:root{--navy:#081a2b;--navy2:#103b5c;--blue:#0a8bd8;--cyan:#29c6da;--ink:#132b3f;--muted:#718498;--line:#dce6ee;--surface:#fff;--bg:#eff5f8;--danger:#dc3545;--shadow:0 16px 45px rgba(15,50,73,.12)}*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg)}a{color:inherit}.app-shell{min-height:100vh;padding-bottom:88px}.topbar{height:68px;padding:0 max(18px,env(safe-area-inset-left));display:flex;align-items:center;justify-content:space-between;background:rgba(255,255,255,.92);backdrop-filter:blur(18px);border-bottom:1px solid rgba(211,225,235,.8);position:sticky;top:0;z-index:20}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:800}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:11px;background:linear-gradient(145deg,var(--blue),var(--cyan));color:#fff;font-size:.72rem;box-shadow:0 8px 18px rgba(10,139,216,.25)}.brand-mark.large{width:54px;height:54px;border-radius:17px;font-size:1rem}.avatar{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:#e5f4fb;text-decoration:none;color:#0876b5;font-weight:800}.page{max-width:760px;margin:auto;padding:20px 16px}.hero{display:flex;justify-content:space-between;gap:20px;align-items:flex-end;padding:25px 22px;border-radius:25px;color:#fff;background:radial-gradient(circle at 100% 0,#1a8fc9 0,transparent 42%),linear-gradient(135deg,#081a2b,#10476c);box-shadow:var(--shadow)}.hero h1{margin:4px 0 6px;font-size:1.62rem}.hero p{margin:0;color:#c8e4f2;line-height:1.45;font-size:.87rem}.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:.65rem;font-weight:850;color:#34b6e8}.hero-count{text-align:center;min-width:70px;padding:12px;border-radius:18px;background:#ffffff18;border:1px solid #ffffff25}.hero-count strong{font-size:1.7rem;display:block}.hero-count span{font-size:.65rem;color:#d7eef7}.section-title{padding:26px 4px 12px}.section-title>div{display:flex;gap:12px;align-items:center}.section-title>div>span{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:#dff3fb;color:#0b83c5}.section-title h2{font-size:1rem;margin:0}.section-title p{font-size:.72rem;color:var(--muted);margin:3px 0}.lesson-list{display:grid;gap:10px}.lesson{display:flex;align-items:center;gap:14px;padding:15px;background:var(--surface);border:1px solid var(--line);border-radius:18px;text-decoration:none;box-shadow:0 7px 22px rgba(13,56,83,.055);transition:.2s}.lesson:active{transform:scale(.985)}.play{display:grid;place-items:center;width:46px;height:46px;flex:0 0 auto;border-radius:15px;background:linear-gradient(145deg,#e4f6fc,#d4edf8);color:#0784c9;padding-left:2px}.lesson-copy{min-width:0;flex:1}.lesson-copy h3{margin:4px 0;font-size:.9rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.lesson-copy p{margin:0;font-size:.68rem;color:var(--muted)}.tag{font-size:.58rem;letter-spacing:.08em;text-transform:uppercase;color:#087ebd;font-weight:800}.lesson-number{font-size:.72rem;color:#9aabba;font-weight:700}.empty{text-align:center;padding:58px 25px;background:#fff;border:1px dashed #c8d8e3;border-radius:22px}.empty>div{font-size:2.5rem;color:#36a8d6}.empty h2{font-size:1.05rem}.empty p{color:var(--muted);font-size:.8rem;line-height:1.5}.bottom-nav{position:fixed;bottom:0;left:0;right:0;height:72px;padding-bottom:env(safe-area-inset-bottom);display:flex;background:#fff;border-top:1px solid var(--line);box-shadow:0 -8px 30px #133e5712;z-index:25}.bottom-nav a{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:4px;text-decoration:none;font-size:.68rem;color:#8293a2}.bottom-nav a span{font-size:1rem}.bottom-nav a.active{color:#0788cf;font-weight:800}.back{display:inline-block;margin:2px 0 14px;text-decoration:none;color:#287aa7;font-size:.8rem;font-weight:700}.watch-card{overflow:hidden;background:#fff;border-radius:24px;box-shadow:var(--shadow)}.player{position:relative;aspect-ratio:16/9;background:#02070a;display:grid;place-items:center}.player video{width:100%;height:100%;object-fit:contain}.player-state{position:absolute;color:#cfdae0;font-size:.75rem}.player-state.error{color:#ff9ca7}.watermark{position:absolute;z-index:3;max-width:42%;padding:5px 8px;border:1px solid #ffffff55;border-radius:7px;color:#fff;background:#06182778;font-size:clamp(.56rem,2.4vw,.8rem);font-weight:750;text-shadow:0 1px 3px #000;pointer-events:none;opacity:.72;transition:top .7s,left .7s}.cinema{position:absolute;right:10px;bottom:43px;z-index:4;border:1px solid #ffffff73;background:#051928c7;color:#fff;width:35px;height:35px;border-radius:10px}.cinema-mode{position:fixed;inset:0;z-index:100;aspect-ratio:auto;width:100vw;height:100dvh}.no-scroll{overflow:hidden}.watch-copy{padding:20px}.watch-copy h1{font-size:1.2rem;margin:6px 0}.watch-copy p{margin:0;color:var(--muted);font-size:.76rem;line-height:1.55}.profile{text-align:center;padding:28px 0}.profile-avatar{width:74px;height:74px;margin:auto;display:grid;place-items:center;border-radius:24px;background:linear-gradient(145deg,var(--blue),var(--cyan));color:#fff;font-size:1.6rem;font-weight:850;box-shadow:0 15px 28px #0788cf3b}.profile h1{font-size:1.25rem;margin:14px 0 4px}.profile p{color:var(--muted);margin:0;font-size:.75rem}.panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px;margin-bottom:14px}.panel h2{font-size:1rem;margin-top:0}.muted{color:var(--muted);line-height:1.5}.details div{padding:12px 0;border-bottom:1px solid #edf2f5}.details div:last-child{border:0}.details span,.details strong{display:block}.details span{font-size:.64rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}.details strong{font-size:.82rem;margin-top:3px;overflow-wrap:anywhere}.recovery{display:grid;grid-template-columns:1fr 1fr;gap:7px}.recovery code{background:#eff5f8;padding:8px;border-radius:8px;text-align:center}.danger-button{display:block;text-align:center;padding:14px;border:1px solid #f3c4ca;background:#fff;color:var(--danger);border-radius:15px;text-decoration:none;font-weight:750}.auth-body{background:linear-gradient(160deg,#061827,#0d3856 48%,#eaf3f7 48%);min-height:100vh}.auth-wrap{max-width:480px;margin:auto;padding:clamp(42px,10vh,90px) 18px}.auth-wrap.compact{max-width:470px}.auth-brand{color:#fff;padding:0 8px 30px}.auth-brand p{font-size:.72rem;text-transform:uppercase;letter-spacing:.13em;color:#81d4f3}.auth-brand h1{font-size:1.75rem;line-height:1.15;margin:8px 0}.auth-card{background:#fff;border-radius:26px;padding:25px;box-shadow:0 25px 70px #020d1580}.auth-card h1,.auth-card h2{font-size:1.35rem;margin:7px 0}.auth-card label{display:block;font-size:.7rem;font-weight:750;margin:16px 0 7px}.auth-card input{display:block;width:100%;height:49px;border:1px solid #cfdce5;border-radius:13px;padding:0 14px;font:inherit;outline:none}.auth-card input:focus{border-color:#18a1da;box-shadow:0 0 0 4px #1aa5dc1a}.password-row{display:flex}.password-row input{border-radius:13px 0 0 13px}.icon-btn{width:50px;border:1px solid #cfdce5;border-left:0;background:#f4f8fa;border-radius:0 13px 13px 0}.primary{width:100%;height:50px;border:0;border-radius:14px;background:linear-gradient(135deg,#087fc1,#17aadb);color:#fff;font-weight:800;margin-top:19px;display:flex;justify-content:center;align-items:center;gap:10px;box-shadow:0 11px 25px #0b8fca38}.primary:disabled{opacity:.55}.notice{padding:11px 13px;border-radius:11px;font-size:.74rem;margin:12px 0}.notice.error{background:#fff0f2;color:#a52b3b}.notice.success{background:#eafaf2;color:#19704a}.qr{display:flex;justify-content:center;padding:12px}.qr img{border:10px solid #fff;box-shadow:0 5px 25px #0b30431c}.manual-key{font-size:.68rem;text-align:center;color:var(--muted);overflow-wrap:anywhere}.otp{text-align:center;font-size:1.3rem!important;letter-spacing:.18em}
@media(min-width:720px){.page{padding-top:32px}.lesson-list{grid-template-columns:1fr 1fr}.lesson{min-width:0}.bottom-nav{left:50%;transform:translateX(-50%);max-width:440px;bottom:18px;border:1px solid var(--line);border-radius:22px;height:65px}.app-shell{padding-bottom:100px}}