:root{--navy:#14213d;--red:#e63946;--paper:#f7f8fa;--ink:#1b1b1f;--muted:#667085;--line:#e4e7ec;--white:#fff;--ok:#18864b;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}*{box-sizing:border-box}html{background:var(--paper)}body{color:var(--ink);background:var(--paper);margin:0;font-family:Inter,Manrope,Segoe UI,Arial,sans-serif;line-height:1.5}a{color:inherit}.container{width:min(1120px,100% - 32px);margin:auto}.narrow{width:min(680px,100% - 32px);margin:auto}.topbar{background:var(--navy);color:#fff;padding:16px 0}.topbar-inner,.row{justify-content:space-between;align-items:center;gap:16px;display:flex}.brand{letter-spacing:.08em;font-weight:900;text-decoration:none}.brand span{color:#ff5a65}.nav{flex-wrap:wrap;gap:8px;display:flex}.nav a{border-radius:10px;padding:8px 12px;text-decoration:none}.nav a:hover{background:#ffffff18}.hero{padding:70px 0 36px}.eyebrow{color:var(--red);text-transform:uppercase;letter-spacing:.1em;font-size:13px;font-weight:800}.hero h1,.page-title{letter-spacing:-.04em;margin:12px 0 18px;font-size:clamp(34px,7vw,68px);line-height:1.02}.page-title{font-size:clamp(32px,5vw,52px)}.lead{color:#475467;max-width:720px;font-size:20px}.grid{gap:18px;display:grid}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.card{border:1px solid var(--line);background:#fff;border-radius:22px;padding:24px;box-shadow:0 10px 32px #14213d0a}.login-card{max-width:580px;margin:24px auto 70px}.label{margin:16px 0 7px;font-weight:750;display:block}.input,.textarea,.select{width:100%;font:inherit;color:var(--ink);background:#fff;border:1px solid #cbd2dc;border-radius:12px;padding:13px 14px}.textarea{resize:vertical;min-height:120px}.input:focus,.textarea:focus,.select:focus{border-color:var(--red);outline:3px solid #e6394622}.checkbox{align-items:flex-start;gap:10px;margin:18px 0;display:flex}.button{background:var(--red);color:#fff;font-weight:800;font:inherit;cursor:pointer;border:0;border-radius:12px;justify-content:center;align-items:center;padding:13px 18px;text-decoration:none;display:inline-flex}.button:hover{filter:brightness(.96)}.button.secondary{background:var(--navy)}.button.ghost{color:var(--navy);background:#edf0f5}.button.small{padding:8px 11px;font-size:14px}.error{color:#a31320;background:#fff0f1;border:1px solid #ffc8cd;border-radius:12px;padding:12px 14px}.success{color:#096535;background:#edfdf3;border:1px solid #b5e9c9;border-radius:12px;padding:12px 14px}.muted{color:var(--muted)}.footer{border-top:1px solid var(--line);color:var(--muted);margin-top:60px;padding:28px 0;font-size:14px}.footer a{margin-right:16px}.dashboard{padding:38px 0}.lesson-card{text-decoration:none;display:block;position:relative}.lesson-card.locked{opacity:.58}.lesson-number{background:var(--navy);color:#fff;border-radius:11px;place-items:center;width:38px;height:38px;font-weight:900;display:inline-grid}.badge{background:#edf0f5;border-radius:999px;padding:4px 9px;font-size:13px;font-weight:750;display:inline-block}.badge.open{color:#096535;background:#e7f7ee}.progress-track{background:#e5e9ef;border-radius:999px;height:12px;overflow:hidden}.progress-fill{background:var(--red);height:100%}.content h2{margin-top:32px}.content blockquote{border-left:4px solid var(--red);background:#fff4f5;margin-left:0;padding:10px 18px}.quick{border-left:5px solid var(--red)}.stat{color:var(--navy);font-size:38px;font-weight:900}.admin-table{border-collapse:collapse;width:100%}.admin-table th,.admin-table td{text-align:left;border-bottom:1px solid var(--line);padding:12px}.legal{padding:42px 0}.legal h1{font-size:42px}.legal h2{margin-top:30px}.slide-shell{color:#fff;background:#0d162b;grid-template-rows:auto 1fr auto;min-height:100vh;display:grid}.slide-top,.slide-bottom{justify-content:space-between;align-items:center;padding:18px 30px;display:flex}.slide-stage{text-align:center;place-items:center;padding:5vh 8vw;display:grid}.slide-stage h1{margin:0 0 30px;font-size:clamp(45px,7vw,96px);line-height:1.03}.slide-stage p,.slide-stage li{font-size:clamp(24px,3vw,48px)}.slide-stage ul{text-align:left}.timer{font-size:28px;font-weight:900}.hidden{display:none}@media (max-width:760px){.grid-2,.grid-3{grid-template-columns:1fr}.hero{padding-top:44px}.topbar-inner{flex-direction:column;align-items:flex-start}.card{padding:19px}.admin-table{font-size:14px}.admin-table th:nth-child(3),.admin-table td:nth-child(3){display:none}}@media (prefers-color-scheme:dark){.student-area{--paper:#0f1729;--ink:#f5f7fa;--muted:#a7b0c0;--line:#2a3448;--white:#192238;background:var(--paper);color:var(--ink)}.student-area .card,.student-area .input,.student-area .textarea{background:var(--white);color:var(--ink);border-color:var(--line)}.student-area .lead{color:#c7cfdb}}@media print{.topbar,.footer,.no-print{display:none!important}.card{box-shadow:none;border:0;padding:0}body{background:#fff}.container{width:100%}}