@import url(https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Space+Grotesk:wght@500;600;700&family=JetBrains+Mono:wght@400;600&display=swap);.footer-paper.MuiPaper-root{background-color:var(--canvas)!important;border-top:1px solid var(--stroke);box-shadow:none!important;color:var(--fg-muted);margin-top:auto;padding:var(--space-6) 0;width:100%}.footer-container{margin:0 auto;max-width:var(--content-max)!important;padding:0 var(--space-6)}.footer-content{width:100%}.footer-grid{grid-gap:var(--space-4);align-items:center;display:grid;gap:var(--space-4);grid-template-columns:1fr auto}.footer-copyright{color:var(--fg-subtle);font-size:.85rem}.footer-links{align-items:center;color:var(--fg-subtle);display:flex;gap:var(--space-3)}.footer-link{color:var(--fg-muted)!important;font-size:.85rem;text-decoration:none!important;transition:color var(--dur-fast) var(--ease)}.footer-link:hover{color:var(--brand-400)!important;text-decoration:none!important}.footer-separator{color:var(--fg-subtle);font-size:.85rem;opacity:.6}@media (max-width:600px){.footer-grid{gap:var(--space-3);grid-template-columns:1fr;text-align:center}.footer-links{flex-wrap:wrap;justify-content:center}.footer-container{padding:0 var(--space-4)}}.header.MuiAppBar-root{backdrop-filter:saturate(160%) blur(12px);-webkit-backdrop-filter:saturate(160%) blur(12px);background-color:color-mix(in srgb,var(--canvas) 80%,#0000);border-bottom:1px solid var(--stroke);box-shadow:none!important;color:var(--fg);height:var(--header-h);justify-content:center;left:0;min-height:var(--header-h);position:fixed!important;right:0;top:0;z-index:1100}.header-toolbar{align-items:center;display:flex;gap:var(--space-3);justify-content:space-between;margin:0 auto;max-width:var(--content-max);min-height:var(--header-h)!important;padding:0 var(--space-5)!important;position:relative;width:100%}.header-left,.header-right{align-items:center;display:flex;gap:var(--space-2)}.header-brand{align-items:center;background:#0000;border:0;border-radius:var(--radius-md);color:var(--fg);cursor:pointer;display:inline-flex;gap:var(--space-3);left:50%;padding:var(--space-1) var(--space-2);position:absolute;top:50%;transform:translate(-50%,-50%);transition:transform var(--dur-fast) var(--ease),background-color var(--dur-fast) var(--ease)}.header-brand:hover{background-color:var(--surface-2);transform:translate(-50%,calc(-50% - 1px))}.header-logo{border-radius:6px;height:32px;object-fit:contain;width:auto}.header-title.MuiTypography-root{color:var(--fg)!important;font-family:var(--font-display)!important;font-size:1.1rem!important;font-weight:700!important;letter-spacing:.03em!important;line-height:1!important;margin:0!important;text-transform:uppercase}.theme-toggle.MuiIconButton-root{border:1px solid var(--stroke);border-radius:var(--radius-md);color:var(--fg-muted);padding:6px}.theme-toggle.MuiIconButton-root:hover{background-color:var(--surface-2);border-color:var(--stroke-strong);color:var(--fg)}.theme-toggle svg{font-size:1.2rem}.header-signin-btn.MuiButton-root{font-size:.9rem!important;padding:.45rem 1rem!important}.header-auth-buttons{align-items:center;display:inline-flex;gap:var(--space-2)}.header-menu-container{display:inline-flex;position:relative}.header-menu-container>.MuiIconButton-root{border:1px solid var(--stroke);border-radius:var(--radius-md);color:var(--fg-muted);padding:6px}.header-menu-container>.MuiIconButton-root:hover{background-color:var(--surface-2);border-color:var(--stroke-strong);color:var(--fg)}.header-menu-container:hover>.MuiIconButton-root{background-color:var(--surface-2);border-color:var(--brand-500);color:var(--brand-400)}.header-menu-container:hover .header-menu{display:block}.header-menu.MuiPaper-root{background-color:var(--surface)!important;border:1px solid var(--stroke);border-radius:var(--radius-md);box-shadow:var(--shadow-md);color:var(--fg)!important;display:none;min-width:220px;padding:.35rem;position:absolute;top:100%;z-index:1200}.header-menu.left{left:0}.header-menu.right{right:0}.menu-item-container{position:relative}.menu-item-container:hover .submenu{display:block}.submenu.MuiPaper-root{background-color:var(--surface)!important;border:1px solid var(--stroke);border-radius:var(--radius-md);box-shadow:var(--shadow-md);color:var(--fg)!important;display:none;left:100%;min-width:200px;padding:.35rem;position:absolute;top:0;z-index:1201}.menu-item.MuiMenuItem-root{align-items:center!important;background-color:initial!important;border-radius:var(--radius-sm);color:var(--fg-muted)!important;display:flex!important;font-size:.92rem;gap:var(--space-4);justify-content:space-between!important;padding:.55rem .75rem!important;position:relative;transition:background-color var(--dur-fast) var(--ease),color var(--dur-fast) var(--ease);white-space:nowrap}.menu-item.MuiMenuItem-root:hover{background-color:var(--surface-2)!important;color:var(--fg)!important}.grade-label{flex:1 1}.grade-progress{background:rgba(var(--brand-rgb),.12);border-radius:var(--radius-pill);color:var(--brand-400);font-size:.85em;font-weight:600;padding:.12rem .5rem}.MuiDialog-paper{background-color:var(--surface)!important;border:1px solid var(--stroke);border-radius:var(--radius-lg)!important}.MuiDialog-paper,.MuiDialogContent-root,.MuiDialogTitle-root{color:var(--fg)!important}.MuiOutlinedInput-notchedOutline{border-color:var(--stroke)!important}.MuiOutlinedInput-root:hover .MuiOutlinedInput-notchedOutline{border-color:var(--stroke-strong)!important}.MuiOutlinedInput-root.Mui-focused .MuiOutlinedInput-notchedOutline{border-color:var(--brand-500)!important}.MuiInputLabel-root{color:var(--fg-muted)!important}.MuiInputLabel-root.Mui-focused{color:var(--brand-500)!important}.MuiInputBase-input{color:var(--fg)!important}@media (max-width:720px){.header-title.MuiTypography-root{display:none}.header-logo{height:28px}.header-signin-btn.MuiButton-root{font-size:.82rem!important;padding:.3rem .6rem!important}.header-signup-btn.MuiButton-root{font-size:.82rem!important;padding:.3rem .65rem!important}.header-toolbar{gap:var(--space-2);padding:0 var(--space-3)!important}.header-brand{padding:var(--space-1)}.header-auth-buttons{gap:var(--space-1)}}@media (max-width:420px){.header-signin-btn.MuiButton-root{font-size:.78rem!important;padding:.28rem .5rem!important}.header-signup-btn.MuiButton-root{font-size:.78rem!important;padding:.28rem .55rem!important}.header-toolbar{padding:0 var(--space-2)!important}.header-left,.header-right,.header-toolbar{gap:var(--space-1)}}@media (max-width:360px){.header-brand{padding:0}.header-logo{height:24px}}.home{color:var(--fg);display:flex;flex-direction:column;gap:var(--space-16);padding-bottom:var(--space-20)}.section-inner{margin:0 auto;max-width:var(--content-max);padding:0 var(--space-6);width:100%}.section-head{margin:0 auto var(--space-10);max-width:640px;text-align:center}.section-kicker{align-items:center;background:rgba(var(--brand-rgb),.1);border:1px solid rgba(var(--brand-rgb),.25);border-radius:var(--radius-pill);color:var(--brand-400);display:inline-flex;font-family:var(--font-sans);font-size:.8rem;font-weight:600;gap:.4em;letter-spacing:.12em;margin-bottom:var(--space-4);padding:.35rem .75rem;text-transform:uppercase}.section-title{color:var(--fg);font-family:var(--font-display);font-size:var(--fs-3xl);font-weight:700;letter-spacing:-.02em;line-height:1.1;margin:0 0 var(--space-3)}.section-lead{color:var(--fg-muted);font-size:var(--fs-lg);line-height:1.6;margin:0}.hero{overflow:hidden;padding:var(--space-16) 0 var(--space-10);position:relative}.hero:before{background:radial-gradient(700px 400px at 15% 10%,rgba(var(--brand-rgb),.22),#0000 60%),radial-gradient(700px 400px at 85% 20%,rgba(var(--accent-rgb),.18),#0000 60%);content:"";height:120%;inset:-10% -10% auto -10%;pointer-events:none;position:absolute;z-index:0}.hero-inner{grid-gap:var(--space-16);align-items:center;display:grid;gap:var(--space-16);grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);margin:0 auto;max-width:var(--content-max);padding:0 var(--space-6);position:relative;width:100%;z-index:1}.hero-copy{min-width:0}.hero-eyebrow{align-items:center;background:rgba(var(--brand-rgb),.1);border:1px solid rgba(var(--brand-rgb),.3);border-radius:var(--radius-pill);color:var(--brand-400);display:inline-flex;font-size:.85rem;font-weight:600;gap:.35em;letter-spacing:.02em;margin-bottom:var(--space-5);padding:.4rem .8rem}.hero-title{font-family:var(--font-display);font-size:var(--fs-4xl);font-weight:700;letter-spacing:-.02em;line-height:1.05;margin:0 0 var(--space-5)}.hero-gradient{-webkit-text-fill-color:#0000;background:var(--gradient-brand);-webkit-background-clip:text;background-clip:text;color:#0000;white-space:nowrap}.hero-subtitle{color:var(--fg-muted);font-size:var(--fs-lg);line-height:1.6;margin:0 0 var(--space-8);max-width:560px}.hero-cta{display:flex;flex-wrap:wrap;gap:var(--space-3);margin-bottom:var(--space-6)}.hero-cta-primary.MuiButton-root{font-size:1rem!important;padding:.8rem 1.5rem!important}.hero-cta-secondary.MuiButton-root{font-size:1rem!important;padding:.8rem 1.4rem!important}.hero-trust{color:var(--fg-subtle);display:flex;flex-wrap:wrap;font-size:.9rem;gap:var(--space-4);list-style:none;margin:0;padding:0}.hero-trust li{align-items:center;display:inline-flex;gap:.4em}.hero-trust li:before{background:var(--brand-500);border-radius:50%;content:"";display:inline-block;height:6px;width:6px}.hero-visual{aspect-ratio:1/1;margin:0 auto;max-width:480px;position:relative;width:100%}.hero-orbit{animation:orbit 14s linear infinite;background:conic-gradient(from 90deg,#0000 0,rgba(var(--brand-rgb),.35) 25%,rgba(var(--accent-rgb),.35) 50%,rgba(var(--brand-rgb),.35) 75%,#0000 100%);border-radius:50%;filter:blur(42px);inset:8%;position:absolute;z-index:0}@keyframes orbit{to{transform:rotate(1turn)}}.hero-card{-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:color-mix(in srgb,var(--surface) 92%,#0000);border:1px solid var(--stroke-strong);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);min-width:220px;padding:1rem 1.25rem;position:absolute;z-index:1}.hero-card-a{animation:floatA 6s ease-in-out infinite;left:6%;top:14%;z-index:3}.hero-card-b{animation:floatB 7s ease-in-out infinite;left:40%;top:58%;z-index:2}.hero-card-c{animation:floatC 8s ease-in-out infinite;right:2%;top:4%;z-index:2}@keyframes floatA{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes floatB{0%,to{transform:translateY(0)}50%{transform:translateY(8px)}}@keyframes floatC{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}.hero-card-label{color:var(--fg-subtle);font-size:.78rem;font-weight:600;letter-spacing:.06em;margin-bottom:.6rem;text-transform:uppercase}.hero-problem{align-items:center;color:var(--fg);display:flex;font-family:var(--font-display);font-size:1.6rem;font-weight:600;gap:.5rem}.hero-problem-sm{font-family:var(--font-mono);font-size:1.05rem}.hero-frac sub,.hero-frac sup{display:inline-block;font-size:.55em}.hero-op{color:var(--fg-muted);padding:0 .15rem}.hero-input{align-items:center;background:rgba(var(--brand-rgb),.08);border:2px dashed var(--brand-500);border-radius:var(--radius-sm);color:var(--brand-400);display:inline-flex;height:2.25rem;justify-content:center;width:2.25rem}.hero-progress{background:var(--surface-2);border-radius:3px;height:6px;margin-top:.9rem;overflow:hidden}.hero-progress span{background:var(--gradient-brand);border-radius:3px;display:block;height:100%}.hero-meta{color:var(--fg-subtle);display:flex;font-size:.8rem;justify-content:space-between;margin-top:.5rem}.hero-time{color:var(--fg-muted);font-family:var(--font-mono)}.hero-chip{background:var(--surface-2);border:1px solid var(--stroke);border-radius:var(--radius-pill);color:var(--fg-muted);display:inline-block;font-size:.78rem;font-weight:600;margin-top:.6rem;padding:.25rem .6rem}.hero-chip-success{background:#22c55e1f;border-color:#22c55e59;color:var(--success)}.grade-ladder .ladder-rows{display:flex;flex-direction:column;gap:var(--space-4);margin:0 auto;max-width:900px}.ladder-row{grid-gap:var(--space-4);align-items:center;background:var(--surface);border:1px solid var(--stroke);border-radius:var(--radius-lg);display:grid;gap:var(--space-4);grid-template-columns:140px 1fr;padding:var(--space-4)}.ladder-label{color:var(--fg);font-size:.95rem;font-weight:600;letter-spacing:.02em}.ladder-items{display:flex;flex-wrap:wrap;gap:var(--space-2)}.ladder-chip{background:var(--surface-2);border:1px solid var(--stroke);border-radius:var(--radius-pill);color:var(--fg);cursor:pointer;font-family:var(--font-sans);font-size:.9rem;font-weight:500;padding:.5rem .9rem;transition:all var(--dur-fast) var(--ease)}.ladder-chip:hover{background:var(--gradient-brand);border-color:#0000;box-shadow:0 6px 14px rgba(var(--brand-rgb),.3);color:#fff;transform:translateY(-2px)}.steps{grid-gap:var(--space-5);display:grid;gap:var(--space-5);grid-template-columns:repeat(3,1fr);list-style:none;margin:0;padding:0}.step{background:var(--surface);border:1px solid var(--stroke);border-radius:var(--radius-lg);padding:var(--space-6);position:relative}.step-num{-webkit-text-fill-color:#0000;background:var(--gradient-brand);-webkit-background-clip:text;background-clip:text;color:#0000;font-size:2.25rem;font-weight:700;letter-spacing:-.02em;line-height:1;margin-bottom:var(--space-3)}.step-num,.step-title{font-family:var(--font-display)}.step-title{color:var(--fg);font-size:var(--fs-lg);font-weight:600;margin:0 0 var(--space-2)}.step-desc{color:var(--fg-muted);font-size:.95rem;line-height:1.6;margin:0}.features-grid{grid-gap:var(--space-5);display:grid;gap:var(--space-5);grid-template-columns:repeat(3,1fr)}.feature-card{background:var(--surface);border:1px solid var(--stroke);border-radius:var(--radius-lg);overflow:hidden;padding:var(--space-6);position:relative;transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}.feature-card:before{background:radial-gradient(circle at 0 0,rgba(var(--brand-rgb),.35),#0000 70%);content:"";height:40px;left:0;opacity:.6;pointer-events:none;position:absolute;top:0;width:40px}.feature-card:hover{border-color:rgba(var(--brand-rgb),.5);box-shadow:var(--shadow-md);transform:translateY(-4px)}.feature-icon{align-items:center;background:rgba(var(--brand-rgb),.12);border:1px solid rgba(var(--brand-rgb),.25);border-radius:12px;color:var(--brand-400);display:inline-flex;height:44px;justify-content:center;margin-bottom:var(--space-4);width:44px}.feature-icon svg{font-size:22px}.feature-title{color:var(--fg);font-family:var(--font-display);font-size:var(--fs-lg);font-weight:600;margin:0 0 var(--space-2)}.feature-description{color:var(--fg-muted);font-size:.95rem;line-height:1.6;margin:0}.teachers-card{grid-gap:var(--space-10);align-items:center;background:var(--surface);border:1px solid var(--stroke);border-radius:var(--radius-xl);display:grid;gap:var(--space-10);grid-template-columns:1fr 1fr;overflow:hidden;padding:var(--space-10);position:relative}.teachers-card:before{background:radial-gradient(closest-side,rgba(var(--accent-rgb),.18),#0000 70%);content:"";height:140%;inset:-40% -10% auto auto;pointer-events:none;position:absolute;width:60%}.teachers-copy{position:relative;z-index:1}.teachers-copy .section-kicker{margin-bottom:var(--space-3)}.teachers-copy .section-lead,.teachers-copy .section-title{text-align:left}.teachers-bullets{display:flex;flex-direction:column;gap:var(--space-3);list-style:none;margin:var(--space-6) 0;padding:0}.teachers-bullets li{align-items:flex-start;color:var(--fg-muted);display:flex;font-size:.95rem;gap:.6rem;line-height:1.5}.teachers-bullets svg{color:var(--brand-400);flex-shrink:0;margin-top:.12rem}.teachers-fineprint{background:rgba(var(--brand-rgb),.06);border:1px solid rgba(var(--brand-rgb),.2);border-radius:var(--radius-md);color:var(--fg-muted);font-size:.85rem;line-height:1.55;margin:0 0 var(--space-5);padding:var(--space-3) var(--space-4)}.teachers-cta.MuiButton-root{font-size:.95rem!important;padding:.7rem 1.3rem!important}.teachers-preview{position:relative;z-index:1}.roster{background:var(--canvas);border:1px solid var(--stroke);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden}.roster-row{grid-gap:var(--space-3);align-items:center;border-bottom:1px solid var(--stroke);color:var(--fg);display:grid;font-size:.9rem;gap:var(--space-3);grid-template-columns:1.2fr 1.4fr .6fr;padding:.7rem 1rem}.roster-row:last-child{border-bottom:0}.roster-head{background:var(--surface-2);color:var(--fg-subtle);font-size:.75rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase}.roster-name{color:var(--fg);font-weight:500}.roster-pct{grid-gap:.6rem;align-items:center;display:grid;gap:.6rem;grid-template-columns:1fr auto;position:relative}.roster-bar{background:var(--gradient-brand);border-radius:3px;display:block;height:6px}.roster-pct b{font-feature-settings:"tnum";color:var(--fg);font-size:.85rem;font-variant-numeric:tabular-nums;font-weight:600}.roster-best{color:var(--fg-muted);font-family:var(--font-mono);font-size:.85rem;text-align:right}.benefits .section-head{margin-bottom:var(--space-8)}.stats-row{grid-gap:var(--space-5);display:grid;gap:var(--space-5);grid-template-columns:repeat(3,1fr);margin:0 auto;max-width:900px}.stat-card{background:var(--surface);border:1px solid var(--stroke);border-radius:var(--radius-lg);overflow:hidden;padding:var(--space-6);position:relative;text-align:center}.stat-card:before{background:var(--gradient-brand);content:"";height:3px;left:0;position:absolute;right:0;top:0}.stat-number{font-feature-settings:"tnum";color:var(--fg);display:block;font-family:var(--font-display);font-size:clamp(2rem,4vw,2.8rem);font-variant-numeric:tabular-nums;font-weight:700;letter-spacing:-.02em;line-height:1.1;margin-bottom:var(--space-2)}.stat-label{color:var(--fg-muted);display:block;font-size:.95rem;font-weight:500}@media (max-width:960px){.home{gap:var(--space-12)}.hero{padding:var(--space-10) 0 var(--space-8)}.hero-inner{gap:var(--space-8);grid-template-columns:1fr}.hero-copy{margin:0 auto;order:1;text-align:center}.hero-copy .hero-subtitle{margin-left:auto;margin-right:auto}.hero-cta,.hero-trust{justify-content:center}.hero-visual{max-width:360px;order:2}.features-grid{grid-template-columns:repeat(2,1fr)}.steps,.teachers-card{grid-template-columns:1fr}.teachers-card{gap:var(--space-6);padding:var(--space-8)}.stats-row{grid-template-columns:1fr 1fr}}@media (max-width:600px){.hero-inner,.section-inner{padding:0 var(--space-4)}.hero-inner{gap:var(--space-6)}.hero{padding:var(--space-8) 0 var(--space-6)}.hero-title{font-size:clamp(2rem,8vw,2.6rem)}.hero-cta .MuiButton-root{width:100%}.hero-cta{flex-direction:column}.hero-visual{max-width:320px}.hero-card{min-width:180px;padding:.75rem .9rem}.hero-card-a{left:0;top:14%}.hero-card-b{left:30%;top:62%}.hero-card-c{right:-2%;top:2%}.features-grid,.ladder-row{grid-template-columns:1fr}.ladder-row{gap:var(--space-2)}.stats-row{grid-template-columns:1fr}.roster-row{grid-template-columns:1fr 1.4fr .7fr;padding:.6rem .8rem}}.grade-landing{color:var(--fg);margin:0 auto;max-width:var(--content-max);padding:var(--space-6) var(--space-5) var(--space-10);width:100%}.grade-header{margin-bottom:var(--space-5)}.grade-title-row{align-items:center;display:flex;flex-wrap:wrap;gap:var(--space-3);margin-bottom:var(--space-4)}.grade-title-row h1{color:var(--fg);font-family:var(--font-display);font-size:var(--fs-2xl);font-weight:700;letter-spacing:-.02em;margin:0;text-align:left}.spacer{flex:1 1}.hide-completed-toggle{align-items:center;background:var(--surface);border:1px solid var(--stroke);border-radius:var(--radius-md);cursor:pointer;display:inline-flex;gap:var(--space-2);padding:.45rem .85rem;transition:all var(--dur-fast) var(--ease);-webkit-user-select:none;user-select:none}.hide-completed-toggle:hover{background:var(--surface-2);border-color:var(--brand-500)}.hide-completed-toggle input[type=checkbox]{accent-color:var(--brand-500);cursor:pointer;height:16px;margin:0;width:16px}.hide-completed-toggle span{color:var(--fg);font-size:.85rem;font-weight:500;white-space:nowrap}.youtube-btn{align-items:center;border-radius:var(--radius-sm);display:inline-flex;justify-content:center;overflow:hidden;text-decoration:none;transition:transform var(--dur-fast) var(--ease)}.youtube-btn:hover{transform:scale(1.08)}.completion-status{background:var(--surface);border:1px solid var(--stroke);border-radius:var(--radius-lg);margin-bottom:var(--space-5);padding:var(--space-4) var(--space-5)}.completion-text{align-items:center;color:var(--fg);display:flex;flex-wrap:wrap;font-size:.95rem;gap:var(--space-2);margin-bottom:var(--space-2)}.completion-percentage{font-feature-settings:"tnum";border-radius:var(--radius-pill);font-size:.85rem;font-variant-numeric:tabular-nums;font-weight:700;padding:.2rem .65rem;transition:all .3s ease}.completion-percentage.complete{background:linear-gradient(135deg,#22c55e,#16a34a);box-shadow:0 2px 6px #22c55e4d;color:#fff}.completion-percentage.high{background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff}.completion-percentage.medium{background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff}.completion-percentage.low{background:linear-gradient(135deg,#f97316,#ea580c);color:#fff}.completion-percentage.very-low{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff}.completion-bar{background:var(--canvas);border:1px solid var(--stroke);border-radius:5px;height:10px;overflow:hidden}.completion-progress{border-radius:5px;height:100%;position:relative;transition:width .3s ease,background .3s ease}.completion-progress.complete{background:linear-gradient(90deg,#22c55e,#16a34a);box-shadow:0 0 10px #22c55e80}.completion-progress.high{background:linear-gradient(90deg,#3b82f6,#2563eb)}.completion-progress.medium{background:linear-gradient(90deg,#f59e0b,#d97706)}.completion-progress.low{background:linear-gradient(90deg,#f97316,#ea580c)}.completion-progress.very-low{background:linear-gradient(90deg,#ef4444,#dc2626)}.topics{grid-gap:var(--space-4);display:grid;gap:var(--space-4);grid-template-columns:repeat(auto-fit,minmax(360px,1fr));width:100%}.topic-card{background:var(--surface);border:1px solid var(--stroke);border-radius:var(--radius-lg);padding:var(--space-5);transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}.topic-card:hover{border-color:rgba(var(--brand-rgb),.35)}.topic-header{align-items:center;border-radius:var(--radius-sm);cursor:pointer;display:flex;flex-wrap:wrap;gap:var(--space-3);justify-content:space-between;margin:calc(var(--space-2)*-1);margin-bottom:var(--space-3);padding:var(--space-2);transition:background-color var(--dur-fast) var(--ease)}.topic-header:hover{background-color:var(--surface-2)}.topic-header-left{align-items:center;display:flex;flex:1 1;gap:var(--space-2);min-width:0}.collapse-icon.MuiSvgIcon-root{color:var(--fg-muted)!important;transition:transform .3s ease!important}.collapse-icon.expanded{transform:rotate(180deg)}.topic-card h2{color:var(--fg);font-family:var(--font-display);font-size:1.1rem;font-weight:600;letter-spacing:-.01em;margin:0}.topic-completion{font-feature-settings:"tnum";align-items:center;border:1px solid #0000;border-radius:var(--radius-pill);display:inline-flex;font-size:.95rem;font-variant-numeric:tabular-nums;font-weight:700;gap:.3rem;padding:.35rem .85rem;transition:all .3s ease}.topic-completion.complete{animation:pulse-complete 2s ease-in-out infinite;background:linear-gradient(135deg,#22c55e,#16a34a);border-color:#15803d;box-shadow:0 2px 8px #22c55e66;color:#fff}.topic-completion.high{background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff}.topic-completion.medium{background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff}.topic-completion.low{background:linear-gradient(135deg,#f97316,#ea580c);color:#fff}.topic-completion.very-low{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff}.topic-completion .checkmark{animation:checkmark-bounce .6s ease;font-size:1.15rem}@keyframes pulse-complete{0%,to{box-shadow:0 2px 8px #22c55e66}50%{box-shadow:0 4px 16px #22c55e99}}@keyframes checkmark-bounce{0%{transform:scale(0)}50%{transform:scale(1.2)}to{transform:scale(1)}}.levels-list{grid-gap:var(--space-2);display:grid;gap:var(--space-2);grid-template-columns:repeat(auto-fill,minmax(280px,1fr));padding:var(--space-2) 0 0}.level-rectangle{align-items:center;background:var(--surface-2);border:1px solid var(--stroke);border-radius:var(--radius-md);color:var(--fg);cursor:pointer;display:flex;gap:var(--space-3);justify-content:space-between;min-height:52px;padding:.7rem 1rem;transition:transform var(--dur) var(--ease),background-color var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}.level-rectangle:hover{background:var(--surface);border-color:var(--brand-500);box-shadow:var(--shadow-sm);transform:translateX(3px)}.level-rectangle.completed{background:linear-gradient(135deg,rgba(var(--brand-rgb),.9) 0,rgba(var(--accent-rgb),.85) 100%);border-color:#0000;box-shadow:0 4px 14px rgba(var(--brand-rgb),.25);color:#fff}.level-rectangle.completed.complete{background:linear-gradient(135deg,#22c55e,#16a34a);box-shadow:0 4px 14px #22c55e4d}.level-rectangle.completed.high{background:linear-gradient(135deg,#3b82f6,#2563eb);box-shadow:0 4px 14px #3b82f64d}.level-rectangle.completed.medium{background:linear-gradient(135deg,#f59e0b,#d97706);box-shadow:0 4px 14px #f59e0b4d}.level-rectangle.completed.low{background:linear-gradient(135deg,#f97316,#ea580c);box-shadow:0 4px 14px #f973164d}.level-rectangle.completed.very-low{background:linear-gradient(135deg,#ef4444,#dc2626);box-shadow:0 4px 14px #ef44444d}.level-rectangle.completed:hover{filter:brightness(1.08)}.level-rectangle .activity-title{color:inherit;flex:1 1;font-size:.92rem;font-weight:500;line-height:1.35;text-align:left}.level-rectangle.completed .activity-title{color:#fff}.level-rectangle .completion-time{font-feature-settings:"tnum";background:var(--canvas);border:1px solid var(--stroke);border-radius:var(--radius-sm);color:var(--fg-muted);font-family:var(--font-mono);font-size:.85rem;font-variant-numeric:tabular-nums;font-weight:600;min-width:56px;padding:.25rem .65rem;text-align:center}.level-rectangle.completed .completion-time{background:#ffffff2e;border-color:#ffffff40;color:#fff}.level-square{align-items:center;background:var(--surface-2);border:2px solid var(--stroke-strong);border-radius:var(--radius-md);color:var(--fg);cursor:pointer;display:flex;flex:0 0 46px;justify-content:center;max-height:46px;max-width:46px;min-height:46px;min-width:46px;position:relative;transition:transform var(--dur) var(--ease),background-color var(--dur) var(--ease)}.level-square.completed{background:var(--gradient-brand);border-color:#0000;color:#fff}.level-square.quiz{border-color:var(--brand-500)}.level-square.quiz.completed{background:var(--gradient-brand)}.level-square .completion-count{color:#fff;font-size:1rem;font-weight:700}.level-square:hover{transform:translateY(-2px)}.level-square:before{background:var(--surface);border:1px solid var(--stroke);border-radius:var(--radius-sm);bottom:100%;box-shadow:var(--shadow-sm);color:var(--fg);content:attr(data-tooltip);font-size:.75rem;left:50%;opacity:0;padding:.4rem .6rem;pointer-events:none;position:absolute;transform:translateX(-50%);transition:opacity var(--dur-fast) ease;visibility:hidden;white-space:nowrap;z-index:1000}.level-square:hover:before{bottom:calc(100% + 6px);opacity:1;visibility:visible}.topic-header-standards{display:flex;flex-wrap:wrap;gap:.35rem;margin-left:var(--space-2)}.standard-badge{background:var(--surface-2);border:1px solid var(--stroke);border-radius:var(--radius-sm);color:var(--fg-muted);cursor:default;display:inline-block;font-family:var(--font-mono);font-size:.78rem;font-weight:600;padding:.25rem .6rem;transition:all var(--dur-fast) var(--ease)}.standard-badge:hover{background:var(--brand-500);border-color:var(--brand-500);box-shadow:0 2px 6px rgba(var(--brand-rgb),.3);color:#fff;transform:translateY(-1px)}.grade-standards-section{background:var(--surface);border:1px solid var(--stroke);border-radius:var(--radius-lg);margin-top:var(--space-8);padding:var(--space-6)}.standards-section-title{color:var(--fg);font-family:var(--font-display);font-size:var(--fs-2xl);letter-spacing:-.01em;margin:0 0 var(--space-5) 0}.standards-grade-block{margin-bottom:var(--space-5)}.standards-grade-block:last-child{margin-bottom:0}.standards-grade-title{border-bottom:1px solid var(--stroke);color:var(--fg);font-family:var(--font-display);font-size:var(--fs-xl);letter-spacing:-.01em;margin:0 0 var(--space-4) 0;padding-bottom:var(--space-2)}.standards-domain{background:var(--surface-2);border:1px solid var(--stroke);border-radius:var(--radius-md);margin-bottom:var(--space-2);overflow:hidden}.standards-domain-header{align-items:center;cursor:pointer;display:flex;padding:.7rem .9rem;transition:background-color var(--dur-fast) var(--ease)}.standards-domain-header:hover{background-color:var(--surface-3)}.standards-domain-title{color:var(--fg);font-family:var(--font-display);font-size:var(--fs-lg);font-weight:600;letter-spacing:-.01em;margin:0}.standards-domain-content{padding:0 var(--space-4) var(--space-3)}.standards-cluster{margin-bottom:var(--space-3);padding-left:var(--space-2)}.standards-cluster-name{color:var(--fg-muted);font-size:1.05rem;font-style:italic;font-weight:500;margin-bottom:var(--space-2)}.standards-items{list-style:none;margin:0;padding:0}.standards-item{color:var(--fg);display:flex;font-size:1rem;gap:var(--space-3);line-height:1.6;padding:var(--space-2) 0}.standards-item-code{color:var(--brand-400);font-family:var(--font-mono);font-weight:600;min-width:fit-content;white-space:nowrap}.standards-item-text{color:var(--fg)}.error-message{color:var(--danger);padding:var(--space-4);text-align:center}.loading{color:var(--fg-muted);padding:var(--space-8);text-align:center}@media (max-width:768px){.grade-landing{padding:var(--space-4) var(--space-3) var(--space-8)}.grade-title-row{flex-wrap:wrap;gap:var(--space-2)}.grade-title-row h1{font-size:var(--fs-xl)}.spacer{flex-basis:100%;height:0}.hide-completed-toggle{flex:1 1;justify-content:center}.hide-completed-toggle span{font-size:.8rem}.levels-list,.topics{grid-template-columns:1fr}.level-rectangle .activity-title{font-size:.88rem}.level-rectangle .completion-time{font-size:.78rem;min-width:50px}}.ad-slot{display:block;margin:1.5rem auto;margin:var(--space-6,1.5rem) auto;max-width:728px;min-height:0;padding:0;position:relative;text-align:center;width:100%}.ad-slot-label{color:#888;color:var(--text-secondary,#888);display:block;font-size:.6875rem;letter-spacing:.08em;margin-bottom:.25rem;opacity:.6;text-transform:uppercase}.ad-slot .adsbygoogle{min-height:90px}.ad-slot--compact{margin:.75rem auto .5rem;margin:var(--space-3,.75rem) auto var(--space-2,.5rem);max-width:468px}.ad-slot--compact .adsbygoogle{min-height:60px}.practice-ad-host{width:100%}.practice-ad-host--dialog{margin-top:.75rem;margin-top:var(--space-3,.75rem)}.legal-container{background-color:var(--bg-primary);color:var(--text-primary);min-height:calc(100vh - 200px);padding:2rem 1rem}.legal-paper{background-color:var(--bg-secondary)!important;border:1px solid var(--border-color);box-shadow:var(--shadow-md)!important;color:var(--text-primary)!important}.legal-title{color:var(--primary-light)!important;font-weight:600!important;margin-bottom:2rem!important}.legal-section-title{color:var(--secondary-light)!important;font-weight:500!important}.legal-text{color:var(--text-secondary)!important;line-height:1.6!important}.legal-updated{color:var(--text-light)!important;font-style:italic!important}:root,[data-theme=dark]{--brand-500:#6366f1;--brand-400:#818cf8;--brand-600:#4f46e5;--brand-700:#4338ca;--brand-50:#eef2ff;--accent-500:#ec4899;--accent-400:#f472b6;--accent-600:#db2777;--canvas:#0b1220;--surface:#111a2e;--surface-2:#1a2544;--surface-3:#25335a;--fg:#f1f5f9;--fg-muted:#cbd5e1;--fg-subtle:#94a3b8;--stroke:#2a3557;--stroke-strong:#3c4a78;--success:#22c55e;--success-fg:#dcfce7;--warning:#f59e0b;--warning-fg:#fef3c7;--danger:#ef4444;--danger-fg:#fee2e2;--info:#3b82f6;--shadow-xs:0 1px 2px #00000059;--shadow-sm:0 2px 6px #00000059;--shadow-md:0 8px 20px #0006;--shadow-lg:0 20px 40px #00000073;--gradient-brand:linear-gradient(135deg,var(--brand-500) 0%,var(--accent-500) 100%);--gradient-accent:linear-gradient(135deg,var(--accent-400) 0%,var(--brand-400) 100%);--canvas-backdrop:radial-gradient(1200px 600px at 85% -10%,#ec48991a,#0000 60%),radial-gradient(900px 500px at 10% 10%,#6366f11f,#0000 55%),var(--canvas);--brand-rgb:99,102,241;--accent-rgb:236,72,153;--primary-color:var(--brand-500);--primary-light:var(--brand-400);--primary-dark:var(--brand-600);--primary-color-rgb:var(--brand-rgb);--secondary-color:var(--accent-500);--secondary-light:var(--accent-400);--secondary-dark:var(--accent-600);--bg-primary:var(--canvas);--bg-secondary:var(--surface);--bg-tertiary:var(--surface-2);--text-primary:var(--fg);--text-secondary:var(--fg-muted);--text-light:var(--fg-subtle);--border-color:var(--stroke);--border-light:var(--stroke-strong);--border-dark:var(--stroke);--success-color:var(--success);--warning-color:var(--warning);--danger-color:var(--danger);--error-color:var(--danger);--error-dark:#b91c1c;--info-color:var(--info);--gradient-primary:var(--gradient-brand);--gradient-secondary:var(--gradient-accent)}[data-theme=light]{--brand-500:#4f46e5;--brand-400:#6366f1;--brand-600:#4338ca;--brand-700:#3730a3;--brand-50:#eef2ff;--accent-500:#db2777;--accent-400:#ec4899;--accent-600:#be185d;--canvas:#f6f7fb;--surface:#fff;--surface-2:#f1f3f9;--surface-3:#e5e9f3;--fg:#0f172a;--fg-muted:#334155;--fg-subtle:#64748b;--stroke:#e2e8f0;--stroke-strong:#cbd5e1;--success:#16a34a;--success-fg:#065f46;--warning:#d97706;--warning-fg:#78350f;--danger:#dc2626;--danger-fg:#7f1d1d;--info:#2563eb;--shadow-xs:0 1px 2px #0f172a0f;--shadow-sm:0 2px 6px #0f172a14;--shadow-md:0 8px 20px #0f172a1a;--shadow-lg:0 20px 40px #0f172a24;--canvas-backdrop:radial-gradient(1200px 600px at 85% -10%,#ec489914,#0000 60%),radial-gradient(900px 500px at 10% 10%,#4f46e51a,#0000 55%),var(--canvas);--brand-rgb:79,70,229;--accent-rgb:219,39,119}[data-theme=light] .header.MuiAppBar-root{background-color:#ffffffd1}[data-theme=light] .grade-progress-item:focus-visible,[data-theme=light] .grade-progress-item:hover{background-color:#25335a;background-color:var(--surface-3);box-shadow:0 4px 14px #0f172a14}[data-theme=light] .level-rectangle:hover{background:#eef2ff;background:var(--brand-50);border-color:#6366f1;border-color:var(--brand-500)}[data-theme=light] .topic-header:hover{background-color:#25335a;background-color:var(--surface-3)}[data-theme=light] .feature-card:hover{border-color:#6366f1;border-color:var(--brand-500);box-shadow:0 10px 28px #4f46e51f}[data-theme=light] .time-card.MuiPaper-root:hover{border-color:#6366f1;border-color:var(--brand-500);box-shadow:0 4px 14px #0f172a14!important}[data-theme=light] .step{box-shadow:0 1px 2px #0f172a0a}[data-theme=light] .feature-card,[data-theme=light] .stat-card,[data-theme=light] .step,[data-theme=light] .teachers-card{box-shadow:0 1px 3px #0f172a0f}[data-theme=light] .hero-card{box-shadow:0 12px 28px #0f172a1a}[data-theme=light] .ladder-chip:hover{box-shadow:0 6px 14px #4f46e540}[data-theme=light] .hero-orbit{opacity:.5}[data-theme=light] .table-container::-webkit-scrollbar-thumb{background:#3c4a78;background:var(--stroke-strong)}[data-theme=light] .table-container::-webkit-scrollbar-thumb:hover{background:#6366f1;background:var(--brand-500)}:root{--fs-xs:clamp(0.72rem,0.70rem + 0.10vw,0.80rem);--fs-sm:clamp(0.85rem,0.82rem + 0.15vw,0.95rem);--fs-md:clamp(0.95rem,0.92rem + 0.20vw,1.05rem);--fs-lg:clamp(1.10rem,1.05rem + 0.30vw,1.25rem);--fs-xl:clamp(1.35rem,1.25rem + 0.50vw,1.60rem);--fs-2xl:clamp(1.70rem,1.50rem + 1.00vw,2.10rem);--fs-3xl:clamp(2.10rem,1.70rem + 2.00vw,3.00rem);--fs-4xl:clamp(2.75rem,2.00rem + 3.50vw,4.25rem);--space-1:0.25rem;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-5:1.25rem;--space-6:1.5rem;--space-8:2rem;--space-10:2.5rem;--space-12:3rem;--space-16:4rem;--space-20:5rem;--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--radius-xl:20px;--radius-pill:999px;--ease:cubic-bezier(0.4,0,0.2,1);--dur-fast:140ms;--dur:220ms;--dur-slow:380ms;--header-h:64px;--content-max:1200px;--font-sans:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;--font-display:"Space Grotesk","Inter",system-ui,sans-serif;--font-mono:"JetBrains Mono","Fira Code","Courier New",monospace}.MuiButton-root{border-radius:var(--radius-md)!important;font-weight:500!important;text-transform:none!important}.app-btn.MuiButton-root,button.app-btn{border-radius:var(--radius-md);font-size:var(--fs-md);font-weight:600;letter-spacing:0;padding:.6rem 1.1rem;text-transform:none;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background-color var(--dur) var(--ease),color var(--dur) var(--ease)}.app-btn-primary.MuiButton-root{background:var(--gradient-brand)!important;border:0!important;box-shadow:0 6px 18px rgba(var(--brand-rgb),.35);color:#fff!important}.app-btn-primary.MuiButton-root:hover{box-shadow:0 10px 24px rgba(var(--brand-rgb),.45);transform:translateY(-1px)}.app-btn-primary.MuiButton-root:disabled{box-shadow:none;opacity:.6}.app-btn-ghost.MuiButton-root{background:#0000!important;border:1px solid var(--stroke-strong)!important;color:var(--fg)!important}.app-btn-ghost.MuiButton-root:hover{background:var(--surface-2)!important;border-color:var(--brand-500)!important;color:var(--fg)!important}.app-btn-soft.MuiButton-root{background:var(--surface-2)!important;border:1px solid var(--stroke)!important;color:var(--fg)!important}.app-btn-soft.MuiButton-root:hover{background:var(--surface-3)!important}*,:after,:before{box-sizing:border-box}html{-webkit-text-size-adjust:100%;color-scheme:dark}[data-theme=light]{color-scheme:light}body,html{margin:0;min-height:100%;padding:0}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--canvas-backdrop);background-attachment:fixed;color:var(--fg);font-family:var(--font-sans);font-size:var(--fs-md);line-height:1.55;text-rendering:optimizeLegibility}.app-container{display:flex;flex-direction:column;min-height:100vh}main.main-content{display:flex;flex:1 1;flex-direction:column;padding-top:var(--header-h)}h1,h2,h3,h4,h5{color:var(--fg);font-family:var(--font-display);letter-spacing:-.01em;line-height:1.2}h1,h2,h3,h4,h5,p{margin:0 0 var(--space-4)}p{color:var(--fg-muted)}a{color:var(--brand-400);text-decoration:none}a:hover{color:var(--brand-500)}::selection{background:rgba(var(--brand-rgb),.35);color:var(--fg)}:focus-visible{border-radius:4px;outline:2px solid var(--brand-500);outline-offset:2px}.container{margin:0 auto;max-width:var(--content-max);padding:0 var(--space-6);width:100%}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-1{gap:var(--space-2)}.gap-2{gap:var(--space-4)}.gap-4{gap:var(--space-8)}.paper{background-color:var(--surface);border:1px solid var(--stroke);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:var(--space-6)}.paper-dark{background-color:var(--canvas)}.paper-light{background-color:var(--surface-2)}.title{color:var(--fg);font-weight:600;margin-bottom:var(--space-4)}.title-lg{font-size:var(--fs-2xl)}.title-md{font-size:var(--fs-xl)}.title-sm{font-size:var(--fs-lg)}.text-primary{color:var(--fg)}.text-secondary{color:var(--fg-muted)}.text-center{text-align:center}.hover-elevate{transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}.hover-elevate:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.transition-fast{transition:all var(--dur-fast) var(--ease)}.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-4{margin-top:2rem}.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-4{margin-bottom:2rem}.p-1{padding:.5rem}.p-2{padding:1rem}.p-4{padding:2rem}.w-full{width:100%}.h-full{height:100%}.relative{position:relative}.absolute{position:absolute}.fixed{position:fixed}.flex-center{align-items:center;display:flex;justify-content:center}@media (prefers-reduced-motion:reduce){*,:after,:before{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}
/*# sourceMappingURL=main.a2092040.css.map*/