@import "https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400..800&family=JetBrains+Mono:wght@600;800&display=swap";:root{--bg:#f4f7fd;--bg-glow:radial-gradient(1200px 520px at 85% -10%, #2f6bff1a, transparent 60%), radial-gradient(900px 480px at -10% 10%, #00c2ff12, transparent 60%);--surface:#fff;--surface-2:#f0f4fc;--surface-3:#e6edfa;--line:#e0e7f3;--line-strong:#cdd8ec;--ink:#0b1324;--ink-2:#4a5876;--ink-3:#8794b0;--brand:#2563ff;--brand-2:#00b8ff;--brand-deep:#1238c9;--brand-ink:#fff;--brand-soft:#e7eeff;--brand-grad:linear-gradient(135deg, #2f6bff 0%, #1d8dff 55%, #00b8ff 100%);--brand-glow:0 8px 22px -8px #2563ff8c;--accent:#00b8ff;--attn:#f59e0b;--attn-soft:#fff4dc;--ok:#0f9d68;--ok-soft:#dcf6ea;--warn:#b26a00;--warn-soft:#fff1d6;--bad:#e0384f;--bad-soft:#ffe4e8;--info:#5b48e8;--info-soft:#ece9ff;--radius:16px;--radius-sm:11px;--shadow:0 1px 2px #0f1e460d, 0 10px 30px -14px #142d6e38;--shadow-lg:0 2px 6px #0f1e460f, 0 30px 70px -24px #142d6e61;--mono:"JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;--font:"Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", sans-serif;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}@media (prefers-color-scheme:dark){:root{--bg:#060a14;--bg-glow:radial-gradient(1200px 520px at 85% -10%, #2f6bff29, transparent 60%), radial-gradient(900px 480px at -10% 10%, #00b8ff14, transparent 60%);--surface:#0d1424;--surface-2:#121b2f;--surface-3:#18233b;--line:#1d2842;--line-strong:#2a3757;--ink:#e8eeff;--ink-2:#a2afcd;--ink-3:#6a7898;--brand:#4d8bff;--brand-2:#22c8ff;--brand-deep:#2f6bff;--brand-ink:#fff;--brand-soft:#13234a;--brand-glow:0 8px 26px -8px #2f6bffb3;--accent:#22c8ff;--attn:#fbbf24;--attn-soft:#3a2a0c;--ok:#34d399;--ok-soft:#0f2e25;--warn:#fbbf24;--warn-soft:#33270d;--bad:#fb7185;--bad-soft:#3a1520;--info:#a597ff;--info-soft:#221c48;--shadow:0 1px 2px #0006, 0 12px 32px -14px #000000b3;--shadow-lg:0 2px 6px #0006, 0 30px 70px -20px #000c;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}*{box-sizing:border-box}html,body,#root{height:100%}body{background:var(--bg-glow), var(--bg);color:var(--ink);font:15px/1.55 var(--font);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizelegibility;background-attachment:fixed;margin:0}::selection{background:color-mix(in srgb, var(--brand) 25%, transparent)}a{color:var(--brand);text-decoration:none}a:hover{text-underline-offset:3px;text-decoration:underline}h1,h2,h3{letter-spacing:-.02em;margin:0;line-height:1.2}h1{font-size:28px;font-weight:800}h2{font-size:20px;font-weight:800}h3{font-size:15.5px;font-weight:700}p{margin:0}small,.muted{color:var(--ink-2)}.faint{color:var(--ink-3)}.grad-text{background:var(--brand-grad);color:#0000;-webkit-background-clip:text;background-clip:text}:focus-visible{outline:2px solid var(--brand);outline-offset:2px}*{scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent}.shell{flex-direction:column;min-height:100%;display:flex}.topbar{z-index:10;background:color-mix(in srgb, var(--surface) 78%, transparent);-webkit-backdrop-filter:saturate(1.6)blur(14px);border-bottom:1px solid color-mix(in srgb, var(--line) 80%, transparent);align-items:center;gap:20px;padding:11px 24px;display:flex;position:sticky;top:0}.logo{color:var(--ink);letter-spacing:-.02em;align-items:center;gap:10px;font-size:18.5px;font-weight:800;display:flex}.logo:hover{text-decoration:none}.logo img{width:32px;height:32px;box-shadow:var(--brand-glow);border-radius:9px}.logo b{background:var(--brand-grad);color:#0000;-webkit-background-clip:text;background-clip:text;font-weight:800}.nav{flex:1;gap:2px;display:flex}.nav a{color:var(--ink-2);border-radius:10px;padding:7px 13px;font-size:14.5px;font-weight:650;transition:background .15s,color .15s}.nav a:hover{background:var(--surface-2);color:var(--ink);text-decoration:none}.nav a.active{background:var(--brand-soft);color:var(--brand)}.user-chip{text-align:right;align-items:center;gap:10px;line-height:1.25;display:flex}.avatar{background:var(--brand-grad);color:#fff;width:36px;height:36px;box-shadow:var(--brand-glow);border-radius:50%;flex:none;place-items:center;font-size:13px;font-weight:800;display:grid}.avatar img{object-fit:cover;border-radius:50%;width:100%;height:100%}.page{flex-direction:column;gap:22px;width:100%;max-width:1180px;margin:0 auto;padding:30px 24px 64px;display:flex}.page-head{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:16px;display:flex}.row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.stack{flex-direction:column;gap:12px;display:flex}.grid2{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px;display:grid}.spacer{flex:1}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}.card.flat{box-shadow:none}.card.glow{border-color:color-mix(in srgb, var(--brand) 35%, var(--line));box-shadow:var(--shadow), 0 0 0 4px color-mix(in srgb, var(--brand) 8%, transparent)}.empty{text-align:center;color:var(--ink-2);padding:40px 20px}button,.btn{font:inherit;cursor:pointer;border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--surface);color:var(--ink);white-space:nowrap;letter-spacing:-.005em;justify-content:center;align-items:center;gap:8px;padding:9px 16px;font-weight:700;text-decoration:none;transition:background .15s,border-color .15s,box-shadow .15s,transform 60ms,filter .15s;display:inline-flex}button:hover,.btn:hover{background:var(--surface-2);border-color:var(--line-strong);text-decoration:none}button:active,.btn:active{transform:translateY(1px)}button:disabled{opacity:.5;cursor:not-allowed}button.primary,.btn.primary{background:var(--brand-grad);color:var(--brand-ink);box-shadow:var(--brand-glow), inset 0 1px 0 #ffffff38;border-color:#0000}button.primary:hover,.btn.primary:hover{background:var(--brand-grad);filter:brightness(1.07)saturate(1.05);border-color:#0000}button.primary:disabled{box-shadow:none}button.danger,.btn.danger{color:var(--bad);border-color:color-mix(in srgb, var(--bad) 35%, var(--line))}button.danger:hover{background:var(--bad-soft)}button.danger.solid{background:var(--bad);color:#fff;border-color:var(--bad);box-shadow:0 8px 20px -8px color-mix(in srgb, var(--bad) 70%, transparent)}button.danger.solid:hover{filter:brightness(1.06)}button.ghost{background:0 0;border-color:#0000}button.ghost:hover{background:var(--surface-2)}button.small,.btn.small{border-radius:9px;padding:5px 11px;font-size:13px}button.big,.btn.big{border-radius:13px;padding:13px 24px;font-size:16px}button.huge,.btn.huge{border-radius:18px;padding:20px 34px;font-size:20px;font-weight:800}label.field{color:var(--ink-2);flex-direction:column;gap:6px;font-size:13px;font-weight:650;display:flex}input,select,textarea{font:inherit;color:var(--ink);background:var(--surface);border:1px solid var(--line-strong);border-radius:var(--radius-sm);outline:none;width:100%;padding:10px 12px;transition:border-color .15s,box-shadow .15s}input::placeholder,textarea::placeholder{color:var(--ink-3)}input:hover,select:hover,textarea:hover{border-color:color-mix(in srgb, var(--brand) 35%, var(--line-strong))}input:focus,select:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 4px color-mix(in srgb, var(--brand) 16%, transparent)}textarea{resize:vertical;min-height:120px}input[type=checkbox],input[type=radio]{width:auto;accent-color:var(--brand)}.check{color:var(--ink);cursor:pointer;align-items:flex-start;gap:10px;font-weight:500;display:flex}.check input{margin-top:4px}.hint{color:var(--ink-3);font-size:12.5px;font-weight:500}.alert{border-radius:var(--radius-sm);border:1px solid #0000;padding:11px 14px;font-size:14px;font-weight:600}.alert.err{background:var(--bad-soft);color:var(--bad);border-color:color-mix(in srgb, var(--bad) 20%, transparent)}.alert.ok{background:var(--ok-soft);color:var(--ok);border-color:color-mix(in srgb, var(--ok) 20%, transparent)}.alert.warn{background:var(--warn-soft);color:var(--warn);border-color:color-mix(in srgb, var(--warn) 20%, transparent)}.alert.info{background:var(--brand-soft);color:var(--brand);border-color:color-mix(in srgb, var(--brand) 20%, transparent)}.pill{background:var(--surface-2);color:var(--ink-2);white-space:nowrap;border-radius:99px;align-items:center;gap:6px;padding:3px 10px;font-size:12.5px;font-weight:700;display:inline-flex}.pill.brand{background:var(--brand-soft);color:var(--brand)}.pill.live{background:var(--bad-soft);color:var(--bad)}.pill.live:before{content:"";background:currentColor;border-radius:50%;width:7px;height:7px;animation:1.4s infinite pulse}.pill.present{background:var(--ok-soft);color:var(--ok)}.pill.late{background:var(--info-soft);color:var(--info)}.pill.partial{background:var(--warn-soft);color:var(--warn)}.pill.absent{background:var(--bad-soft);color:var(--bad)}.pill.flag{background:var(--warn-soft);color:var(--warn)}@keyframes pulse{50%{opacity:.35}}.dot{background:var(--ink-3);border-radius:50%;flex:none;width:9px;height:9px;display:inline-block}.dot.on{background:var(--ok);box-shadow:0 0 0 3px var(--ok-soft)}.table-wrap{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:14px}th{text-align:left;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-3);border-bottom:1px solid var(--line);background:var(--surface-2);white-space:nowrap;padding:11px 12px;font-size:11.5px;font-weight:750}td{border-bottom:1px solid var(--line);vertical-align:middle;padding:10px 12px}tr:last-child td{border-bottom:none}tbody tr{transition:background .12s}tbody tr:hover td{background:color-mix(in srgb, var(--brand) 3.5%, transparent)}td.num{font-variant-numeric:tabular-nums;white-space:nowrap}.stats{grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:10px;display:grid}.stat{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:12px 14px}.stat b{font-variant-numeric:tabular-nums;letter-spacing:-.02em;font-size:25px;font-weight:800;display:block}.stat span{color:var(--ink-2);font-size:12.5px;font-weight:600}.modal-back{-webkit-backdrop-filter:blur(6px);z-index:50;background:#050a1980;place-items:center;padding:16px;animation:.15s ease-out fade;display:grid;position:fixed;inset:0}.modal{background:var(--surface);border:1px solid var(--line);width:min(560px,100%);max-height:90vh;box-shadow:var(--shadow-lg);border-radius:20px;flex-direction:column;gap:16px;padding:24px;animation:.18s ease-out rise;display:flex;overflow:auto}@keyframes fade{0%{opacity:0}}@keyframes rise{0%{opacity:0;transform:translateY(8px)scale(.985)}}.center-page{place-items:center;min-height:100%;padding:24px 16px;display:grid}.auth-card{flex-direction:column;gap:18px;width:min(440px,100%);display:flex}.suggest{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface);box-shadow:var(--shadow);margin-top:-4px;overflow:hidden}.suggest button{border:none;border-bottom:1px solid var(--line);border-radius:0;justify-content:flex-start;width:100%;font-weight:600}.suggest button:last-child{border-bottom:none}.auth-split{grid-template-columns:1.05fr 1fr;min-height:100%;display:grid}.auth-art{color:#e8eeff;background:radial-gradient(700px 400px at 20% 0,#00b8ff59,#0000 60%),radial-gradient(700px 500px at 100% 100%,#5b48e873,#0000 60%),#071233;flex-direction:column;justify-content:space-between;gap:30px;padding:44px;display:flex;position:relative;overflow:hidden}.auth-art:after{content:"";pointer-events:none;opacity:.5;background-image:linear-gradient(#ffffff0d 1px,#0000 1px),linear-gradient(90deg,#ffffff0d 1px,#0000 1px);background-size:44px 44px;position:absolute;inset:0;-webkit-mask-image:radial-gradient(at 30% 30%,#000 30%,#0000 75%);mask-image:radial-gradient(at 30% 30%,#000 30%,#0000 75%)}.auth-art>*{z-index:1;position:relative}.auth-art .logo{color:#fff}.auth-art h2{letter-spacing:-.03em;font-size:clamp(26px,3vw,38px);line-height:1.12}.auth-art ul{gap:12px;margin:0;padding:0;list-style:none;display:grid}.auth-art li{color:#c3cdee;align-items:flex-start;gap:12px;display:flex}.auth-art li b{color:#fff}.auth-art li i{background:#ffffff14;border:1px solid #ffffff1f;border-radius:9px;flex:none;place-items:center;width:30px;height:30px;font-style:normal;display:grid}.auth-side{place-items:center;padding:32px 18px;display:grid}.google-btn{background:var(--surface);border:1px solid var(--line-strong);width:100%;box-shadow:var(--shadow);border-radius:13px;padding:13px 18px;font-size:15.5px}.google-btn svg{width:20px;height:20px}.or{color:var(--ink-3);text-transform:uppercase;letter-spacing:.08em;align-items:center;gap:12px;font-size:12.5px;font-weight:700;display:flex}.or:before,.or:after{content:"";background:var(--line);flex:1;height:1px}@media (width<=860px){.auth-split{grid-template-columns:1fr}.auth-art{gap:18px;padding:26px 20px}.auth-art ul{display:none}}.check-pop{z-index:60;background:var(--surface);color:var(--ink);text-align:center;width:min(380px,92vw);box-shadow:0 30px 80px #00000080, 0 0 0 6px color-mix(in srgb, var(--attn) 25%, transparent);border:2px solid var(--attn);border-radius:22px;flex-direction:column;gap:14px;padding:28px;display:flex;position:fixed;top:50%;left:50%;transform:translate(-50%,-50%)}.check-pop .timer{font-variant-numeric:tabular-nums;color:var(--attn);font-size:42px;font-weight:800}.code-box{font:800 28px/1 var(--mono);letter-spacing:.18em;background:var(--surface-2);border-radius:var(--radius-sm);padding:10px 14px}@media (width<=860px){.topbar{flex-wrap:wrap;gap:10px;padding:10px 16px}.nav{scrollbar-width:none;flex:1 0 100%;order:3;width:100%;overflow-x:auto}.nav a{white-space:nowrap}.page{padding:20px 16px 48px}h1{font-size:23px}.user-chip .who{display:none}}.landing{flex-direction:column;min-height:100%;display:flex}.landing .topbar{background:color-mix(in srgb, var(--bg) 70%, transparent)}.hero-wrap{position:relative;overflow:hidden}.hero-wrap:before{content:"";pointer-events:none;background:radial-gradient(600px 340px at 72% 30%,#2563ff38,#0000 70%),radial-gradient(500px 300px at 20% 10%,#00b8ff29,#0000 70%);height:760px;position:absolute;inset:-20% -10% auto}.hero-wrap:after{content:"";pointer-events:none;opacity:.55;background-image:linear-gradient(color-mix(in srgb, var(--brand) 9%, transparent) 1px, transparent 1px), linear-gradient(90deg, color-mix(in srgb, var(--brand) 9%, transparent) 1px, transparent 1px);background-size:48px 48px;position:absolute;inset:0;-webkit-mask-image:radial-gradient(70% 60% at 50% 20%,#000 20%,#0000 75%);mask-image:radial-gradient(70% 60% at 50% 20%,#000 20%,#0000 75%)}.hero{z-index:1;grid-template-columns:1.1fr 1fr;align-items:center;gap:48px;width:100%;max-width:1180px;margin:0 auto;padding:64px 24px 48px;display:grid;position:relative}.hero h1{letter-spacing:-.04em;margin:18px 0;font-size:clamp(34px,5.2vw,58px);font-weight:800;line-height:1.03}.hero h1 em{background:var(--brand-grad);color:#0000;-webkit-background-clip:text;background-clip:text;font-style:normal}.lead{color:var(--ink-2);max-width:560px;font-size:17.5px}.join-box{background:var(--surface);border:1px solid var(--line);max-width:520px;box-shadow:var(--shadow-lg);border-radius:16px;gap:10px;margin:28px 0 8px;padding:6px;display:flex}.join-box input{font:700 18px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;box-shadow:none;background:0 0;border:none;padding:12px 14px}.join-box input:focus{box-shadow:none}.join-box input::placeholder{font:500 15px var(--font);letter-spacing:0;text-transform:none}.hero-card{box-shadow:var(--shadow-lg);flex-direction:column;gap:12px;display:flex;transform:perspective(1200px)rotateY(-6deg)rotateX(3deg)}.hero-badges{color:var(--ink-2);flex-wrap:wrap;gap:18px;margin-top:22px;font-size:13.5px;font-weight:650;display:flex}.hero-badges span{align-items:center;gap:7px;display:inline-flex}.hero-badges span:before{content:"✓";background:var(--brand-soft);width:18px;height:18px;color:var(--brand);border-radius:50%;place-items:center;font-size:11px;display:grid}.grid3{grid-template-columns:repeat(3,1fr);gap:14px;display:grid}.feature{gap:10px;transition:transform .18s,box-shadow .18s,border-color .18s}.feature:hover{border-color:color-mix(in srgb, var(--brand) 30%, var(--line));box-shadow:var(--shadow-lg);transform:translateY(-3px)}.feature-ico{background:var(--brand-soft);border:1px solid color-mix(in srgb, var(--brand) 18%, transparent);border-radius:13px;place-items:center;width:46px;height:46px;font-size:22px;display:grid}.section-title{text-align:center;flex-direction:column;align-items:center;gap:8px;margin-top:18px;display:flex}.section-title h2{letter-spacing:-.03em;font-size:clamp(24px,3vw,34px)}.section-title p{max-width:620px}.step-num{background:var(--brand-grad);width:36px;height:36px;color:var(--brand-ink);box-shadow:var(--brand-glow);border-radius:11px;flex:none;place-items:center;font-weight:800;display:grid}.cta{color:#e8eeff;background:radial-gradient(600px 300px at 90% 0,#00b8ff59,#0000 60%),radial-gradient(600px 300px at 0 100%,#5b48e866,#0000 60%),#0a1640;border:none;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px;padding:32px;display:flex}.cta .muted{color:#b9c5ea}.cta h2{color:#fff;font-size:24px}.pricing{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;display:grid}.price-card{flex-direction:column;gap:12px;display:flex}.price-card.hot{border-color:color-mix(in srgb, var(--brand) 50%, var(--line));box-shadow:var(--shadow-lg), 0 0 0 4px color-mix(in srgb, var(--brand) 10%, transparent)}.price{letter-spacing:-.03em;font-size:30px;font-weight:800}.price small{font-size:14px;font-weight:600}.price-card ul{color:var(--ink-2);gap:7px;margin:0;padding:0;font-size:14px;list-style:none;display:grid}.price-card li:before{content:"✓  ";color:var(--brand);font-weight:800}.footer{border-top:1px solid var(--line);color:var(--ink-2);flex-wrap:wrap;justify-content:space-between;gap:14px;margin-top:auto;padding:22px 24px;font-size:14px;display:flex}.footer a{color:var(--ink-2)}@media (width<=860px){.hero{grid-template-columns:1fr;gap:28px;padding:34px 16px 24px}.hero-card{transform:none}.grid3{grid-template-columns:1fr}.join-box{flex-direction:column}.cta{padding:22px}}.settings-summary{background:var(--surface-2);border-radius:12px;justify-content:space-between;align-items:center;gap:14px;padding:12px 14px;display:flex}.dropzone{border:2px dashed var(--line-strong);border-radius:var(--radius);text-align:center;cursor:pointer;background:var(--surface);flex-direction:column;align-items:center;gap:8px;padding:28px 20px;transition:border-color .15s,background .15s;display:flex}.dropzone:hover,.dropzone.over{border-color:var(--brand);background:var(--brand-soft)}.dropzone .big-icon{font-size:34px}.name-list{border:1px solid var(--line);background:var(--surface);border-radius:12px;flex-direction:column;max-height:420px;display:flex;overflow:auto}.name-row{border-bottom:1px solid var(--line);align-items:center;gap:10px;padding:7px 12px;display:flex}.name-row:last-child{border-bottom:none}.name-row .n{width:28px;color:var(--ink-3);font-variant-numeric:tabular-nums;font-size:13px}.name-row input{box-shadow:none;background:0 0;border:none;padding:4px 0}.name-row input:focus{box-shadow:none}.lesson-card{color:inherit;align-items:center;gap:16px;text-decoration:none;transition:border-color .15s,transform .15s,box-shadow .15s;display:flex}.lesson-card:hover{border-color:color-mix(in srgb, var(--brand) 45%, var(--line));box-shadow:var(--shadow-lg);text-decoration:none;transform:translateY(-1px)}.lesson-card .when{text-align:center;background:var(--brand-soft);width:66px;color:var(--brand);border-radius:13px;flex:none;padding:9px 4px}.lesson-card .when b{font-size:21px;line-height:1;display:block}.lesson-card .when span{opacity:.85;font-size:12px;font-weight:700}.lesson-card.live{border-color:color-mix(in srgb, var(--bad) 45%, var(--line))}.lesson-card.live .when{background:var(--bad-soft);color:var(--bad)}.steps{gap:10px;display:grid}.step{background:var(--surface);border:1px solid var(--line);border-radius:14px;align-items:center;gap:14px;padding:14px 16px;display:flex}.step.done{opacity:.6}.step .num{background:var(--brand-soft);width:32px;height:32px;color:var(--brand);border-radius:10px;flex:none;place-items:center;font-weight:800;display:grid}.step.done .num{background:var(--ok-soft);color:var(--ok)}.waiting-box{background:var(--brand-soft);color:var(--ink);border:1px solid color-mix(in srgb, var(--brand) 18%, transparent);border-radius:14px;align-items:center;gap:12px;padding:14px 16px;display:flex}.waiting-box>div{flex:1}.spinner{border:3px solid color-mix(in srgb, var(--brand) 25%, transparent);border-top-color:var(--brand);border-radius:50%;flex:none;width:22px;height:22px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.chips{flex-wrap:wrap;gap:6px;display:flex}.chip{background:var(--surface-2);border:1px solid var(--line);color:var(--ink-2);border-radius:99px;padding:5px 12px;font-size:13px;font-weight:700}.chip.on{background:var(--brand-grad);color:var(--brand-ink);box-shadow:var(--brand-glow);border-color:#0000}.live-stats{flex-wrap:wrap;gap:6px;display:flex}.live-stats span{background:var(--surface-2);color:var(--ink-2);border-radius:99px;padding:4px 11px;font-size:13px;font-weight:700}.live-stats b{color:var(--ink);font-variant-numeric:tabular-nums;margin-right:4px}.live-stats .s-ok b{color:var(--ok)}.live-stats .s-info b{color:var(--info)}.live-stats .s-warn b{color:var(--warn)}.live-stats .s-bad b{color:var(--bad)}.live-list{flex-direction:column;display:flex}.live-row{border-bottom:1px solid var(--line);align-items:center;gap:10px;padding:9px 2px;display:flex}.live-row:last-child{border-bottom:none}.live-row .nm{text-overflow:ellipsis;flex:1;min-width:0;font-weight:600;overflow:hidden}.live-row .meta{color:var(--ink-3);font-variant-numeric:tabular-nums;font-size:12px;font-weight:500}.lesson-stat{color:inherit;flex-direction:column;gap:10px;padding:14px 16px;text-decoration:none;display:flex}.lesson-stat:hover{border-color:var(--brand);text-decoration:none}.lesson-stat-head{justify-content:space-between;align-items:center;gap:12px;display:flex}.lesson-stat-num{text-align:right;font-variant-numeric:tabular-nums;color:var(--ink-2);white-space:nowrap}.lesson-stat-num b{color:var(--ink);font-size:22px}.lesson-stat-num span{font-size:11px;display:block}.bar{background:var(--surface-2);border-radius:99px;width:100%;height:8px;display:flex;overflow:hidden}.bar.small{flex:none;width:90px;height:6px}.bar i{height:100%;display:block}.legend{vertical-align:-1px;border-radius:3px;width:10px;height:10px;margin-right:5px;display:inline-block}button.dashed{color:var(--brand);border-style:dashed;border-color:color-mix(in srgb, var(--brand) 40%, var(--line));background:0 0}button.dashed:hover{background:var(--brand-soft)}.empty-hero{text-align:center;flex-direction:column;align-items:center;gap:12px;padding:44px 24px 28px;display:flex}.empty-hero-icon{background:var(--brand-soft);border:1px solid color-mix(in srgb, var(--brand) 18%, transparent);border-radius:24px;place-items:center;width:80px;height:80px;font-size:36px;display:grid}.empty-hero h2{font-size:24px}.empty-hero>p{max-width:460px}.empty-hero>button{margin-top:6px}.how{border-top:1px solid var(--line);grid-template-columns:repeat(3,1fr);gap:12px;width:100%;max-width:760px;margin-top:26px;padding-top:22px;display:grid}.how>div{flex-direction:column;align-items:center;gap:4px;display:flex}.how .num{background:var(--brand-soft);width:28px;height:28px;color:var(--brand);border-radius:9px;place-items:center;margin-bottom:4px;font-size:13px;font-weight:800;display:grid}.how small{color:var(--ink-3)}@media (width<=640px){.how{grid-template-columns:1fr}}.join-card{flex-wrap:wrap;align-items:center;gap:22px;display:flex}.qr-btn{border:1px solid var(--line);cursor:zoom-in;background:#fff;border-radius:14px;padding:8px}.qr-btn:hover{background:#fff;transform:scale(1.02)}.qr-btn img{width:150px;height:150px;display:block}a.btn.small{border-radius:9px;padding:5px 11px;font-size:13px}a.btn.tg{color:#229ed9}.qr-full{z-index:80;cursor:zoom-out;color:#e8eeff;background:radial-gradient(800px 500px at 50% 0,#2563ff73,#0000 70%),#060c22;flex-direction:column;justify-content:center;align-items:center;gap:18px;display:flex;position:fixed;inset:0}.qr-full img{background:#fff;border-radius:22px;width:min(70vh,86vw);height:auto;padding:16px;box-shadow:0 30px 80px #00000080}.qr-full-code{font:800 clamp(40px, 9vh, 96px)/1 var(--mono);letter-spacing:.2em;color:#6fa4ff}.qr-full-url{color:#c3cdee;font-size:clamp(18px,3vh,30px);font-weight:700}.qr-full .hint{color:#8b98bd}.grant-btns{gap:4px;display:inline-flex}.gbtn{opacity:.45;background:var(--surface-2);border-radius:8px;width:30px;height:30px;padding:0;font-size:14px}.gbtn.on{opacity:1;background:var(--brand-soft);border-color:var(--brand)}.gbtn:hover{opacity:1}.tabs{border-bottom:1px solid var(--line);scrollbar-width:none;gap:2px;display:flex;overflow-x:auto}.tabs button{white-space:nowrap;color:var(--ink-2);background:0 0;border:none;border-bottom:2px solid #0000;border-radius:0;flex-shrink:0;padding:10px 14px}.tabs button:hover{color:var(--ink);background:0 0}.tabs button.on{color:var(--brand);border-bottom-color:var(--brand)}.a-cards{grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;display:grid}.a-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);flex-direction:column;gap:4px;padding:18px;display:flex}.a-card .a-ico{font-size:20px}.a-card b{font-variant-numeric:tabular-nums;letter-spacing:-.03em;font-size:34px;font-weight:800;line-height:1.1}.a-card span{color:var(--ink-2);font-weight:600}.a-card small{color:var(--ink-3);font-size:12px}.a-bars{align-items:flex-end;gap:6px;height:210px;padding-top:20px;display:flex}.a-bars.small{gap:3px;height:150px}.a-bar{flex-direction:column;flex:1;justify-content:flex-end;align-items:center;min-width:0;height:100%;display:flex}.a-bar i{background:linear-gradient(180deg, var(--brand-2), var(--brand));border-radius:6px 6px 2px 2px;width:100%;min-height:2px;display:block}.a-bar-n{color:var(--ink-2);margin-bottom:4px;font-size:11px;font-weight:700}.a-bar-l{color:var(--ink-3);white-space:nowrap;margin-top:6px;font-size:11px}.a-bars.small .a-bar-l{font-size:9px}.a-grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px;display:grid}.a-row{flex-direction:column;gap:4px;font-size:14px;display:flex}.a-visitors{grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:10px;display:grid}.a-visitor{text-align:left;width:100%;padding:14px;font-weight:400;display:block}.a-visitor:hover{border-color:var(--brand);background:var(--surface)}.a-dev{font-size:26px;line-height:1}.a-kv{grid-template-columns:max-content 1fr;gap:6px 14px;font-size:14px;display:grid}.a-kv span{color:var(--ink-2)}@media (width<=640px){.a-bars .a-bar-l{display:none}.a-visitors{grid-template-columns:1fr}}.rec-card{flex-direction:column;gap:12px;padding:14px 16px;display:flex}.rec-num{background:var(--brand-soft);width:30px;height:30px;color:var(--brand);border-radius:9px;flex:none;place-items:center;font-weight:800;display:grid}.rec-video{background:#000;border-radius:12px;width:100%;max-height:70vh}.player{background:#000;border-radius:14px;position:relative;overflow:hidden}.player video{background:#000;width:100%;max-height:70vh;display:block}.player:fullscreen{border-radius:0;align-items:center;display:flex}.yt-frame{aspect-ratio:16/9;width:100%;max-height:70vh}.yt-frame iframe{border:0;width:100%;height:100%;display:block}:is(.player:fullscreen .yt-frame,.player.full .yt-frame){aspect-ratio:auto;height:100%;max-height:none}.player:fullscreen video{height:100%;max-height:100vh}.player.full{z-index:90;border-radius:0;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.player.full video{object-fit:contain;width:100%;height:100%;max-height:none}.player-exit{top:max(10px, env(safe-area-inset-top));right:max(10px, env(safe-area-inset-right));z-index:2;color:#fff;background:#0000008c;border:1px solid #ffffff40;border-radius:50%;width:40px;height:40px;padding:0;position:absolute}.group-select{border:1px dashed var(--line-strong);background:var(--surface);border-radius:12px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:12px 14px;display:flex}.pick-row{border:1px solid var(--line);background:var(--surface);border-radius:12px;flex-wrap:wrap;align-items:center;gap:8px;padding:10px 12px;transition:border-color .15s,background .15s;display:flex}.pick-row.on{border-color:var(--brand);background:var(--brand-soft)}.roster-preview{columns:2;max-height:220px;color:var(--ink-2);margin:4px 0 0;padding-left:22px;font-size:13.5px;overflow:auto}@media (width<=640px){.roster-preview{columns:1}}.pill.brief{background:var(--warn-soft);color:var(--warn);opacity:.85}.pill.inprogress{background:var(--ok-soft);color:var(--ok)}.pill.inprogress:before{content:"";background:currentColor;border-radius:50%;width:6px;height:6px;animation:1.4s infinite pulse}.pill.notyet{background:var(--surface-2);color:var(--ink-3)}.modal.wide{width:min(920px,100%)}tr.clickable{cursor:pointer}tr.clickable:hover td{background:color-mix(in srgb, var(--brand) 6%, transparent)}.a-card.warn{border-color:color-mix(in srgb, var(--warn) 55%, var(--line));background:var(--warn-soft)}.login-row{padding:12px}.login-row.warn{border-left:3px solid var(--warn)}.modal>*{flex-shrink:0}@media (width<=600px){.a-cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.a-card{padding:14px}.a-card b{font-size:28px}}.player-audio{color:#c8d3f0;pointer-events:none;text-align:center;place-items:center;padding:16px;font-weight:600;display:grid;position:absolute;inset:0 0 56px}.player video[src*=\.m4a]{min-height:180px}.cap-card{gap:8px}.cap-card.warn{border-color:color-mix(in srgb, var(--warn) 55%, var(--line))}.cap-card.bad{border-color:color-mix(in srgb, var(--bad) 55%, var(--line))}.cap-num{color:var(--ink-2);font-size:15px}.cap-num b{color:var(--ink);font-variant-numeric:tabular-nums;font-size:34px}.a-card.bad{border-color:color-mix(in srgb, var(--bad) 55%, var(--line));background:var(--bad-soft)}.a-card .bar{margin:4px 0 2px}.cores{flex-wrap:wrap;align-items:flex-end;gap:8px;display:flex}.core{width:44px;color:var(--ink-2);font-variant-numeric:tabular-nums;flex-direction:column;align-items:center;gap:4px;font-size:12px;display:flex}.core i{background:linear-gradient(180deg, var(--brand-2), var(--brand));border-radius:4px 4px 0 0;width:100%;height:0;min-height:2px;display:block}.core{justify-content:flex-end;height:90px}.core i.warn{background:var(--warn)}.core i.bad{background:var(--bad)}.charts{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:12px;display:grid}.chart{flex-direction:column;gap:6px;margin:0;padding:12px 14px;display:flex}.chart svg{touch-action:none;width:100%;height:150px}.chart .grid{stroke:var(--line);stroke-width:1px;vector-effect:non-scaling-stroke}.chart .tick{fill:var(--ink-2);font-size:11px}.chart .line{fill:none;stroke:var(--brand);stroke-width:2px;vector-effect:non-scaling-stroke;stroke-linejoin:round}.chart .area{fill:var(--brand);opacity:.12}.chart .cross{stroke:var(--ink-2);stroke-width:1px;stroke-dasharray:3 3;vector-effect:non-scaling-stroke}.chart .dot{fill:var(--brand);stroke:var(--surface);stroke-width:2px;vector-effect:non-scaling-stroke}.journal{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);flex-direction:column;display:flex;overflow:hidden}.journal-row{border-top:1px solid var(--line);cursor:pointer;align-items:flex-start;gap:12px;padding:9px 12px;display:flex}.journal-row:first-child{border-top:none}.journal-row:hover{background:color-mix(in srgb, var(--brand) 5%, transparent)}.journal-row.warn{box-shadow:inset 3px 0 var(--warn)}.journal-row.error{box-shadow:inset 3px 0 var(--bad)}.journal-time{white-space:nowrap;padding-top:3px}.journal-body{overflow-wrap:anywhere;flex-direction:column;flex:1;gap:3px;min-width:0;display:flex}.journal-data{background:var(--bg);white-space:pre-wrap;border-radius:8px;margin:4px 0 0;padding:10px;font-size:12px;overflow-x:auto}@media (width<=600px){.journal-row{flex-direction:column;gap:4px}}.course-head{border-radius:var(--radius);background:linear-gradient(135deg, color-mix(in srgb, var(--brand) 12%, var(--surface)), color-mix(in srgb, var(--brand-2) 8%, var(--surface)));border:1px solid color-mix(in srgb, var(--brand) 25%, var(--line));flex-direction:column;gap:6px;padding:18px 20px;display:flex;position:relative;overflow:hidden}.course-kind{letter-spacing:.08em;text-transform:uppercase;color:var(--brand);font-size:12px;font-weight:750}.course-subject{color:var(--ink);letter-spacing:-.02em;margin:0;font-size:22px;font-weight:800;line-height:1.25}.course-title{color:var(--ink-2);margin:0;font-size:17px;font-weight:600;line-height:1.35}.course-meta{color:var(--ink-2);flex-wrap:wrap;gap:6px 14px;margin-top:4px;font-size:14px;display:flex}.course-teacher{color:var(--ink);align-items:center;gap:7px;font-weight:700;display:inline-flex}.course-teacher i{background:var(--brand-grad);width:26px;height:26px;color:var(--brand-ink);border-radius:50%;place-items:center;font-size:11px;font-style:normal;font-weight:800;display:grid}.topic-page{place-items:start center;padding-top:24px;padding-bottom:48px}.mine-card{border-radius:var(--radius);background:var(--ok-soft);border:1px solid color-mix(in srgb, var(--ok) 40%, var(--line));flex-direction:column;gap:6px;padding:14px 16px;display:flex}.mine-card .course-kind{color:var(--ok)}.mine-title{font-size:18px;line-height:1.35}.topic-list{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);flex-direction:column;display:flex;overflow:hidden}.topic-item{border-top:1px solid var(--line);align-items:center;gap:12px;padding:12px 14px;display:flex}.topic-item:first-child{border-top:none}.topic-item.taken{opacity:.62}.topic-item.mine{background:var(--ok-soft)}.topic-num{background:var(--brand-soft);width:38px;height:38px;color:var(--brand);font-variant-numeric:tabular-nums;border-radius:11px;flex:none;place-items:center;font-weight:800;display:grid}.topic-item.taken .topic-num{background:var(--surface-2,var(--bg));color:var(--ink-2)}.topic-body{overflow-wrap:anywhere;flex-direction:column;flex:1;gap:3px;min-width:0;line-height:1.35;display:flex}tr.row-mine td{background:var(--ok-soft)}.today{flex-direction:column;gap:18px;width:100%;max-width:760px;margin:0 auto;padding:28px 18px 60px;display:flex}.today-date{color:var(--ink-3);text-transform:uppercase;letter-spacing:.08em;font-size:14px;font-weight:700}.today-hero{color:#e8eeff;box-shadow:var(--shadow-lg);background:radial-gradient(500px 260px at 100% 0,#00b8ff66,#0000 65%),radial-gradient(500px 300px at 0 100%,#5b48e873,#0000 65%),#0a1640;border-radius:24px;flex-direction:column;gap:14px;padding:28px;display:flex;position:relative;overflow:hidden}.today-hero .when{font:800 15px var(--font);color:#9fc0ff;letter-spacing:.02em}.today-hero h2{color:#fff;letter-spacing:-.03em;font-size:clamp(24px,4vw,34px)}.today-hero .meta{color:#b9c5ea;font-weight:600}.today-hero .start{color:#0a1640;background:linear-gradient(135deg,#fff,#dce8ff);border:none;border-radius:18px;width:100%;margin-top:8px;padding:22px;font-size:21px;font-weight:800;box-shadow:0 16px 40px -14px #00b8ffcc}.today-hero .start:hover{filter:brightness(1.03);background:linear-gradient(135deg,#fff,#dce8ff)}.today-hero .start.live{color:#fff;background:linear-gradient(135deg,#ff5d73,#ff2e55)}.today-hero .countdown{font:800 46px/1 var(--mono);color:#fff;letter-spacing:-.02em}.today-list{flex-direction:column;gap:10px;display:flex}.today-item{align-items:center;gap:14px;display:flex}.today-item .t{font:800 18px var(--mono);color:var(--brand);flex:none;width:64px}.big-help{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}.bell{position:relative}.bell .badge{background:var(--bad);color:#fff;border-radius:9px;min-width:18px;height:18px;padding:0 5px;font-size:11px;font-weight:800;line-height:18px;position:absolute;top:-4px;right:-4px}.notif-pop{z-index:30;text-align:left;flex-direction:column;gap:4px;width:min(380px,92vw);max-height:70vh;padding:8px;display:flex;position:absolute;top:calc(100% + 8px);right:0;overflow:auto}.notif{color:var(--ink);white-space:normal;border-radius:12px;flex-direction:column;gap:3px;padding:10px 12px;display:flex}.notif:hover{background:var(--surface-2);text-decoration:none}.notif.unread{background:var(--brand-soft)}.notif b{font-size:14px}.notif span{color:var(--ink-2);font-size:13px;font-weight:500}.org-switch select{border-radius:10px;max-width:220px;padding:6px 10px;font-size:13px;font-weight:700}.pay-steps{gap:8px;display:flex}.pay-steps span{background:var(--surface-3);border-radius:99px;flex:1;height:5px}.pay-steps span.on{background:var(--brand-grad)}.plan-opt{border:1px solid var(--line);cursor:pointer;background:var(--surface);border-radius:14px;align-items:center;gap:12px;padding:14px 16px;transition:border-color .15s,background .15s;display:flex}.plan-opt.on{border-color:var(--brand);background:var(--brand-soft)}.plan-opt b{font-size:16px}.kv-copy{background:var(--surface-2);border:1px solid var(--line);border-radius:14px;grid-template-columns:max-content 1fr auto;align-items:center;gap:10px 14px;padding:16px;display:grid}.kv-copy span{color:var(--ink-2);font-size:14px;font-weight:600}.kv-copy b{font-variant-numeric:tabular-nums;overflow-wrap:anywhere;font-size:17px}.kv-copy b.mono{font-family:var(--mono);letter-spacing:.06em;font-size:19px}.receipt-img{border:1px solid var(--line);cursor:zoom-in;background:#fff;border-radius:12px;max-width:100%;max-height:70vh}.receipt-img.zoom{cursor:zoom-out;max-height:none}.hand-q{flex-direction:column;gap:6px;display:flex}.poll-opt{border:1px solid var(--line);background:var(--surface);text-align:left;border-radius:12px;justify-content:space-between;align-items:center;gap:10px;width:100%;padding:10px 12px;font-weight:650;display:flex;position:relative;overflow:hidden}.poll-opt i{background:color-mix(in srgb, var(--brand) 18%, transparent);z-index:0;transition:width .3s;position:absolute;top:0;bottom:0;left:0}.poll-opt>*{z-index:1;position:relative}.poll-opt.mine{border-color:var(--brand)}.poll-opt.correct{border-color:var(--ok)}.ai-fab{z-index:40;background:var(--brand-grad);color:#fff;width:56px;height:56px;box-shadow:var(--brand-glow), 0 18px 40px -12px #2563ff99;border:none;border-radius:18px;padding:0;font-size:24px;position:fixed;bottom:20px;right:20px}.ai-fab:hover{background:var(--brand-grad);filter:brightness(1.08)}.ai-panel{z-index:40;width:min(420px,100vw - 24px);height:min(620px,100vh - 120px);box-shadow:var(--shadow-lg);flex-direction:column;padding:0;animation:.18s ease-out rise;display:flex;position:fixed;bottom:88px;right:20px;overflow:hidden}.ai-head{border-bottom:1px solid var(--line);background:linear-gradient(135deg, color-mix(in srgb, var(--brand) 10%, var(--surface)), var(--surface));align-items:center;gap:10px;padding:14px 16px;display:flex}.ai-list{flex-direction:column;flex:1;gap:10px;padding:14px;display:flex;overflow-y:auto}.ai-msg{background:var(--surface-2);white-space:pre-wrap;overflow-wrap:anywhere;border-radius:15px 15px 15px 5px;max-width:88%;padding:9px 13px;font-size:14.5px}.ai-msg.me{background:var(--brand-grad);color:#fff;border-radius:15px 15px 5px;align-self:flex-end}.ai-card{border:1px solid color-mix(in srgb, var(--brand) 35%, var(--line));background:var(--surface);border-radius:14px;flex-direction:column;gap:6px;padding:14px;font-size:14px;display:flex}.ai-card .guess{color:var(--info)}.ai-input{border-top:1px solid var(--line);gap:8px;padding:10px;display:flex}@media (width<=600px){.ai-panel{bottom:84px;right:12px}.ai-fab{bottom:14px;right:14px}}.legal{max-width:820px}.legal h2{margin-top:10px}.legal p,.legal li{color:var(--ink-2)}.inapp-warn{z-index:70;background:var(--attn-soft);color:var(--warn);text-align:center;border-bottom:1px solid color-mix(in srgb, var(--warn) 30%, transparent);padding:12px 16px;font-weight:700;position:sticky;top:0}@media (width<=860px){.hide-m{display:none!important}}.icon-btn{border-radius:11px;flex:none;width:38px;height:38px;padding:0}.ai-card .guess{color:var(--info);font-weight:650}.lang-switch{flex:none;position:relative}.lang-btn{background:var(--surface);border-radius:11px;gap:8px;padding:6px 10px;font-size:13.5px}.lang-btn .caret{color:var(--ink-3);font-size:10px}.lang-short{display:none}.flag{border-radius:3px;flex:none;display:block;box-shadow:0 0 0 1px #0000001f}.lang-pop{z-index:60;background:var(--surface);border:1px solid var(--line);min-width:200px;box-shadow:var(--shadow-lg);border-radius:14px;flex-direction:column;gap:2px;padding:6px;animation:.14s ease-out rise;display:flex;position:absolute;top:calc(100% + 6px);right:0}.lang-pop button{background:0 0;border:none;border-radius:9px;justify-content:flex-start;gap:10px;padding:8px 10px;font-weight:600}.lang-pop button:hover{background:var(--surface-2)}.lang-pop button.on{background:var(--brand-soft);color:var(--brand)}.lang-pop button b{margin-left:auto}.lang-switch.dark .lang-btn{color:#eaf0ff;background:#ffffff12;border-color:#ffffff24}.lang-switch.dark .lang-pop{color:#e8eeff;background:#0f1729;border-color:#1e2a47}.lang-switch.dark .lang-pop button{color:#e8eeff}.lang-switch.dark .lang-pop button:hover{background:#141e35}.lang-switch.dark .lang-pop button.on{color:#8fb3ff;background:#13234a}@media (width<=860px){.lang-name{display:none}.lang-short{display:inline}}.gbtn{color:#1f1f1f;cursor:pointer;background:#fff;border:1px solid #dadce0;border-radius:999px;justify-content:center;align-items:center;gap:10px;width:100%;min-height:46px;font-size:15px;font-weight:600;display:flex}.gbtn:hover{background:#f6f8fc}.gbtn:disabled{opacity:.7;cursor:wait}