:root{--navy: #0d1e38;--navy-2: #16305a;--gold: #c8860a;--gold-soft: #fac775;--bg: #f6f7fb;--surface: #ffffff;--surface-2: #eef3fb;--text: #111827;--muted: #5b6474;--border: #e3e7ef;--primary: #16305a;--primary-text: #ffffff;--accent: #c8860a;--ok: #067a52;--ok-bg: #e9f8f1;--warn: #9a5b00;--warn-bg: #fff4dd;--bad: #b42318;--bad-bg: #fdecea;--focus: #2f6fdb;--radius: 14px;--shadow: 0 1px 2px rgba(13, 30, 56, .06), 0 6px 20px rgba(13, 30, 56, .06);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Noto Sans Devanagari,Nirmala UI,Mangal,sans-serif;color-scheme:light}@media (prefers-color-scheme: dark){:root:not([data-theme=light]){--bg: #0b1424;--surface: #111d33;--surface-2: #17264a;--text: #e8ecf5;--muted: #9aa6bd;--border: #22345a;--primary: #fac775;--primary-text: #0d1e38;--accent: #fac775;--ok: #4ade9b;--ok-bg: #0e2e24;--warn: #fbbf5a;--warn-bg: #33260b;--bad: #ff8a80;--bad-bg: #3a1614;--shadow: 0 1px 2px rgba(0, 0, 0, .3);color-scheme:dark}}:root[data-theme=dark]{--bg: #0b1424;--surface: #111d33;--surface-2: #17264a;--text: #e8ecf5;--muted: #9aa6bd;--border: #22345a;--primary: #fac775;--primary-text: #0d1e38;--accent: #fac775;--ok: #4ade9b;--ok-bg: #0e2e24;--warn: #fbbf5a;--warn-bg: #33260b;--bad: #ff8a80;--bad-bg: #3a1614;color-scheme:dark}*{box-sizing:border-box}html,body{margin:0}body{background:var(--bg);color:var(--text);font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased}a{color:var(--primary)}h1,h2,h3,h4{line-height:1.25;margin:0 0 .5em;letter-spacing:-.01em}h1{font-size:1.7rem}h2{font-size:1.3rem}h3{font-size:1.08rem}p{margin:0 0 .8em}img{max-width:100%}:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:6px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.shell{display:grid;grid-template-columns:248px 1fr;min-height:100vh}.side{background:var(--navy);color:#dfe6f3;padding:18px 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a.active{background:#fac77529;color:var(--gold-soft)}.main{min-width:0}.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 28px;border-bottom:1px solid var(--border);background:var(--surface);position:sticky;top:0;z-index:5}.content{padding:28px;max-width:1180px}.btn.menu-btn{display:none}.user-chip{display:flex;align-items:center;gap:10px}.avatar{width:34px;height:34px;border-radius:50%;background:var(--surface-2);color:var(--primary);display:grid;place-items:center;font-weight:700}@media (max-width: 900px){.shell{grid-template-columns:1fr}.side{position:fixed;inset:0 auto 0 0;width:270px;z-index:30;transform:translate(-100%);transition:transform .2s}.side.open{transform:none;box-shadow:0 0 0 100vmax #0006}.btn.menu-btn{display:inline-flex}.topbar{padding:12px 16px}.content{padding:18px 16px}}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}.card+.card{margin-top:16px}.card-title{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}.grid{display:grid;gap:16px}.grid-2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.grid-3{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}.grid-4{grid-template-columns:repeat(auto-fill,minmax(170px,1fr))}.row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.row-between{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}.stack>*+*{margin-top:12px}.muted{color:var(--muted)}.small{font-size:.86rem}.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:20px}.page-head p{margin:0;color:var(--muted)}hr.sep{border:0;border-top:1px solid var(--border);margin:18px 0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:40px;padding:8px 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12px;min-height:40px;width:100%}textarea{min-height:90px;resize:vertical}input[type=checkbox],input[type=radio]{width:18px;height:18px;min-height:0;accent-color:var(--primary)}.check{display:flex;align-items:center;gap:8px;font-weight:500}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:0 16px}.badge{display:inline-flex;align-items:center;gap:4px;padding:2px 9px;border-radius:999px;font-size:.76rem;font-weight:600;background:var(--surface-2);color:var(--primary);white-space:nowrap}.badge.ok{background:var(--ok-bg);color:var(--ok)}.badge.warn{background:var(--warn-bg);color:var(--warn)}.badge.bad{background:var(--bad-bg);color:var(--bad)}.alert{padding:12px 14px;border-radius:10px;margin-bottom:14px;background:var(--surface-2)}.alert.bad{background:var(--bad-bg);color:var(--bad)}.alert.ok{background:var(--ok-bg);color:var(--ok)}.alert.warn{background:var(--warn-bg);color:var(--warn)}.stat{padding:16px 18px}.stat .num{font-size:1.75rem;font-weight:750;letter-spacing:-.02em}.stat .lbl{color:var(--muted);font-size:.85rem}.progress{height:8px;border-radius:99px;background:var(--surface-2);overflow:hidden}.progress>span{display:block;height:100%;background:linear-gradient(90deg,var(--gold),var(--gold-soft));border-radius:99px}table.table{width:100%;border-collapse:collapse}.table th,.table td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--border);vertical-align:top}.table th{font-size:.78rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);font-weight:600}.table-wrap{overflow-x:auto}.tabs{display:flex;gap:4px;border-bottom:1px solid var(--border);margin-bottom:18px;overflow-x:auto}.tabs button{background:none;border:0;padding:10px 14px;font:inherit;font-weight:600;color:var(--muted);border-bottom:3px solid transparent;cursor:pointer;white-space:nowrap}.tabs button.active{color:var(--primary);border-bottom-color:var(--accent)}.modal-back{position:fixed;top:0;right:0;bottom:0;left:0;background:#09101e8c;display:grid;place-items:center;padding:16px;z-index:50}.modal{background:var(--surface);border-radius:var(--radius);width:min(640px,100%);max-height:92vh;overflow-y:auto;padding:22px;box-shadow:0 20px 60px #0000004d}.modal.wide{width:min(980px,100%)}.empty{text-align:center;padding:36px 16px;color:var(--muted)}.spinner{width:22px;height:22px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite;margin:30px auto}@keyframes spin{to{transform:rotate(360deg)}}.toast{position:fixed;bottom:20px;left:50%;transform:translate(-50%);background:var(--navy);color:#fff;padding:12px 18px;border-radius:12px;z-index:60;box-shadow:var(--shadow);max-width:calc(100vw - 32px)}.auth-page{min-height:100vh;display:grid;grid-template-columns:1fr 1fr}.auth-hero{background:radial-gradient(1200px 600px at 10% 10%,#1f3e73 0,var(--navy) 60%);color:#fff;padding:48px;display:flex;flex-direction:column;justify-content:space-between}.auth-hero h1{font-size:2.2rem}.auth-form{display:grid;place-items:center;padding:32px 16px}.auth-form .card{width:min(460px,100%)}@media (max-width: 900px){.auth-page{grid-template-columns:1fr}.auth-hero{padding:28px 20px}.auth-hero h1{font-size:1.6rem}}.course-card{display:flex;flex-direction:column;gap:10px}.course-card .cover{height:110px;border-radius:10px;background:linear-gradient(135deg,var(--navy),var(--navy-2) 60%,var(--gold));color:var(--gold-soft);display:grid;place-items:center;font-size:2rem;font-weight:800}.player{display:grid;grid-template-columns:290px 1fr;gap:20px;align-items:start}.outline{position:sticky;top:80px;max-height:calc(100vh - 100px);overflow-y:auto}.outline a{display:flex;gap:8px;align-items:flex-start;padding:8px 10px;border-radius:9px;text-decoration:none;color:var(--text)}.outline a.active{background:var(--surface-2);font-weight:600}.dot{flex:none;width:18px;height:18px;border-radius:50%;border:2px solid var(--border);margin-top:2px;display:grid;place-items:center;font-size:11px}.dot.done{background:var(--ok);border-color:var(--ok);color:#fff}.dot.started{border-color:var(--gold)}@media (max-width: 900px){.player{grid-template-columns:1fr}.outline{position:static;max-height:none}}.block{margin-bottom:18px}.block-label{font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:700;margin-bottom:6px;display:flex;gap:8px;align-items:center}.scripture{background:var(--surface-2);border-left:4px solid var(--gold);padding:16px 18px;border-radius:10px;font-family:Georgia,Times New Roman,serif;font-size:1.05rem}.scripture sup{color:var(--accent);font-family:system-ui;font-size:.7em;margin-right:3px;font-weight:700}.callout{padding:14px 16px;border-radius:10px;background:var(--warn-bg);color:var(--text);border:1px solid var(--border)}.callout.info{background:var(--surface-2)}.media{position:relative;width:100%;aspect-ratio:16 / 9;border-radius:12px;overflow:hidden;background:#000}.media iframe,.media video{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;border:0}.activity{border:1px solid var(--border);border-radius:var(--radius);padding:18px;background:var(--surface)}.activity-head{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:12px}.option{display:flex;align-items:center;gap:12px;width:100%;text-align:left;padding:12px 14px;border-radius:12px;border:2px solid var(--border);background:var(--surface);color:var(--text);font:inherit;cursor:pointer;margin-bottom:8px;min-height:48px}.option:hover{border-color:var(--primary)}.option.selected{border-color:var(--primary);background:var(--surface-2)}.option.right{border-color:var(--ok);background:var(--ok-bg)}.option.wrong{border-color:var(--bad);background:var(--bad-bg)}.chip{display:inline-flex;align-items:center;padding:8px 12px;border-radius:10px;border:2px solid var(--border);background:var(--surface);margin:4px;cursor:grab;font:inherit;color:var(--text);min-height:42px;-webkit-user-select:none;user-select:none;touch-action:none}.chip.picked{border-color:var(--primary);background:var(--surface-2)}.order-item{display:flex;align-items:center;gap:8px;padding:10px 12px;border:2px solid var(--border);border-radius:12px;background:var(--surface);margin-bottom:8px}.order-item .num{width:26px;height:26px;border-radius:50%;background:var(--surface-2);display:grid;place-items:center;font-weight:700;font-size:.85rem;flex:none}.order-item .grow{flex:1}.dropzone{border:2px dashed var(--border);border-radius:12px;padding:10px;min-height:70px}.dropzone.over{border-color:var(--primary);background:var(--surface-2)}.match-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;align-items:center;margin-bottom:8px}@media (max-width: 560px){.match-row{grid-template-columns:1fr}}.flashcard{perspective:1000px;height:200px;cursor:pointer}.flashcard-inner{position:relative;width:100%;height:100%;transition:transform .45s;transform-style:preserve-3d}.flashcard.flipped .flashcard-inner{transform:rotateY(180deg)}.flashcard-face{position:absolute;top:0;right:0;bottom:0;left:0;backface-visibility:hidden;display:grid;place-items:center;text-align:center;padding:20px;border-radius:16px;font-size:1.2rem;font-weight:600;background:linear-gradient(135deg,var(--navy),var(--navy-2));color:#fff}.flashcard-face.back{transform:rotateY(180deg);background:var(--surface-2);color:var(--text);border:2px solid var(--gold)}.memory-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:10px}.memory-card{aspect-ratio:4 / 3;border-radius:12px;border:0;font:inherit;font-weight:600;cursor:pointer;padding:8px;background:linear-gradient(135deg,var(--navy),var(--navy-2));color:var(--gold-soft)}.memory-card.shown{background:var(--surface-2);color:var(--text);border:2px solid var(--primary)}.memory-card.matched{background:var(--ok-bg);color:var(--ok);border:2px solid var(--ok);cursor:default}.blank-input{display:inline-block;width:150px;min-height:34px;padding:4px 8px;margin:2px 4px;border-bottom:2px solid var(--primary)}.result{margin-top:14px;padding:14px 16px;border-radius:12px}.result.pass{background:var(--ok-bg);color:var(--ok)}.result.fail{background:var(--warn-bg);color:var(--warn)}.xp-pop{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;background:var(--gold);color:#fff;font-weight:700;font-size:.85rem}.scene{padding:18px;border-radius:12px;background:var(--surface-2);font-size:1.05rem;margin-bottom:12px}.certificate{background:#fffdf7;color:#1a1a1a;border:10px double #c8860a;padding:48px 40px;text-align:center;font-family:Georgia,Times New Roman,serif;max-width:900px;margin:0 auto;position:relative}.certificate h1{font-size:2.4rem;color:#0d1e38;margin-bottom:4px;letter-spacing:.02em}.certificate .name{font-size:2rem;color:#8a5a00;border-bottom:1px solid #c8860a;display:inline-block;padding:0 30px 6px;margin:14px 0}.certificate .meta{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;margin-top:30px;font-family:system-ui;font-size:.85rem;text-align:left;flex-wrap:wrap}.certificate img.qr{width:110px;height:110px}.revoked-stamp{position:absolute;top:40%;left:50%;transform:translate(-50%,-50%) rotate(-18deg);border:6px solid #b42318;color:#b42318;font-size:3rem;font-weight:900;padding:6px 26px;letter-spacing:.1em;font-family:system-ui;opacity:.85}@media print{.side,.topbar,.no-print{display:none!important}.shell{display:block}.content{padding:0;max-width:none}body{background:#fff}}.tree-module{border:1px solid var(--border);border-radius:12px;margin-bottom:14px;background:var(--surface)}.tree-module>.head{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:12px 14px;background:var(--surface-2);border-radius:12px 12px 0 0;flex-wrap:wrap}.tree-lesson{border-top:1px solid var(--border);padding:12px 14px}.tree-block{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:7px 10px;border:1px solid var(--border);border-radius:9px;margin:6px 0;background:var(--bg);flex-wrap:wrap}.code{font-family:ui-monospace,Consolas,monospace;font-size:.85rem}.hierarchy-node{padding:8px 0 8px 18px;border-left:2px solid var(--border)}