766e40}.week-badge-number.final-week{background-color:var(--color-primary);border-color:var(--color-primary);color:#fff}.week-badge-number.coach-week-number{background-color:var(--color-primary);border-color:var(--color-primary);color:#fff;box-shadow:0 0 0 4px #0f766e1f}.week-badge-date{color:var(--text-muted);white-space:nowrap;text-align:center;font-family:IBM Plex Mono,monospace;font-size:.63rem}.week-content{flex:1;min-width:0}.week-content-header{justify-content:space-between;align-items:center;gap:.5rem;margin-bottom:.25rem;display:flex}.week-content-title{color:var(--color-ink);font-size:.9rem;font-weight:700}.week-focus-summary{color:var(--text-muted);font-size:.84rem;line-height:1.5}.week-primary-action{color:var(--text-muted);margin-top:.35rem;font-size:.79rem;font-style:italic}.planner-checkin-card{border:1px solid #0f766e29;border-left:4px solid var(--color-primary);border-radius:var(--radius);background:radial-gradient(circle at 4% 0%, #0f766e1a, transparent 32%), var(--color-surface);box-shadow:var(--shadow-card);grid-template-columns:minmax(0,1fr) auto auto;align-items:center;gap:1rem;padding:1rem 1.1rem;display:grid}.planner-checkin-card.schedule-behind{border-left-color:var(--color-amber);background:radial-gradient(circle at 4% 0%, #b453091f, transparent 32%), var(--color-surface);border-color:#b453093d}.planner-checkin-card h2{margin:.15rem 0 .2rem;font-size:1.05rem}.planner-checkin-card p{color:var(--text-muted);margin:0;line-height:1.45}.planner-checkin-stats{min-width:10rem;color:var(--text-muted);justify-items:end;gap:.25rem;font-family:IBM Plex Mono,monospace;font-size:.72rem;display:grid}.exam-header-bar{background-color:var(--bg-panel);border:1px solid var(--border-color);border-left:3px solid var(--color-primary);border-radius:var(--radius);box-shadow:var(--shadow-card);justify-content:space-between;align-items:center;padding:.85rem 1.25rem;display:flex}.exam-title-badge{text-transform:uppercase;letter-spacing:.1em;color:var(--exam-primary);margin-bottom:.1rem;font-size:.78rem;font-weight:700}.exam-timer{color:var(--text-main);background-color:var(--color-canvas);border-radius:var(--radius-sm);border:1px solid var(--border-color);align-items:center;gap:.4rem;padding:.3rem .75rem;font-family:IBM Plex Mono,monospace;font-size:1rem;font-weight:600;display:flex}.practice-workspace{max-width:980px;margin:0 auto;display:block}.practice-question-pane{min-width:0;padding:1.35rem 1.65rem 1.45rem}.practice-inline-feedback{margin-top:1.25rem}.recovery-action-card{border-radius:var(--radius-sm);background:linear-gradient(135deg,#fef2f2eb,#fffbebb3);border:1px solid #b423182e;justify-content:space-between;align-items:center;gap:1rem;margin-top:1rem;padding:.9rem 1rem;display:flex}.recovery-action-card div{gap:.2rem;display:grid}.recovery-action-card strong{color:var(--color-ink)}.recovery-action-card span{color:var(--text-muted);font-size:.86rem}.practice-feedback-pane{border-left:3px solid var(--color-primary);min-width:0;max-height:calc(100vh - 16rem);position:sticky;top:.75rem;overflow-y:auto}.practice-feedback-pane:not(.answered){border-left-color:var(--color-blue);background:radial-gradient(circle at top right, #1d4ed814, transparent 38%), var(--bg-panel)}.practice-feedback-pane .explanation-panel{background:0 0;border:none;margin:0;padding:0}.feedback-empty-state{flex-direction:column;justify-content:center;min-height:360px;display:flex}.feedback-step-badge{background-color:var(--color-blue-soft);width:2rem;height:2rem;color:var(--color-blue);border-radius:999px;justify-content:center;align-items:center;margin-bottom:.8rem;font-family:IBM Plex Mono,monospace;font-weight:800;display:inline-flex}.selected-answer-preview{border-radius:var(--radius-sm);background-color:var(--color-primary-soft);color:var(--color-primary-dark);margin-top:1rem;padding:.75rem .9rem;font-size:.88rem;font-weight:600}.answer-result-card{border-radius:var(--radius-sm);border:1px solid #0000;margin-bottom:1rem;padding:.85rem 1rem}.answer-result-card.is-correct{background-color:var(--color-primary-soft);color:var(--color-primary-dark);border-color:#0f766e3d}.answer-result-card.is-incorrect{background-color:var(--color-danger-soft);color:var(--color-danger);border-color:#b4231833}.answer-result-label{letter-spacing:.08em;text-transform:uppercase;font-size:.78rem;font-weight:800}.answer-result-copy{color:var(--text-main);margin-top:.2rem;font-size:.9rem}.exam-trap-note{border-radius:var(--radius-sm);background-color:var(--color-danger-soft);color:var(--color-danger);border:1px solid #b4231829;margin-top:1rem;padding:.8rem .9rem}.question-meta-row{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;gap:.75rem;margin-bottom:.85rem;padding-bottom:.75rem;display:flex}.question-meta-left{align-items:center;gap:.6rem;display:flex}.question-nav-btn{border-radius:var(--radius-sm);border:1px solid var(--border-color);width:2rem;height:2rem;color:var(--text-muted);cursor:pointer;background:0 0;flex-shrink:0;justify-content:center;align-items:center;font-size:.95rem;transition:border-color .15s,color .15s,background-color .15s;display:flex}.question-nav-btn:hover:not(:disabled){border-color:var(--color-primary);color:var(--color-primary);background-color:var(--color-primary-soft)}.question-nav-btn:disabled{opacity:.3;cursor:not-allowed}.question-number-title{font-family:IBM Plex Mono,monospace;font-size:1rem;font-weight:700}.question-flag-btn{border:1px solid var(--border-color);color:var(--text-muted);border-radius:var(--radius-sm);cursor:pointer;background:0 0;align-items:center;gap:.35rem;padding:.35rem .7rem;font-size:.82rem;font-weight:600;transition:all .15s;display:flex}.question-flag-btn:hover{border-color:var(--color-amber);color:var(--color-amber)}.question-flag-btn.flagged{border-color:var(--color-amber);color:var(--color-amber);background-color:var(--color-amber-soft);box-shadow:0 0 0 2px #b7791f14}.question-action-row{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:.5rem;display:flex}.question-badges{flex-wrap:wrap;gap:.4rem;margin-bottom:.65rem;display:flex}.question-text{color:var(--text-main);margin-bottom:1rem;font-size:.98rem;line-height:1.6}.question-text p,.option-btn p{margin:0}.question-text p+p{margin-top:.55rem}.option-btn p+p{margin-top:.35rem}.scenario-panel{border-radius:var(--radius-sm);border:1px solid #1d4ed826;border-left:3px solid var(--color-blue);background-color:var(--color-blue-soft);color:#1e3a8a;margin-bottom:1.25rem;padding:.9rem 1.1rem;font-size:.9rem;line-height:1.65}.options-grid{flex-direction:column;gap:.45rem;display:flex}.option-btn{background-color:var(--color-canvas);border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--text-main);text-align:left;cursor:pointer;align-items:flex-start;gap:.75rem;width:100%;padding:.66rem .9rem;font-size:.9rem;line-height:1.45;transition:border-color .14s,background-color .14s;display:flex}.option-btn:hover:not(:disabled),.option-btn.selected{border-color:var(--exam-primary);background-color:var(--color-primary-soft)}.option-btn.correct{border-color:var(--accent-green);background-color:var(--color-primary-soft);color:var(--color-primary-dark)}.option-btn.incorrect{border-color:var(--accent-red);background-color:var(--color-danger-soft);color:var(--color-danger)}.option-circle-indicator{border:2px solid var(--border-color);border-radius:50%;justify-content:center;align-items:center;width:22px;min-width:22px;height:22px;margin-top:.1rem;font-family:IBM Plex Mono,monospace;font-size:.72rem;font-weight:700;transition:all .14s;display:flex}.option-btn.selected .option-circle-indicator{border-color:var(--exam-primary);background-color:var(--exam-primary);color:#fff}.option-btn.correct .option-circle-indicator{border-color:var(--accent-green);background-color:var(--accent-green);color:#fff}.option-btn.incorrect .option-circle-indicator{border-color:var(--accent-red);background-color:var(--accent-red);color:#fff}.explanation-panel{border-radius:var(--radius-sm);background-color:var(--color-canvas);border:1px solid var(--border-color);border-left:3px solid var(--color-primary);margin-top:1.25rem;padding:1.25rem}.explanation-title{color:var(--color-primary);text-transform:uppercase;letter-spacing:.12em;margin-bottom:.65rem;font-size:.7rem;font-weight:700}.exam-control-bar{border-top:1px solid var(--border-color);justify-content:space-between;align-items:center;margin-top:1.25rem;padding-top:1rem;display:flex}.check-answer-bar{z-index:10;background:var(--color-surface);border-top:1px solid var(--color-line);border-radius:0 0 10px 10px;justify-content:space-between;align-items:center;gap:1rem;margin-top:1.5rem;padding:.85rem 1.25rem;display:flex;position:sticky;bottom:0;box-shadow:0 -4px 16px #00000012}.quiz-sticky-nav{background:var(--color-surface);border-top:1px solid var(--color-line);flex-shrink:0;justify-content:space-between;align-items:center;gap:1rem;padding:.5rem 1.25rem;display:flex;box-shadow:0 -2px 12px #0000000f}.quiz-nav-left,.quiz-nav-actions{align-items:center;gap:.75rem;display:flex}.quiz-nav-left{gap:.5rem}.quiz-nav-btn{min-width:90px}.quiz-nav-btn-ghost{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:6px;padding:.4rem .6rem;font-size:.82rem;transition:color .15s}.quiz-nav-btn-ghost:hover{color:var(--color-ink)}.quiz-result-badge{letter-spacing:.01em;white-space:nowrap;border-radius:7px;align-items:center;gap:.35rem;padding:.4rem .9rem;font-size:.85rem;font-weight:700;display:inline-flex}.quiz-result-badge.badge-correct{color:#10b981;background:#10b9811f;border:1px solid #10b98140}.quiz-result-badge.badge-incorrect{color:var(--accent-red,#ef4444);background:#ef44441a;border:1px solid #ef444433}.quiz-nav-center{flex-direction:column;align-items:center;gap:.1rem;display:flex}.quiz-nav-progress{color:var(--color-ink);font-size:.85rem;font-weight:600}.quiz-nav-hint{color:var(--text-muted);letter-spacing:.02em;font-size:.7rem}.quiz-viewer-root{flex-direction:column;height:100dvh;margin:calc(-1*clamp(1.25rem,3vw,2rem)) calc(-1*clamp(1.5rem,4vw,2.75rem));display:flex;overflow:hidden}.quiz-top-chrome{background:var(--color-canvas);border-bottom:1px solid var(--color-line);flex-direction:column;flex-shrink:0;gap:.45rem;padding:.65rem .85rem .4rem;transition:background .2s,border-color .2s,box-shadow .2s;display:flex}.quiz-top-chrome.drill-mode{background:radial-gradient(circle at 8% 0,#a7f3d057,#0000 30%),linear-gradient(135deg,#0e2a25 0%,#123f35 56%,#0f766e 100%);border-bottom-color:#a7f3d08c;box-shadow:0 12px 28px #0e2a252e}.drill-toggle-wrap{cursor:pointer;background:0 0;border:none;align-items:center;gap:.5rem;padding:0;display:flex}.drill-toggle-track{border-radius:11px;flex-shrink:0;width:38px;height:22px;transition:background .2s;position:relative}.drill-track-off{background:#e24b4a}.drill-track-on{background:#22c55e}.drill-toggle-thumb{background:#fff;border-radius:9px;width:18px;height:18px;transition:left .2s;position:absolute;top:2px}.drill-track-off .drill-toggle-thumb{left:2px}.drill-track-on .drill-toggle-thumb{left:18px}.drill-toggle-label{white-space:nowrap;font-size:.78rem;font-weight:600}.drill-label-off{color:#a32d2d}.drill-label-on{color:#dcfce7}.quiz-top-chrome .exam-header-bar{box-shadow:none;border-radius:8px;padding:.5rem .85rem}.quiz-top-chrome.drill-mode .exam-header-bar{background:#f0fdf41a;border-color:#bbf7d038}.quiz-top-chrome.drill-mode .exam-title-badge{color:#dcfce7}.quiz-top-chrome.drill-mode .muted-copy{color:#dcfce7c7}.quiz-top-chrome.drill-mode .exam-timer{color:#dcfce7;background:#0f172a2e;border-color:#bbf7d040}.quiz-top-chrome .quiz-filter-bar{box-shadow:none;border-radius:8px;padding:.38rem .65rem}.quiz-top-chrome.drill-mode .quiz-filter-bar{background:#f0fdf4eb;border-color:#22c55e59}.quiz-top-chrome .session-indicator-grid{box-shadow:none;border-radius:8px;padding:.38rem .65rem}.quiz-top-chrome.drill-mode .session-indicator-grid{background:#f0fdf4f5;border-color:#22c55e61;box-shadow:inset 0 0 0 1px #1665340f}.quiz-top-chrome.drill-mode .drill-repair-map{border-color:#22c55e61}.quiz-scroll-body{scroll-behavior:smooth;flex:1;padding:.75rem 1rem .95rem;scroll-padding-bottom:5rem;overflow-y:auto}.quiz-filter-bar{background-color:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius);box-shadow:var(--shadow-card);flex-direction:column;gap:.38rem;padding:.55rem .8rem;display:flex}.quiz-filter-row{scrollbar-width:none;-webkit-overflow-scrolling:touch;flex-wrap:nowrap;align-items:center;gap:.38rem;display:flex;overflow-x:auto}.quiz-filter-row::-webkit-scrollbar{display:none}.quiz-filter-label{text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);white-space:nowrap;min-width:3.5rem;font-size:.7rem;font-weight:700}.filter-pill{border:1px solid var(--border-color);color:var(--text-muted);cursor:pointer;white-space:nowrap;background-color:#0000;border-radius:999px;align-items:center;padding:.18rem .55rem;font-family:IBM Plex Sans,sans-serif;font-size:.74rem;font-weight:600;transition:border-color .14s,color .14s,background-color .14s;display:inline-flex}.filter-pill:hover{border-color:var(--color-primary);color:var(--color-primary)}.filter-pill.active{background-color:var(--color-primary);border-color:var(--color-primary);color:#fff}.filter-pill.diff-active-hard{background-color:var(--color-danger);border-color:var(--color-danger);color:#fff}.filter-pill.diff-active-high{background-color:var(--color-amber);border-color:var(--color-amber);color:#fff}.filter-pill.diff-active-core{color:#fff;background-color:#5b21b6;border-color:#5b21b6}.flag-review-row{border-top:1px solid #5f6f6a24;padding-top:.25rem}.flag-filter-pill{color:var(--color-amber);background-color:var(--color-amber-soft);border-color:#b7791f57}.flag-filter-pill.active{background-color:var(--color-amber);border-color:var(--color-amber);color:#fff}.quiz-filter-count{color:var(--text-muted);white-space:nowrap;margin-left:auto;font-family:IBM Plex Mono,monospace;font-size:.75rem}.special-q-strip{background-color:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius);box-shadow:var(--shadow-card);padding:1rem 1.25rem}.recovery-strip{border-left:3px solid var(--color-danger);padding:.75rem 1rem}.special-q-header{align-items:baseline;gap:.5rem;margin-bottom:.75rem;display:flex}.recovery-strip .special-q-header{align-items:center;margin-bottom:.55rem}.special-q-header strong{color:var(--color-ink);font-size:.85rem;font-weight:700}.special-q-header span{color:var(--text-muted);font-size:.78rem}.recovery-start-btn{margin-left:auto}.special-q-groups{flex-direction:column;gap:.6rem;display:flex}.special-q-group{align-items:flex-start;gap:.65rem;display:flex}.special-q-group-label{text-transform:uppercase;letter-spacing:.07em;white-space:nowrap;min-width:4.5rem;padding-top:.25rem;font-size:.72rem;font-weight:700}.special-q-group-label.flagged-label{color:var(--color-amber)}.special-q-group-label.incorrect-label{color:var(--color-danger)}.special-q-scroll{flex-wrap:wrap;gap:.4rem;display:flex}.special-q-pill{cursor:pointer;white-space:nowrap;border:1px solid #0000;border-radius:999px;align-items:center;gap:.3rem;padding:.28rem .65rem;font-family:IBM Plex Mono,monospace;font-size:.78rem;font-weight:700;transition:opacity .15s,box-shadow .15s;display:inline-flex}.special-q-pill:hover{opacity:.82;box-shadow:var(--shadow-card)}.special-q-pill.flagged-pill{background-color:var(--color-amber-soft);color:var(--color-amber);border-color:#b7791f40}.special-q-pill.incorrect-pill{background-color:var(--color-danger-soft);color:var(--color-danger);border-color:#b4231833}.special-q-pill-topic{opacity:.85;text-overflow:ellipsis;white-space:nowrap;max-width:14ch;font-family:IBM Plex Sans,sans-serif;font-size:.74rem;font-weight:500;overflow:hidden}.session-indicator-grid{background-color:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius);box-shadow:var(--shadow-card);scroll-behavior:smooth;scrollbar-width:none;-ms-overflow-style:none;flex-wrap:nowrap;gap:.3rem;padding:.65rem 1rem;display:flex;overflow-x:auto}.session-indicator-grid::-webkit-scrollbar{display:none}.drill-indicator-grid{gap:.42rem}.drill-repair-map{border:1px solid var(--color-line);border-radius:var(--radius);box-shadow:var(--shadow-card);background:linear-gradient(135deg,#f0fdf4fa,#ecfdf5eb);align-items:center;gap:.85rem;min-height:56px;max-height:72px;padding:.55rem .85rem;display:flex;overflow:hidden}.drill-repair-map-header{flex:none;justify-content:space-between;align-items:center;gap:.8rem;min-width:260px;display:flex}.drill-repair-map-header div:first-child{flex-direction:column;align-items:flex-start;gap:.05rem;min-width:0;display:flex}.drill-repair-map-header strong{color:#14532d;letter-spacing:.08em;text-transform:uppercase;font-size:.82rem}.drill-repair-map-header span{color:#3f6d54;font-size:.78rem;line-height:1.2}.drill-repair-counts{align-items:center;gap:.45rem;font-family:IBM Plex Mono,monospace;font-size:.78rem;font-weight:800;display:flex}.drill-repair-counts span{border-radius:999px;padding:.18rem .55rem}.drill-repair-counts .open-count{color:var(--color-danger);background-color:var(--color-danger-soft)}.drill-repair-counts .recovered-count{color:#166534;background-color:#dcfce7}.drill-repair-steps{scroll-behavior:smooth;scrollbar-width:none;-ms-overflow-style:none;flex:auto;align-items:center;gap:.4rem;min-width:0;padding:.1rem .1rem .2rem;display:flex;overflow:auto hidden}.drill-repair-steps::-webkit-scrollbar{display:none}.drill-step-btn{width:34px;min-width:34px;height:34px;color:var(--color-danger);cursor:pointer;background:linear-gradient(135deg,#fde2dfe6,#fffbebb8);border:1px solid #b4231847;border-radius:999px;justify-content:center;align-items:center;font-family:IBM Plex Mono,monospace;font-size:.8rem;font-weight:900;line-height:1;transition:transform .14s,box-shadow .14s,border-color .14s,background-color .14s;display:inline-flex}.drill-step-btn:hover{transform:translateY(-1px);box-shadow:0 6px 16px #14532d1f}.drill-step-btn.active{color:#fff;background:#14532d;border-color:#22c55e;box-shadow:0 0 0 3px #22c55e47}.drill-step-btn.recovered{color:#166534;background:linear-gradient(135deg,#dcfce7fa,#f0fdf4e6);border-color:#16653447}.drill-step-btn.recovered.active{color:#fff;background:#166534}.indicator-btn{border:1px solid var(--border-color);background-color:var(--color-canvas);color:#0000;cursor:pointer;border-radius:4px;width:24px;height:24px;font-size:0;transition:background-color .14s,border-color .14s,box-shadow .14s}.drill-indicator-grid .indicator-btn{border-radius:8px;width:28px;height:28px}.indicator-btn:hover{border-color:var(--color-primary);box-shadow:0 0 0 2px var(--color-primary-soft)}.indicator-btn.active{border-color:var(--color-primary);box-shadow:0 0 0 2px var(--color-primary);background-color:var(--color-primary)}.indicator-btn.correct{background-color:var(--color-primary-soft);border-color:#0f766e73}.indicator-btn.correct.active{background-color:var(--color-primary);border-color:var(--color-primary);box-shadow:0 0 0 2px #0f766e66}.indicator-btn.recovered{background:linear-gradient(135deg, var(--color-danger-soft) 0 42%, var(--color-primary-soft) 43% 100%);border-color:#0f766e73}.indicator-btn.recovered.active{background:linear-gradient(135deg, var(--color-danger) 0 42%, var(--color-primary) 43% 100%);border-color:var(--color-primary);box-shadow:0 0 0 2px #0f766e59}.indicator-btn.incorrect{background-color:var(--color-danger-soft);border-color:#b4231866}.indicator-btn.incorrect.active{background-color:var(--color-danger);border-color:var(--color-danger);box-shadow:0 0 0 2px #b4231859}.indicator-btn.flagged{background-color:var(--color-amber-soft);border-color:#b7791f66}.indicator-btn.flagged.active{background-color:var(--color-amber);border-color:var(--color-amber);box-shadow:0 0 0 2px #b7791f59}.indicator-legend{gap:1rem;padding:.4rem 1rem 0;display:flex}.indicator-legend-item{color:var(--text-muted);align-items:center;gap:.3rem;font-size:.72rem;display:flex}.indicator-legend-dot{border:1px solid #0000;border-radius:2px;flex-shrink:0;width:10px;height:10px}.legend-unanswered{background-color:var(--color-canvas);border-color:var(--border-color)}.legend-correct{background-color:var(--color-primary-soft);border-color:#0f766e73}.legend-incorrect{background-color:var(--color-danger-soft);border-color:#b4231866}.legend-flagged{background-color:var(--color-amber-soft);border-color:#b7791f66}.upgrade-panel{border-radius:var(--radius);border:1px solid #0f766e40;border-left:3px solid var(--color-primary);background:linear-gradient(135deg, #0f766e0f, transparent 55%), var(--bg-panel);box-shadow:var(--shadow-card);flex-direction:column;gap:1rem;padding:1.5rem;display:flex}.upgrade-panel-header{align-items:flex-start;gap:1rem;display:flex}.upgrade-panel-header h2{margin-bottom:.25rem;font-size:1rem;font-weight:700}.upgrade-panel-icon{border-radius:var(--radius-sm);background-color:var(--color-primary-soft);width:36px;min-width:36px;height:36px;color:var(--color-primary);justify-content:center;align-items:center;display:flex}.upgrade-panel-footer{justify-content:flex-end;display:flex}.plan-launch-badge{background:var(--color-amber-soft);width:fit-content;color:var(--color-amber);letter-spacing:.04em;text-transform:uppercase;border:1px solid #8a52102e;border-radius:999px;align-items:center;font-size:.72rem;font-weight:700;display:inline-flex}.plan-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem;display:grid}.plan-card{border-radius:var(--radius);border:1px solid var(--border-color);background-color:var(--bg-panel);box-shadow:var(--shadow-card);flex-direction:column;gap:.85rem;padding:1.4rem;display:flex}.featured-plan{box-shadow:var(--shadow-raised);border-color:#0f766e52}.plan-name{font-size:1.1rem;font-weight:700}.plan-price-row{flex-wrap:wrap;align-items:center;gap:.45rem;margin-top:.25rem;display:flex}.plan-price{color:var(--exam-primary);font-size:1.08rem;font-weight:700}.plan-original-price{color:var(--text-muted);font-size:.82rem;text-decoration:line-through}.plan-savings{background:var(--color-primary-soft);color:var(--color-primary-dark);border-radius:999px;align-items:center;padding:.16rem .45rem;font-size:.72rem;font-weight:700;display:inline-flex}.plan-launch-badge{margin-bottom:.45rem;padding:.2rem .55rem}.plan-description{color:var(--text-muted);font-size:.9rem}.feature-list{color:var(--text-muted);gap:.3rem;padding-left:1.1rem;font-size:.875rem;display:grid}.founder-offer-banner{border-radius:var(--radius-lg);background:radial-gradient(circle at top left, #c2562b1f, transparent 34%), linear-gradient(135deg, #faeedae6, #e0f0ebcc), var(--color-surface);box-shadow:var(--shadow-card);border:1px solid #c2562b38;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:1.25rem;padding:1.35rem 1.5rem;display:grid}.founder-offer-copy{gap:.45rem;display:grid}.founder-offer-copy h2{letter-spacing:-.03em;margin:0;font-size:clamp(1.45rem,2.4vw,2rem);font-weight:750;line-height:1.08}.founder-offer-copy p{color:var(--text-muted);max-width:66ch;margin:0}.founder-offer-actions{flex-wrap:wrap;justify-content:flex-end;gap:.75rem;display:flex}.founder-offer-choice{border-radius:var(--radius-sm);min-width:158px;color:var(--color-ink);text-align:left;cursor:pointer;background:#ffffffbd;border:1px solid #14131014;gap:.15rem;padding:.85rem .95rem;transition:transform .18s,box-shadow .18s,border-color .18s;display:grid}.founder-offer-choice:hover:not(:disabled){box-shadow:var(--shadow-card);border-color:#0f766e47;transform:translateY(-1px)}.founder-offer-choice:disabled{cursor:not-allowed;opacity:.7}.founder-offer-choice span,.founder-offer-choice small{color:var(--text-muted);font-size:.78rem}.founder-offer-choice strong{color:var(--color-ink);font-size:1rem}.primary-offer-choice{background:#ffffffeb;border-color:#0f766e4d}.premium-command-panel{border-radius:var(--radius);box-shadow:var(--shadow-raised);background:radial-gradient(circle at 100% 0,#0f766e24,#0000 34%),linear-gradient(135deg,#fff 0%,#edf4f1 100%);border:1px solid #0f766e38;grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:1.5rem;padding:2rem;display:grid}.premium-command-panel h1{letter-spacing:-.025em;margin-bottom:.45rem;font-size:1.8rem;font-weight:800;line-height:1.15}.premium-command-panel p{color:var(--text-muted);max-width:70ch}.premium-status-row{flex-wrap:wrap;gap:.5rem;margin-top:1rem;display:flex}.premium-command-actions{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:.65rem;display:flex}.premium-benefit-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:1rem;display:grid}.premium-benefit-card{border-radius:var(--radius);border:1px solid var(--color-line);background-color:var(--bg-panel);box-shadow:var(--shadow-card);flex-direction:column;gap:.7rem;min-height:230px;padding:1.25rem;display:flex}.premium-benefit-icon{background-color:var(--color-primary-soft);width:34px;height:34px;color:var(--color-primary-dark);border-radius:999px;justify-content:center;align-items:center;font-family:IBM Plex Mono,monospace;font-size:.68rem;font-weight:800;display:inline-flex}.premium-benefit-card h2,.premium-next-steps h2{font-size:1rem;line-height:1.3}.premium-benefit-card p{color:var(--text-muted);flex:1;font-size:.9rem}.premium-next-steps{justify-content:space-between;align-items:center;gap:1rem;display:flex}.data-table{border-collapse:collapse;width:100%}.data-table th,.data-table td{text-align:left;border-bottom:1px solid #5f6f6a24;padding:.85rem 1rem}.data-table th{background-color:var(--color-surface-alt);color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;font-size:.76rem;font-weight:700}.ad-slot{border-radius:var(--radius);background-color:var(--color-surface-alt);text-align:center;border:1px dashed #5f6f6a4d;flex-direction:column;justify-content:center;align-items:center;gap:.4rem;min-height:100px;padding:1rem;display:flex}.ad-slot-kicker{color:var(--text-muted);text-transform:uppercase;letter-spacing:.12em;font-size:.68rem;font-weight:700}.ad-slot-body{font-size:.9rem;font-weight:700}.error-banner{color:var(--color-danger);background-color:var(--color-danger-soft);border-radius:var(--radius-sm);border:1px solid #b4231833;flex-direction:column;gap:.55rem;margin-bottom:1rem;padding:.85rem 1rem;font-size:.9rem;display:flex}.error-banner-action{color:var(--color-danger);cursor:pointer;background:0 0;border:1px solid #b4231859;border-radius:6px;align-self:flex-start;padding:.35rem .8rem;font-family:inherit;font-size:.82rem;font-weight:700;transition:background .15s}.error-banner-action:hover{background:#b4231814}.success-banner{color:var(--color-primary-dark);background-color:var(--color-primary-soft);border-radius:var(--radius-sm);border:1px solid #0f766e4d;padding:.85rem 1rem;font-size:.9rem}.warning-banner{color:var(--color-amber);background-color:var(--color-amber-soft);border-radius:var(--radius-sm);border:1px solid #b7791f4d;padding:.85rem 1rem;font-size:.9rem}.flashcard-page{gap:1rem;display:grid}.flashcard-hero{justify-content:space-between;align-items:flex-start;gap:1rem;display:flex}.flashcard-hero h1{margin:.2rem 0 .35rem}.flashcard-book-tabs{gap:.55rem;padding:.15rem 0 .25rem;display:flex;overflow-x:auto}.flashcard-book-tab{border:1px solid var(--color-line);background-color:var(--color-surface);color:var(--text-muted);cursor:pointer;border-radius:999px;flex:none;align-items:center;gap:.45rem;padding:.55rem .75rem;font-weight:850;transition:background-color .14s,border-color .14s,color .14s;display:inline-flex}.flashcard-book-tab small{color:inherit;opacity:.72;font-size:.72rem;font-weight:750}.flashcard-book-tab.active{background-color:var(--color-primary-soft);color:var(--color-primary-dark);border-color:#0f766e7a}.flashcard-book-tab.locked{background-color:#ffffffb8}.flashcard-locked-card{justify-content:space-between;align-items:center;gap:1rem;display:flex}.flashcard-container{perspective:1000px;cursor:pointer;width:100%;max-width:620px;height:360px;margin:.5rem auto 0}.flashcard-inner{width:100%;height:100%;transform-style:preserve-3d;transition:transform .55s cubic-bezier(.4,.2,.2,1);position:relative}.flashcard-inner.flipped{transform:rotateY(180deg)}.flashcard-front,.flashcard-back{backface-visibility:hidden;border-radius:var(--radius);border:1px solid var(--border-color);width:100%;height:100%;box-shadow:var(--shadow-raised);padding:2rem;position:absolute;overflow-y:auto}.flashcard-front{background-color:var(--bg-panel)}.flashcard-back{background-color:var(--bg-lighter);transform:rotateY(180deg)}.flashcard-card-kicker{color:var(--color-primary);letter-spacing:.05em;text-transform:uppercase;margin-bottom:1rem;font-size:.78rem;font-weight:850}.flashcard-front-copy{color:var(--color-ink);font-size:1.25rem;font-weight:650;line-height:1.6}.flashcard-flip-hint{color:var(--text-muted);font-size:.85rem;position:absolute;bottom:1.5rem;right:1.5rem}.flashcard-answer{color:var(--color-primary);margin-bottom:1rem;font-size:1.15rem;font-weight:750}.flashcard-trap{border-radius:var(--radius-sm);border-left:4px solid var(--accent-red);background-color:#ef44441a;margin-top:1.5rem;padding:1rem}.flashcard-trap>div{color:var(--accent-red);letter-spacing:.06em;margin-bottom:.25rem;font-size:.78rem;font-weight:900}.flashcard-logic{margin-top:1rem;font-size:.95rem}.flashcard-code-anchor{background-color:var(--bg-dark);color:var(--text-muted);border-radius:4px;margin-top:1.5rem;padding:.5rem;font-family:monospace;font-size:.85rem}.flashcard-actions{max-width:620px;margin:2rem auto 0}.auth-shell{background:radial-gradient(circle at 12% 12%, #2f7d6b29, transparent 28%), radial-gradient(circle at 86% 18%, #c2562b1f, transparent 28%), linear-gradient(160deg, #f0f7f5 0%, var(--color-canvas) 62%);justify-content:center;align-items:center;min-height:100vh;padding:1rem 1.25rem;display:flex;position:relative;overflow:hidden}.auth-shell:before{content:"";pointer-events:none;border:1px solid #0f766e14;border-radius:28px;position:absolute;inset:1.25rem}.auth-hero-card{z-index:1;grid-template-columns:minmax(0,1.08fr) minmax(380px,.92fr);align-items:stretch;gap:1rem;width:min(1180px,100%);display:grid;position:relative}.auth-copy{border-radius:var(--radius);border:1px solid var(--border-color);border-left:3px solid var(--color-primary);background:linear-gradient(135deg, #fffffff5, #f1f8f5db), var(--color-surface);box-shadow:var(--shadow-raised);padding:clamp(1.35rem,2.1vw,1.85rem)}.auth-hero-badge{background:var(--color-primary-soft);width:fit-content;color:var(--color-primary-dark);border:1px solid #2f7d6b33;border-radius:999px;align-items:center;gap:.45rem;margin-bottom:.7rem;padding:.35rem .65rem;font-size:.78rem;font-weight:850;display:inline-flex}.auth-copy h1{letter-spacing:-.04em;max-width:17ch;margin:.2rem 0 .65rem;font-size:clamp(2rem,3.35vw,3.25rem);font-weight:800;line-height:1}.auth-lede{color:var(--text-muted);max-width:58ch;font-size:.96rem;line-height:1.5}.auth-value-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:.55rem;margin:1rem 0;display:grid}.auth-value-card{border-radius:var(--radius-sm);color:var(--color-primary-dark);background:#ffffffbd;border:1px solid #0f766e26;gap:.22rem;padding:.75rem;display:grid}.auth-value-card svg{margin-bottom:.1rem}.auth-value-card strong{color:var(--color-ink);font-size:.88rem}.auth-value-card span{color:var(--text-muted);font-size:.78rem;line-height:1.35}.auth-proof-strip{grid-template-columns:repeat(3,minmax(0,1fr));gap:.55rem;display:grid}.auth-proof-strip>div{border:1px solid var(--border-color);border-radius:var(--radius-sm);background:var(--color-canvas);min-width:0;padding:.7rem}.auth-proof-strip span,.auth-proof-strip small{color:var(--text-muted);font-size:.72rem;line-height:1.3;display:block}.auth-proof-strip strong{color:var(--color-ink);letter-spacing:-.02em;margin:.12rem 0;font-size:1rem;display:block}.auth-workflow{gap:.6rem;margin:1.5rem 0;display:grid}.auth-workflow div,.auth-feature-row,.auth-plan-title{align-items:center;gap:.5rem;display:flex}.auth-workflow div{border-radius:var(--radius-sm);background-color:var(--color-primary-soft);color:var(--color-primary-dark);border:1px solid #0f766e26;padding:.7rem .9rem;font-size:.92rem;font-weight:600}.auth-model-strip{grid-template-columns:1fr 1fr;gap:.75rem;display:grid}.auth-model-strip>div{border-radius:var(--radius-sm);border:1px solid var(--border-color);background-color:var(--color-canvas);padding:1rem}.auth-model-strip strong{margin:.55rem 0 .2rem;font-size:.92rem;display:block}.auth-model-strip p{color:var(--text-muted);font-size:.85rem;line-height:1.5}.auth-card{border-radius:var(--radius);border:1px solid var(--border-color);width:100%;box-shadow:var(--shadow-raised);background:linear-gradient(#fffffffa,#fafaf8f0);flex-direction:column;justify-content:center;align-self:stretch;padding:clamp(1.35rem,2vw,1.65rem);display:flex}.auth-card-kicker{background-color:var(--color-primary-soft);width:fit-content;color:var(--color-primary-dark);letter-spacing:.1em;text-transform:uppercase;border-radius:999px;margin-bottom:.55rem;padding:.25rem .6rem;font-size:.7rem;font-weight:800}.auth-card h2{letter-spacing:-.02em;margin-bottom:.45rem;font-size:clamp(1.35rem,2.1vw,1.75rem);font-weight:800;line-height:1.1}.auth-start-panel{border-radius:var(--radius-sm);background:linear-gradient(135deg,#e0f0ebd1,#ffffffd1);border:1px solid #0f766e29;gap:.6rem;margin:.85rem 0 .65rem;padding:.85rem;display:grid}.auth-start-panel-header{color:var(--color-primary-dark);align-items:center;gap:.5rem;font-size:.85rem;font-weight:850;display:flex}.auth-free-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:.35rem .65rem;display:grid}.auth-upgrade-note{color:var(--text-muted);border-top:1px solid #0f766e1f;align-items:flex-start;gap:.45rem;padding-top:.5rem;font-size:.78rem;line-height:1.35;display:flex}.auth-upgrade-note svg{color:var(--color-amber);flex-shrink:0;margin-top:.1rem}.auth-mini-dashboard{grid-template-columns:repeat(2,minmax(0,1fr));gap:.55rem;margin-bottom:.65rem;display:grid}.auth-mini-dashboard>div{border:1px solid var(--border-color);border-radius:var(--radius-sm);background:var(--color-surface);gap:.2rem;padding:.7rem;display:grid}.auth-mini-dashboard span{color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;font-size:.7rem;font-weight:750}.auth-mini-dashboard strong{color:var(--color-ink);font-size:.82rem;line-height:1.35}.auth-assurance-row{flex-wrap:wrap;gap:.45rem;margin-bottom:.65rem;display:flex}.auth-assurance-row>div{background:var(--color-canvas);color:var(--text-muted);border-radius:999px;align-items:center;gap:.4rem;padding:.35rem .55rem;font-size:.76rem;font-weight:750;display:inline-flex}.auth-assurance-row svg{color:var(--color-primary)}.auth-plan-columns{grid-template-columns:1fr 1fr;gap:.75rem;margin:1.25rem 0;display:grid}.auth-plan-column{border-radius:var(--radius-sm);background-color:var(--color-primary-soft);border:1px solid #0f766e29;align-content:start;gap:.45rem;padding:.9rem;display:grid}.premium-column{background-color:var(--color-amber-soft);border-color:#b7791f33}.auth-plan-title{color:var(--color-primary-dark);margin-bottom:.2rem;font-size:.85rem;font-weight:700}.premium-column .auth-plan-title{color:var(--color-amber)}.auth-feature-row{color:var(--text-muted);font-size:.78rem;line-height:1.35}.auth-feature-row svg{color:var(--color-primary);flex-shrink:0}.premium-column .auth-feature-row svg{color:var(--color-amber)}.auth-action-row{flex-wrap:wrap;gap:.65rem;margin-top:.5rem;display:flex}.auth-provider-list{gap:.6rem;display:grid}.auth-provider-btn{background:var(--color-sidebar);color:#fff;border-radius:var(--radius-sm);cursor:pointer;width:100%;min-height:3rem;box-shadow:var(--shadow-card);border:1px solid #0e1d1be6;justify-content:center;align-items:center;gap:.65rem;padding:.72rem 1rem;font-size:.95rem;font-weight:850;transition:border-color .15s,background-color .15s,transform .15s,box-shadow .15s;display:flex}.auth-provider-btn:hover:not(:disabled){background-color:var(--color-primary-dark);border-color:#2f7d6bbf;transform:translateY(-1px);box-shadow:0 14px 28px #0e1d1b2e}.auth-provider-btn:disabled{opacity:.5;cursor:not-allowed}.provider-mark{background:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:24px;height:24px;font-size:.72rem;font-weight:800;display:inline-flex}.google-provider .provider-mark{color:#4285f4}.facebook-provider .provider-mark{color:#fff;background-color:#1877f2;font-size:1rem}.microsoft-provider .provider-mark{color:#fff;background-color:#17211f;border-radius:4px;font-size:.58rem}.email-provider{background:var(--color-surface);color:var(--color-ink);border-color:var(--border-color);box-shadow:none}.email-provider:hover:not(:disabled){color:var(--color-primary-dark);background:var(--color-primary-soft)}.email-provider .provider-mark,.guest-provider .provider-mark{color:var(--color-primary-dark);border:1px solid #2f7d6b29}.guest-provider{color:var(--color-primary-dark);box-shadow:none;background:linear-gradient(135deg,#2f7d6b1f,#fffffff0);border-color:#2f7d6b3d}.guest-provider:hover:not(:disabled){color:#fff;background:var(--color-primary)}.temporary-auth-card{border-color:#2f7d6b52;box-shadow:0 22px 45px #2f7d6b1f}.auth-temp-status{border-radius:var(--radius-sm);background:var(--color-primary-soft);color:var(--color-primary-dark);border:1px solid #2f7d6b33;grid-template-columns:auto 1fr;gap:.65rem;margin:.75rem 0;padding:.75rem;display:grid}.auth-temp-status svg{margin-top:.1rem}.auth-temp-status strong,.auth-temp-status span{display:block}.auth-temp-status strong{color:var(--color-ink);margin-bottom:.12rem;font-size:.86rem}.auth-temp-status span{color:var(--text-muted);font-size:.78rem;line-height:1.35}.email-auth-panel{border-radius:var(--radius-sm);background:#ffffffb8;border:1px solid #2f7d6b2e;gap:.65rem;margin-top:.75rem;padding:.85rem;display:grid}.email-auth-tabs{background:var(--color-canvas);border:1px solid var(--border-color);border-radius:999px;grid-template-columns:1fr 1fr;padding:.2rem;display:grid}.email-auth-tabs button{color:var(--text-muted);cursor:pointer;background:0 0;border:0;border-radius:999px;padding:.45rem .6rem;font-size:.78rem;font-weight:850}.email-auth-tabs button.active{background:var(--color-primary);color:#fff;box-shadow:0 8px 18px #2f7d6b2e}.auth-form-grid{gap:.55rem;display:grid}.auth-field{gap:.32rem;display:grid}.auth-field span{color:var(--text-muted);align-items:center;gap:.35rem;font-size:.74rem;font-weight:850;display:inline-flex}.auth-field input{border:1px solid var(--border-color);border-radius:var(--radius-sm);background:var(--color-surface);width:100%;min-height:2.65rem;color:var(--color-ink);font:inherit;padding:.65rem .8rem}.auth-field input:focus{border-color:var(--color-primary);outline:3px solid #2f7d6b1f}.auth-email-submit{width:100%}.auth-form-helper{text-align:center;min-height:1.15rem;color:var(--text-muted);font-size:.76rem}.auth-form-caution{color:var(--color-amber);margin-bottom:.35rem;font-weight:750;line-height:1.35;display:block}.auth-form-helper button{color:var(--color-primary);font:inherit;cursor:pointer;background:0 0;border:0;font-weight:800}.auth-secondary-link{text-align:center;color:var(--color-primary);margin-top:.55rem;font-size:.875rem;font-weight:600;display:block}.auth-trust-note{color:var(--text-muted);text-align:center;margin-top:.55rem;font-size:.76rem;line-height:1.35}.auth-free-list--card{border-radius:var(--radius-sm);background:var(--color-primary-soft);border:1px solid #0f766e24;grid-template-columns:repeat(2,minmax(0,1fr));gap:.3rem .5rem;margin-top:.9rem;padding:.75rem;display:grid}.auth-benefits{color:var(--text-muted);gap:.65rem;margin:1.25rem 0 1.5rem;font-size:.9rem;display:grid}.onboarding-shell{background:radial-gradient(circle at 20% 15%, #0f766e24, transparent 28%), linear-gradient(180deg, #f7faf9 0%, var(--color-canvas) 100%);justify-content:center;align-items:center;min-height:100vh;padding:2rem;display:flex}.onboarding-card{grid-template-columns:.95fr 1.05fr;align-items:stretch;gap:1.25rem;width:min(1120px,100%);display:grid}.onboarding-copy{border-radius:var(--radius);color:#eef8f5;background:linear-gradient(160deg, var(--color-sidebar) 0%, var(--color-sidebar-2) 58%, #0a1514 100%);box-shadow:var(--shadow-raised);padding:2.25rem}.onboarding-copy .eyebrow{color:#a7f3d0}.onboarding-copy h1{letter-spacing:-.045em;margin-bottom:1rem;font-size:clamp(2rem,4vw,3.1rem);line-height:1.05}.onboarding-copy p{color:#bfd1cb;font-size:1rem;line-height:1.7}.onboarding-promise-grid{gap:.75rem;margin-top:1.75rem;display:grid}.onboarding-promise-grid div{border-radius:var(--radius);background-color:#edf4f114;border:1px solid #d7e1dd24;grid-template-columns:auto 1fr;gap:.2rem .65rem;padding:.95rem;display:grid}.onboarding-promise-grid svg{color:#a7f3d0;grid-row:span 2}.onboarding-promise-grid span{color:#bfd1cb;font-size:.88rem}.onboarding-form-card{flex-direction:column;justify-content:center;display:flex}.onboarding-form{gap:1rem;margin:1.25rem 0;display:grid}.onboarding-form label,.onboarding-label{color:var(--text-muted);gap:.45rem;font-size:.86rem;font-weight:700;display:grid}.onboarding-input{border-radius:var(--radius-sm);border:1px solid var(--border-color);width:100%;min-height:42px;color:var(--color-ink);font:inherit;background-color:#fff;padding:0 .8rem}.range-row{border-radius:var(--radius);border:1px solid var(--border-color);background-color:var(--color-surface-alt);grid-template-columns:1fr auto;align-items:center;gap:1rem;padding:.75rem;display:grid}.range-row input{accent-color:var(--color-primary)}.range-row strong{color:var(--color-primary-dark);font-family:IBM Plex Mono,monospace}.choice-grid{grid-template-columns:repeat(3,1fr);gap:.55rem;display:grid}.choice-card{border-radius:var(--radius);border:1px solid var(--border-color);min-height:50px;color:var(--text-muted);cursor:pointer;background-color:#fff;padding:.6rem;font-weight:700}.choice-card.active{color:var(--color-primary-dark);background-color:var(--color-primary-soft);border-color:#0f766e5c}.onboarding-plan-preview{border-radius:var(--radius);background-color:var(--color-primary-soft);color:var(--color-primary-dark);border:1px solid #0f766e3d;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1rem;padding:.85rem .95rem;display:flex}.onboarding-plan-preview div{align-items:center;gap:.5rem;display:flex}.onboarding-plan-preview span{font-family:IBM Plex Mono,monospace;font-size:.9rem;font-weight:700}.welcome-modal-backdrop{z-index:50;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background-color:#10201e75;justify-content:center;align-items:center;padding:1.5rem;display:flex;position:fixed;inset:0}.welcome-modal{border-radius:var(--radius);background:linear-gradient(135deg, #0f766e1c, transparent 42%), var(--color-surface);border:1px solid #d7e1dde6;width:min(620px,100%);padding:1.75rem;position:relative;box-shadow:0 24px 70px #10201e3d}.welcome-modal h2{letter-spacing:-.04em;max-width:15ch;margin-bottom:.75rem;font-size:clamp(1.8rem,4vw,2.5rem);line-height:1.05}.modal-close-btn{border:1px solid var(--border-color);border-radius:var(--radius-sm);width:34px;height:34px;color:var(--text-muted);cursor:pointer;background-color:#ffffffc7;justify-content:center;align-items:center;display:inline-flex;position:absolute;top:1rem;right:1rem}.welcome-step-list{gap:.75rem;margin:1.35rem 0;display:grid}.welcome-step-list div{border-radius:var(--radius);background-color:#ffffffc7;border:1px solid #5f6f6a29;grid-template-columns:auto 1fr;gap:.15rem .7rem;padding:.9rem;display:grid}.welcome-step-list span{color:#fff;background-color:var(--color-primary);border-radius:50%;grid-row:span 2;justify-content:center;align-items:center;width:28px;height:28px;font-family:IBM Plex Mono,monospace;font-size:.78rem;font-weight:800;display:inline-flex}.welcome-step-list p{color:var(--text-muted);font-size:.88rem;line-height:1.45}.loading-spinner{color:var(--text-muted);flex-direction:column;justify-content:center;align-items:center;gap:1rem;padding:4rem 2rem;display:flex}.spinner-ring{border:3px solid var(--border-color);border-top-color:var(--exam-primary);border-radius:50%;width:36px;height:36px;animation:.85s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.chapter-study{max-width:860px;margin:0 auto;padding:2rem 2rem 4rem}.chapter-study-loading,.chapter-study-empty{min-height:40vh;color:var(--text-muted);flex-direction:column;justify-content:center;align-items:center;gap:.5rem;font-size:.9rem;display:flex}.chapter-study-spinner{border:3px solid var(--color-line);border-top-color:var(--color-primary);border-radius:50%;width:28px;height:28px;animation:.7s linear infinite spin}.chapter-study-header{margin-bottom:2rem}.chapter-study-breadcrumb{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;align-items:center;gap:.35rem;margin-bottom:.5rem;font-size:.78rem;display:flex}.chapter-study-title{color:var(--color-ink);margin:0 0 1.25rem;font-size:1.45rem;font-weight:700;line-height:1.25}.chapter-study-tabs{border-bottom:1px solid var(--color-line);gap:.25rem;padding-bottom:0;display:flex}.chapter-tab{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-bottom:2px solid #0000;border-radius:0;align-items:center;gap:.4rem;margin-bottom:-1px;padding:.55rem 1rem;font-size:.85rem;font-weight:500;transition:color .15s,border-color .15s;display:flex}.chapter-tab:hover{color:var(--color-ink)}.chapter-tab.active{color:var(--color-primary);border-bottom-color:var(--color-primary)}.chapter-tab-count{background:var(--color-primary-soft);color:var(--color-primary);text-align:center;border-radius:99px;min-width:18px;padding:.05rem .4rem;font-size:.7rem;font-weight:600}.concept-list{flex-direction:column;gap:1rem;padding-top:1.5rem;display:flex}.concept-card{background:var(--color-surface);border:1px solid var(--color-line);border-radius:10px;gap:1rem;padding:1.25rem 1.4rem;transition:box-shadow .15s;display:flex}.concept-card:hover{box-shadow:0 2px 8px #0000000f}.concept-card-index{background:var(--color-primary-soft);width:26px;height:26px;color:var(--color-primary);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;margin-top:.1rem;font-size:.72rem;font-weight:700;display:flex}.concept-card-body{flex:1;min-width:0}.concept-card-title{color:var(--color-ink);margin:0 0 .6rem;font-size:1rem;font-weight:600}.concept-card-summary{color:var(--text-muted);font-size:.875rem;line-height:1.65}.concept-card-summary p{margin:0 0 .5rem}.concept-card-summary p:last-child{margin-bottom:0}.concept-card-latex{background:var(--color-canvas);border:1px solid var(--color-line);text-align:center;border-radius:6px;margin-top:.85rem;padding:.75rem 1rem;overflow-x:auto}.cheatsheet-wrap{padding-top:1.5rem}.cheatsheet-md{color:var(--color-ink);font-size:.875rem;line-height:1.6}.cheatsheet-md table{border-collapse:collapse;width:100%;margin-bottom:1rem;font-size:.83rem}.cheatsheet-md thead tr{background:var(--color-surface-alt)}.cheatsheet-md th{text-align:left;text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted);border-bottom:2px solid var(--color-line);padding:.6rem .85rem;font-size:.78rem;font-weight:600}.cheatsheet-md td{border-bottom:1px solid var(--color-line);vertical-align:top;padding:.65rem .85rem;line-height:1.55}.cheatsheet-md tr:last-child td{border-bottom:none}.cheatsheet-md tr:hover td{background:var(--color-canvas)}.cheatsheet-md strong{color:var(--color-ink);font-weight:600}.cheatsheet-md td .katex-display{margin:.25rem 0}.cheatsheet-md td .katex{font-size:.95em}.cheatsheet-card-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1rem;display:grid}.cheatsheet-card{border-radius:var(--radius);border:1px solid var(--color-line);background:linear-gradient(135deg, #0f766e0a, transparent 48%), var(--bg-panel);box-shadow:var(--shadow-card);flex-direction:column;gap:.85rem;padding:1.15rem;display:flex}.cheatsheet-card-kicker{color:var(--exam-primary);letter-spacing:.12em;text-transform:uppercase;font-family:IBM Plex Mono,monospace;font-size:.68rem;font-weight:800}.cheatsheet-card h2{color:var(--color-ink);font-size:1.05rem;font-weight:800;line-height:1.35}.cheatsheet-card-section{color:var(--text-muted);border-top:1px solid #5f6f6a29;padding-top:.75rem;font-size:.9rem;line-height:1.65}.cheatsheet-card-section p{margin:0 0 .55rem}.cheatsheet-card-section p:last-child{margin-bottom:0}.cheatsheet-card-label{color:var(--color-ink);letter-spacing:.08em;text-transform:uppercase;margin-bottom:.35rem;font-size:.74rem;font-weight:800}.trap-section{border-radius:var(--radius-sm);background-color:#f8ead159;border:1px solid #b7791f29;padding:.75rem}.trap-section .cheatsheet-card-label{color:var(--color-amber)}.cheatsheet-card .katex-display{margin:.35rem 0;overflow-x:auto}.cheatsheet-card .katex{white-space:normal}.report-dialog-backdrop{z-index:80;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background-color:#0e1d1b6b;justify-content:center;align-items:center;padding:1rem;display:flex;position:fixed;inset:0}.report-dialog{flex-direction:column;gap:1rem;width:min(560px,100%);max-height:calc(100vh - 2rem);display:flex;overflow-y:auto}.report-dialog-header{justify-content:space-between;align-items:flex-start;gap:1rem;display:flex}.report-dialog-header .icon-btn{border-color:var(--color-line);color:var(--text-muted)}.report-dialog-header .icon-btn:hover{color:var(--color-ink);background-color:var(--color-surface-alt)}.report-type-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:.5rem;display:grid}.report-type-option{border:1px solid var(--color-line);border-radius:var(--radius-sm);color:var(--text-muted);cursor:pointer;padding:.65rem .75rem;font-weight:700;transition:border-color .14s,background-color .14s,color .14s}.report-type-option input{margin-right:.45rem}.report-type-option.active{background-color:var(--color-primary-soft);color:var(--color-primary-dark);border-color:#0f766e80}.form-field{color:var(--color-ink);gap:.35rem;font-weight:700;display:grid}.form-field textarea{resize:vertical;border:1px solid var(--color-line);border-radius:var(--radius-sm);width:100%;color:var(--color-ink);background-color:var(--color-surface-alt);padding:.75rem;font-size:.95rem;line-height:1.5}.report-status{border-radius:var(--radius-sm);background-color:var(--color-primary-soft);color:var(--color-primary-dark);padding:.65rem .75rem;font-weight:700}.report-status.error{background-color:var(--color-danger-soft);color:var(--color-danger)}.report-thank-you{text-align:center;justify-items:center;gap:.75rem;padding:1rem .5rem .25rem;display:grid}.report-thank-you-icon{background-color:var(--color-primary-soft);width:3rem;height:3rem;color:var(--color-primary-dark);border-radius:999px;place-items:center;font-size:1.5rem;font-weight:900;display:grid}.report-thank-you h3{color:var(--color-ink);margin:0}.report-thank-you p{max-width:32rem;color:var(--text-muted);margin:0;line-height:1.6}.report-dialog-actions{justify-content:flex-end;gap:.75rem;display:flex}.upgrade-nudge-dialog{gap:1rem;width:min(640px,100%);max-height:calc(100vh - 2rem);display:grid;overflow-y:auto}.upgrade-nudge-dialog h2{margin:.2rem 0 0}.upgrade-nudge-plan-row{grid-template-columns:repeat(2,minmax(0,1fr));gap:.75rem;display:grid}.upgrade-nudge-plan{border-radius:var(--radius-sm);color:var(--color-ink);cursor:pointer;text-align:left;background:linear-gradient(135deg,#f0fdf4c2,#ffffffeb);border:1px solid #0f766e38;gap:.25rem;padding:.85rem;transition:transform .14s,box-shadow .14s,border-color .14s;display:grid}.upgrade-nudge-plan:hover:not(:disabled){border-color:#0f766e80;transform:translateY(-1px);box-shadow:0 12px 26px #0f201c1a}.upgrade-nudge-plan:disabled{cursor:wait;opacity:.72}.upgrade-nudge-plan span{color:var(--color-primary-dark);font-weight:900}.upgrade-nudge-plan strong{font-size:1rem}.upgrade-nudge-plan small{color:var(--text-muted);font-size:.78rem}.upgrade-nudge-actions{flex-wrap:wrap;justify-content:flex-end;gap:.7rem;display:flex}.narrow-page{max-width:760px}.admin-quality-hero{justify-content:space-between;align-items:center;gap:1.25rem;display:flex}.admin-quality-hero p{max-width:760px}.admin-locked-card{align-items:flex-start;gap:1rem;display:flex}.admin-locked-card svg{color:var(--color-amber);flex-shrink:0}.admin-report-tabs{flex-wrap:wrap;gap:.6rem;margin:1rem 0;display:flex}.admin-report-tab{border:1px solid var(--color-line);background-color:var(--color-surface);color:var(--text-muted);cursor:pointer;border-radius:999px;align-items:center;gap:.45rem;padding:.55rem .8rem;font-weight:800;display:inline-flex}.admin-report-tab.active{background-color:var(--color-primary-soft);color:var(--color-primary-dark);border-color:#0f766e80}.admin-report-tab span{background-color:#0f766e1f;border-radius:999px;place-items:center;min-width:1.45rem;height:1.45rem;font-size:.78rem;display:inline-grid}.admin-report-list{gap:1rem;display:grid}.admin-empty-state{text-align:center}.admin-report-card{gap:.9rem;display:grid}.admin-report-card-header{justify-content:space-between;align-items:flex-start;gap:1rem;display:flex}.admin-report-card-header h2{margin:.25rem 0 0}.admin-status-pill{text-transform:uppercase;letter-spacing:.05em;border-radius:999px;flex-shrink:0;padding:.35rem .7rem;font-size:.78rem;font-weight:900}.status-new{background-color:var(--color-danger-soft);color:var(--color-danger)}.status-reviewing{background-color:var(--color-amber-soft);color:var(--color-amber)}.status-fixed{background-color:var(--color-primary-soft);color:var(--color-primary-dark)}.status-ignored{background-color:var(--color-surface-alt);color:var(--text-muted)}.admin-question-preview{color:var(--color-ink);margin:0;line-height:1.65}.admin-report-context{flex-wrap:wrap;gap:.5rem;display:flex}.admin-report-context span{background-color:var(--color-surface-alt);color:var(--text-muted);border-radius:999px;padding:.35rem .65rem;font-size:.82rem;font-weight:800}.admin-report-note{border-left:3px solid var(--color-primary);border-radius:var(--radius-sm);background-color:var(--color-primary-soft);padding:.75rem .9rem}.admin-report-note p{color:var(--color-ink);margin:.25rem 0 0;line-height:1.55}.admin-report-details{border-top:1px solid var(--color-line);padding-top:.75rem}.admin-report-details summary{cursor:pointer;color:var(--color-primary-dark);font-weight:800}.admin-report-detail-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:.75rem;margin-top:.75rem;display:grid}.admin-report-detail-grid div{gap:.2rem;min-width:0;display:grid}.admin-report-detail-grid strong{color:var(--color-ink)}.admin-report-detail-grid span{overflow-wrap:anywhere;color:var(--text-muted);font-size:.88rem}.admin-report-actions{flex-wrap:wrap;gap:.55rem;display:flex}.support-page{flex-direction:column;gap:.85rem;height:calc(100vh - 4.5rem);max-height:calc(100vh - 4.5rem);display:flex}.support-hero{border:1px solid var(--color-line);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);background:radial-gradient(circle at 0 0,#2f7d6b24,#0000 30%),linear-gradient(135deg,#e6f1fbe0,#fffffff2);flex-shrink:0;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:1rem;padding:1rem 1.35rem;display:grid}.support-hero h1{color:#101827;letter-spacing:-.04em;margin:.2rem 0 .3rem;font-size:clamp(1.5rem,3vw,2rem);font-weight:850;line-height:1.05}.support-hero p{color:#4a5568;max-width:760px;font-size:.9rem;line-height:1.4}.support-response-card{border-radius:var(--radius-md);min-width:240px;color:var(--color-primary-dark);background:#ffffffc2;border:1px solid #2f7d6b2e;align-items:center;gap:.75rem;padding:.85rem 1rem;display:flex}.support-response-card strong,.support-response-card span{display:block}.support-response-card span{color:var(--text-muted);font-size:.84rem}.support-layout{flex:1;grid-template-columns:minmax(280px,.82fr) minmax(420px,1.18fr);align-items:stretch;gap:1rem;min-height:0;display:grid}.support-faq-card,.support-form-card{border-radius:var(--radius-lg);padding:1.25rem 1.5rem;overflow-y:auto}.support-form-card{flex-direction:column;display:flex}.support-card-heading{flex-shrink:0;align-items:flex-start;gap:.75rem;margin-bottom:.85rem;display:flex}.support-card-heading svg{color:#2563eb;flex:none;margin-top:.2rem}.support-card-heading h2{color:#101827;letter-spacing:-.04em;margin:0;font-size:clamp(1.55rem,2.8vw,2rem);font-weight:850;line-height:1.05}.support-card-heading p{color:var(--text-muted);margin:.35rem 0 0}.support-faq-list{gap:.55rem;display:grid}.support-faq-list details{border-radius:var(--radius-sm);background:#f8fbff;border:1px solid #56678429;overflow:hidden}.support-faq-list summary{cursor:pointer;color:#24324a;padding:.85rem 1rem;font-weight:800;line-height:1.35;list-style:none}.support-faq-list summary::-webkit-details-marker{display:none}.support-faq-list summary:after{content:"+";float:right;color:#8b9ab0;font-weight:900}.support-faq-list details[open] summary:after{content:"-"}.support-faq-list p{color:var(--text-muted);border-top:1px solid #5667841f;margin:0;padding:.85rem 1rem 1rem;font-size:.92rem;line-height:1.55}.support-direct-email{border-radius:var(--radius-sm);background:var(--color-primary-soft);color:var(--color-primary-dark);align-items:center;gap:.65rem;margin-top:1rem;padding:.85rem 1rem;display:flex}.support-direct-email strong,.support-direct-email a{display:block}.support-direct-email a{color:var(--color-primary-dark);text-underline-offset:3px;font-weight:850;text-decoration:underline;text-decoration-thickness:1px}.support-form{flex-direction:column;flex:1;gap:.75rem;min-height:0;display:flex}.support-form label{color:#324158;gap:.25rem;font-size:.88rem;font-weight:850;display:grid}.support-form label:has(textarea){flex-direction:column;flex:1;min-height:0;display:flex}.support-form label:has(textarea) textarea{flex:1;min-height:0}.support-form input,.support-form select,.support-form textarea{color:#101827;background:#fff;border:1px solid #d9e2ef;border-radius:14px;width:100%;padding:.65rem .9rem;font-size:.95rem;line-height:1.45;transition:border-color .14s,box-shadow .14s}.support-form input::placeholder,.support-form textarea::placeholder{color:#98a2b3}.support-form input:focus,.support-form select:focus,.support-form textarea:focus{border-color:#2f6fed;outline:none;box-shadow:0 0 0 4px #2f6fed1f}.support-form textarea{resize:none;min-height:80px}.support-hidden-field{display:none!important}.support-status{border-radius:var(--radius-sm);align-items:flex-start;gap:.55rem;padding:.8rem .9rem;font-weight:800;line-height:1.45;display:flex}.support-status.success{background:var(--color-primary-soft);color:var(--color-primary-dark)}.support-status.error{background:var(--color-danger-soft);color:var(--color-danger)}.support-status svg{flex-shrink:0;margin-top:.1rem}.support-submit-btn{border-radius:12px;flex-shrink:0;min-height:2.75rem;font-size:.95rem}.legal-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem;display:grid}.legal-card h2,.legal-note h2{margin-bottom:.7rem}.legal-note{justify-content:space-between;align-items:center;gap:1rem;display:flex}.concept-lab-book-tabs{flex-wrap:wrap;gap:.5rem;display:flex}.concept-lab-access-note{border:1px solid var(--color-line);border-left:4px solid var(--color-primary);border-radius:var(--radius-md);color:var(--text-muted);background:linear-gradient(135deg,#d2f7ecb8,#ffffffeb);padding:.95rem 1.05rem;line-height:1.6}.concept-lab-access-note strong{color:var(--color-ink)}.concept-lab-workbench{scroll-margin-top:1.25rem;transition:border-color .18s,box-shadow .18s}.concept-lab-workbench:focus{border-color:#2f7d6b75;outline:none;box-shadow:0 18px 42px #2f7d6b1f}.concept-tool-card{border:1px solid var(--color-line);border-radius:var(--radius-md);background:var(--card-bg);cursor:pointer;text-align:left;gap:.2rem;width:100%;min-height:9.1rem;padding:.95rem 1rem;transition:border-color .15s,box-shadow .15s,transform .15s,background .15s;display:grid;position:relative}.concept-tool-card:hover{border-color:var(--concept-accent);box-shadow:var(--shadow-soft);transform:translateY(-1px)}.concept-tool-card.active{border:2px solid var(--concept-accent);background:linear-gradient(135deg, #fffffff5, var(--surface-alt))}.concept-tool-card.locked{background:linear-gradient(135deg,#ffffffeb,#f7f2e8cc)}.concept-tool-card.locked:after{content:"";border-radius:calc(var(--radius-md) - .25rem);pointer-events:none;border:1px dashed #b8791647;position:absolute;inset:.45rem}.concept-tool-meta{color:var(--concept-accent);letter-spacing:.05em;text-transform:uppercase;justify-content:space-between;align-items:center;gap:.6rem;margin-bottom:.35rem;font-size:.68rem;font-weight:800;display:flex}.concept-free-badge,.concept-lock-badge{letter-spacing:0;text-transform:none;white-space:nowrap;border-radius:999px;align-items:center;gap:.25rem;padding:.25rem .5rem;font-size:.68rem;display:inline-flex}.concept-free-badge{background:var(--color-primary-soft);color:var(--color-primary-dark)}.concept-lock-badge{background:var(--color-warn-soft);color:var(--color-warn-dark)}.concept-lab-locked-panel{border:1px solid var(--color-line);border-radius:var(--radius-lg);background:linear-gradient(135deg,#f7f2e8bf,#fffffff5);align-items:flex-start;gap:1rem;padding:1.25rem;display:flex}.concept-lab-locked-panel h3{margin:0 0 .35rem}.concept-lab-locked-panel p{color:var(--text-muted);margin:0 0 1rem;line-height:1.6}.concept-lab-locked-icon{background:var(--color-warn-soft);color:var(--color-warn-dark);border-radius:1rem;flex:none;justify-content:center;align-items:center;width:3rem;height:3rem;display:inline-flex}@media (width<=1024px){.app-container{flex-direction:column}.sidebar{width:100%;height:auto;min-width:unset;flex-flow:wrap;gap:.75rem;padding:1rem;position:static}.sidebar-inner{flex-flow:wrap;gap:.5rem;width:100%;padding:0}.sidebar-title{border-bottom:none;width:100%;margin-bottom:0;padding-bottom:0}.sidebar-account{width:100%}.sidebar-nav{flex-flow:wrap;gap:.25rem}.sidebar-upgrade-strip{border-top:none;width:100%;padding-top:0}.main-content{padding:1.25rem}.two-up,.three-up,.four-up,.legal-grid,.support-hero,.support-layout{grid-template-columns:1fr}.support-response-card{width:fit-content}.hero-panel{flex-direction:column}.planner-coach-card,.planner-command-grid,.planner-checkin-card{grid-template-columns:1fr}.planner-checkin-stats{justify-items:start}.dashboard-coach-card,.dashboard-gap-grid{grid-template-columns:1fr}.dashboard-share-card{flex-direction:column;align-items:flex-start}.premium-command-panel{grid-template-columns:1fr;align-items:flex-start}.premium-command-actions{justify-content:flex-start}.premium-benefit-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.premium-next-steps{flex-direction:column;align-items:flex-start}.founder-offer-banner{grid-template-columns:1fr}.founder-offer-actions{justify-content:flex-start}.practice-workspace{grid-template-columns:1fr}.practice-feedback-pane{max-height:none;position:static;overflow:visible}.mission-card{flex-direction:column;align-items:flex-start}.metric-pill-row{flex-direction:row}.auth-hero-card,.onboarding-card,.auth-proof-strip,.auth-model-strip,.auth-plan-columns{grid-template-columns:1fr}.auth-copy,.auth-card,.onboarding-copy,.onboarding-form-card{padding:1.5rem}}@media (width<=640px){.metric-pill-row{gap:.4rem}.metric-pill{min-width:70px}.dashboard-section-heading{align-items:flex-start}.dashboard-topic-row,.dashboard-mistake-row{grid-template-columns:1fr;padding:1rem 1.15rem}.dashboard-topic-actions{flex-flow:wrap;align-items:flex-start;max-width:none}.dashboard-mistake-count{justify-self:flex-start}.dashboard-share-button{width:100%}.premium-command-panel{padding:1.5rem}.premium-benefit-grid{grid-template-columns:1fr}.support-hero h1{font-size:clamp(2.4rem,12vw,4rem)}.support-response-card{width:100%}.support-faq-card,.support-form-card{padding:1.25rem}.planner-coach-card,.planner-checkin-card{padding:1rem}.planner-coach-heading,.planner-card-heading.horizontal,.schedule-health-header{flex-direction:column;align-items:flex-start}.planner-coach-actions .btn,.planner-control-actions .btn{width:100%}.schedule-progress-labels{flex-direction:column;gap:.25rem}.auth-shell{align-items:flex-start;padding:1rem}.auth-shell:before{display:none}.auth-copy h1{max-width:none}.auth-value-grid,.auth-free-list,.auth-mini-dashboard{grid-template-columns:1fr}.premium-command-actions,.premium-next-steps .inline-status{width:100%}.premium-command-actions .btn,.premium-next-steps .btn{justify-content:center;width:100%}.exam-control-bar{flex-direction:column;align-items:stretch;gap:.75rem}.exam-control-bar>*{justify-content:center;width:100%}.quiz-sticky-nav{grid-template-columns:1fr;padding:.5rem .75rem;display:grid}.quiz-nav-left,.quiz-nav-actions{width:100%}.quiz-nav-left .btn,.quiz-nav-actions .btn{flex:1}.quiz-result-badge{justify-content:center;min-width:8rem}.quiz-nav-hint{display:none}.quiz-nav-btn{min-width:64px}.btn{justify-content:center}.question-action-row{justify-content:flex-start}.report-type-grid{grid-template-columns:1fr}.flashcard-hero,.flashcard-locked-card,.concept-lab-locked-panel{flex-direction:column;align-items:stretch}.flashcard-container{height:430px}.concept-tool-card{min-height:auto}.concept-tool-meta{flex-direction:column;align-items:flex-start}.report-dialog-actions,.upgrade-nudge-actions,.legal-note{flex-direction:column;align-items:stretch}.upgrade-nudge-plan-row{grid-template-columns:1fr}.admin-quality-hero,.admin-report-card-header{flex-direction:column}.admin-report-detail-grid{grid-template-columns:1fr}.onboarding-shell{padding:1rem}.choice-grid{grid-template-columns:1fr}.onboarding-plan-preview{flex-direction:column;align-items:flex-start}.chapter-study{padding:1rem}.cheatsheet-card-grid{grid-template-columns:1fr}.cheatsheet-md table{font-size:.78rem}.cheatsheet-md th,.cheatsheet-md td{padding:.5rem .6rem}}@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2)format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff)format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2)format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff)format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2)format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff)format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2)format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff)format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2)format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff)format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2)format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff)format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2)format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff)format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2)format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff)format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2)format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff)format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2)format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff)format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2)format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff)format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2)format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff)format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2)format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff)format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2)format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff)format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2)format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff)format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2)format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff)format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2)format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff)format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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)format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff)format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2)format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff)format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2)format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff)format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf)format("truetype")}.katex{text-indent:0;text-rendering:auto;font:1.21em/1.2 KaTeX_Main,Times New Roman,serif;position:relative}.katex *{border-color:currentColor;-ms-high-contrast-adjust:none!important}.katex .katex-version:after{content:"0.16.47"}.katex .katex-mathml{clip-path:inset(50%);border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.katex .katex-html>.newline{display:block}.katex .base{white-space:nowrap;width:min-content;position:relative}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;table-layout:fixed;display:inline-table}.katex .vlist-r{display:table-row}.katex .vlist{vertical-align:bottom;display:table-cell;position:relative}.katex .vlist>span{height:0;display:block;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{width:0;overflow:hidden}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{vertical-align:bottom;width:2px;min-width:2px;font-size:1px;display:table-cell}.katex .vbox{flex-direction:column;align-items:baseline;display:inline-flex}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{flex-direction:row;display:inline-flex}.katex .thinbox{width:0;max-width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .smash{line-height:0;display:inline}.katex .clap,.katex .llap,.katex .rlap{width:0;position:relative}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .hdashline{border-bottom-style:dashed;width:100%;display:inline-block}.katex .sqrt>.root{margin-left:.277778em;margin-right:-.555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.833333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.16667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.33333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.66667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.45667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.14667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.714286em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.857143em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.14286em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.28571em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.42857em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.71429em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.05714em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.46857em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.96286em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.55429em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.11111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.33333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.30444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.76444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.416667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.583333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.833333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.72833em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.07333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.347222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.416667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.486111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.694444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.833333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.44028em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.72778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.289352em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.347222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.405093em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.520833em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.578704em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.694444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.833333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.20023em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.43981em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.24108em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.289296em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.385728em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.433944em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.48216em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.578592em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.694311em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.833173em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.19961em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.200965em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.241158em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.281351em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.321543em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.361736em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.401929em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.482315em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.694534em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.833601em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{width:.12em;display:inline-block}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{min-width:1px;display:inline-block}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;height:inherit;width:100%;display:block;position:absolute}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;min-width:0;max-width:none;min-height:0;max-height:none}.katex .stretchy{width:100%;display:block;position:relative;overflow:hidden}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{width:100%;position:relative;overflow:hidden}.katex .halfarrow-left{width:50.2%;position:absolute;left:0;overflow:hidden}.katex .halfarrow-right{width:50.2%;position:absolute;right:0;overflow:hidden}.katex .brace-left{width:25.1%;position:absolute;left:0;overflow:hidden}.katex .brace-center{width:50%;position:absolute;left:25%;overflow:hidden}.katex .brace-right{width:25.1%;position:absolute;right:0;overflow:hidden}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{box-sizing:border-box;border:.04em solid}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{box-sizing:border-box;border-top:.049em solid;border-right:.049em solid;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{text-align:left;display:inline-block;position:absolute;right:calc(50% + .3em)}.katex .cd-label-right{text-align:right;display:inline-block;position:absolute;left:calc(50% + .3em)}.katex-display{text-align:center;margin:1em 0;display:block}.katex-display>.katex{text-align:center;white-space:nowrap;display:block}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{text-align:left;padding-left:2em}body{counter-reset:katexEqnNo mmlEqnNo}
