:root{--bg: #f4f1ea;--card: #ffffff;--ink: #1f2430;--muted: #6b7080;--line: #e3ddd0;--accent: #2f6fed;--accent-ink: #ffffff;--ok: #1f9d5a;--ok-bg: #e5f6ec;--bad: #d6453d;--bad-bg: #fbe9e7;--chip: #efeadf;--radius: 16px;font-family:ui-rounded,SF Pro Rounded,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg)}@media (prefers-color-scheme: dark){:root{--bg: #15171c;--card: #1f232b;--ink: #eceef3;--muted: #9aa0ad;--line: #2e333d;--accent: #5b8cff;--ok: #4cc785;--ok-bg: #173226;--bad: #ff7b72;--bad-bg: #3a1f1d;--chip: #2a2f39}}*{box-sizing:border-box}body{margin:0;background:var(--bg);min-height:100vh}h1,h2,h3,h4{margin:0 0 12px;line-height:1.25}h1{font-size:28px}h3{font-size:18px}h4{font-size:14px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-top:16px}p{line-height:1.5}.screen{max-width:820px;margin:0 auto;padding:24px 16px 96px}.screen.center{min-height:100vh;display:flex;align-items:center;justify-content:center}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;margin-bottom:16px}.card.narrow{width:100%;max-width:460px}.eyebrow{font-size:13px;font-weight:600;color:var(--muted);margin-bottom:6px}.muted{color:var(--muted);font-size:14px}.error{color:var(--bad)}.tag{display:inline-block;background:var(--chip);border-radius:999px;padding:4px 12px;font-size:13px;font-weight:600;margin-bottom:14px}button{font:inherit;cursor:pointer;border-radius:12px;border:1px solid transparent;padding:10px 18px}button:disabled{cursor:default;opacity:.55}.primary{background:var(--accent);color:var(--accent-ink);font-weight:700}.primary.big{width:100%;padding:16px;font-size:18px;margin:8px 0 16px}.secondary{background:var(--chip);color:var(--ink)}.danger{background:var(--bad-bg);color:var(--bad);font-weight:600}.link{background:none;color:var(--muted);padding:6px;text-decoration:underline}.row{display:flex;gap:10px;justify-content:flex-end}.row.wrap{flex-wrap:wrap;justify-content:flex-start}.quiz-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:16px}.progress{display:flex;gap:6px}.dot{width:28px;height:8px;border-radius:4px;background:var(--line)}.dot.done{background:var(--ok)}.prompt{font-size:24px;margin-bottom:20px}.choices{display:grid;grid-template-columns:1fr 1fr;gap:12px}@media (max-width: 560px){.choices{grid-template-columns:1fr}.prompt{font-size:20px}}.choice{display:flex;align-items:center;gap:12px;text-align:left;background:var(--card);color:var(--ink);border:2px solid var(--line);padding:14px 16px;font-size:17px}.choice:not(:disabled):hover{border-color:var(--accent)}.choice.right{border-color:var(--ok);background:var(--ok-bg);opacity:1}.choice.wrong{border-color:var(--bad);background:var(--bad-bg);opacity:1}.letter{flex:none;width:28px;height:28px;border-radius:8px;background:var(--chip);display:grid;place-items:center;font-weight:700;font-size:14px}.feedback{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin-top:20px;padding:14px 16px;border-radius:12px;background:var(--chip)}.feedback.ok{background:var(--ok-bg)}.feedback.bad{background:var(--bad-bg)}.feedback strong{margin-right:4px}.frame{position:relative;padding-top:56.25%;border-radius:12px;overflow:hidden;background:#000}.frame iframe{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;border:0}.video-hint{padding:24px;border:2px dashed var(--line);border-radius:12px;text-align:center}.home .status{font-size:26px;font-weight:800;margin:8px 0}.status.open{color:var(--ok)}.status.closed{color:var(--bad)}.home .topics{font-size:14px;margin:8px 0 12px;line-height:1.5}.field{display:flex;flex-direction:column;gap:6px;font-size:14px;font-weight:600;margin-bottom:14px}input[type=password],input[type=number],input[type=date],input:not([type]),textarea{font:inherit;font-weight:400;padding:10px 12px;border-radius:10px;border:1px solid var(--line);background:var(--bg);color:var(--ink);width:100%}textarea{resize:vertical}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}@media (max-width: 560px){.grid2{grid-template-columns:1fr}}.grades{display:flex;flex-wrap:wrap;gap:8px}.chip{background:var(--chip);color:var(--ink)}.chip.on{background:var(--accent);color:var(--accent-ink);font-weight:700}.check{display:flex;gap:10px;align-items:center;padding:8px 0;border-bottom:1px solid var(--line)}.check.small{border:0;font-size:14px;color:var(--muted)}.check input{width:18px;height:18px}.savebar{position:fixed;left:0;right:0;bottom:0;display:flex;justify-content:flex-end;align-items:center;gap:16px;padding:12px 16px;background:var(--card);border-top:1px solid var(--line)}select{font:inherit;font-weight:400;padding:10px 12px;border-radius:10px;border:1px solid var(--line);background:var(--bg);color:var(--ink);width:100%}input[type=radio]{width:18px;height:18px;flex:none}.check span{line-height:1.4}.badge{display:inline-block;margin-left:8px;padding:1px 8px;border-radius:999px;background:var(--chip);font-size:12px;color:var(--muted)}.listrow{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}.row.inline{margin:10px 0 4px}.row.inline input{flex:1}.filebtn{display:inline-block;cursor:pointer;padding:10px 18px;border-radius:12px}.okmsg{color:var(--ok)}.applist{max-height:260px;overflow-y:auto;margin:8px 0;border:1px solid var(--line);border-radius:10px;padding:0 12px}.warnbar{position:fixed;top:16px;right:16px;left:16px;max-width:380px;margin-left:auto;background:#1b1f29;color:#fff;border-radius:16px;padding:14px 18px;display:flex;gap:14px;align-items:center;box-shadow:0 8px 24px #0000004d;z-index:10}.warnbar .sec{font-size:32px;font-weight:800;color:#ffd166;min-width:56px;text-align:center}.tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}.tags .tag{margin-bottom:0}.examtag{background:#fff1c9;color:#7a5300}.examtag.ex{background:#ffe1dc;color:#9b2c22}@media (prefers-color-scheme: dark){.examtag{background:#4a3b10;color:#ffd98a}.examtag.ex{background:#4a1f1b;color:#ffb3aa}}.exams{text-align:left;margin:12px 0;display:grid;gap:8px}.exam{border-radius:12px;padding:10px 12px;background:var(--chip);font-size:14px;line-height:1.4}.exam.soon{background:#fff1c9;color:#5c3f00}.exam.ex{background:#ffe1dc;color:#7d231b}@media (prefers-color-scheme: dark){.exam.soon{background:#4a3b10;color:#ffe2a3}.exam.ex{background:#4a1f1b;color:#ffc4bd}}.subjectpick{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:14px}.subjectpick .chip{padding:6px 12px;font-size:14px}.bankbar{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:14px 18px;border-radius:var(--radius);background:var(--card);border:1px solid var(--line)}.bankbar .bank{font-size:20px;font-weight:800;color:var(--ok)}.streak{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;background:var(--chip);font-size:13px;font-weight:700;margin:4px 0 8px}.row.stack{flex-direction:column;align-items:stretch}.status.warm{color:var(--accent)}.tag.lvl{background:var(--chip)}.tag.lvl .dots{letter-spacing:1px;color:var(--accent)}.levelup{color:var(--accent)}.howto{background:var(--chip);border-radius:12px;padding:10px 14px;font-size:14px}.howto summary{cursor:pointer;font-weight:600}.howto ol{margin:8px 0 0;padding-left:20px;line-height:1.6}.muted.small{font-size:13px;margin:0 0 10px}.grid3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:0 16px}@media (max-width: 560px){.grid3{grid-template-columns:1fr}}input[type=time]{font:inherit;font-weight:400;padding:10px 12px;border-radius:10px;border:1px solid var(--line);background:var(--bg);color:var(--ink);width:100%}.dayrule h4{margin-top:8px}.familycode{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 16px;border-radius:12px;background:var(--chip);margin-bottom:8px}.familycode .code{font-size:26px;font-weight:800;letter-spacing:4px}.groupbox{border:1px solid var(--line);border-radius:12px;padding:12px 14px 4px;margin-bottom:10px}.groupbox .link{margin-left:8px}.devname{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.devname input{width:auto;min-width:140px;padding:6px 10px}.listrow select{width:auto;padding:6px 10px}.listrow.removed{opacity:.45;text-decoration:line-through}.error.small{font-size:13px}.readtext{font-size:22px;line-height:1.7;padding:8px 4px 4px;font-family:Georgia,Times New Roman,serif}.recording{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.dotrec{width:12px;height:12px;border-radius:50%;background:var(--bad);animation:pulse 1s infinite}@keyframes pulse{50%{opacity:.3}}.meter{display:inline-block;width:120px;height:8px;border-radius:4px;background:var(--line);overflow:hidden}.meter span{display:block;height:100%;background:var(--ok);transition:width .1s}.stars{font-size:40px;color:#f5b301;letter-spacing:4px}.readstats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:8px 0 14px}.readstats div{background:var(--chip);border-radius:12px;padding:12px;text-align:center}.readstats strong{display:block;font-size:24px}.readstats span{font-size:13px;color:var(--muted)}.tips{line-height:1.6;padding-left:20px}.frame-wait{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;color:#fff;font-size:15px}.videopick{border-bottom:1px solid var(--line);padding-bottom:10px;margin-bottom:12px}.videopick .applist .listrow span.row{flex:none;align-items:center}.staytip{display:flex;gap:14px;align-items:flex-start;margin-top:14px;padding:16px 18px;border-radius:16px;background:linear-gradient(135deg,#fff4d6,#e8f0ff);color:#1f2430;animation:pop .25s ease-out}.staytip-icon{font-size:40px;line-height:1}.staytip p{margin:4px 0 10px}.staytip .link{color:#6b7080}@keyframes pop{0%{transform:scale(.95);opacity:0}to{transform:scale(1);opacity:1}}.screen.portal{max-width:920px}.tabs{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 14px}.switchcard{display:flex;justify-content:space-between;align-items:center;gap:16px}.switchcard h3{margin-bottom:4px}.switchcard p{margin:0}.toggle{position:relative;display:inline-flex;align-items:center;gap:8px;padding:4px 12px 4px 4px;border-radius:999px;background:var(--line);color:var(--ink);font-weight:700}.toggle .knob{width:26px;height:26px;border-radius:50%;background:#fff;box-shadow:0 1px 3px #00000040;transition:transform .15s}.toggle.on{background:var(--ok);color:#fff}.toggle.small{padding:2px 10px 2px 2px;font-size:13px}.toggle.small .knob{width:20px;height:20px}.paircode{margin-top:14px;padding:18px;border-radius:16px;background:var(--chip);text-align:center}.paircode .code{font-size:40px;font-weight:800;letter-spacing:6px;margin:6px 0;font-family:ui-monospace,Menlo,monospace}.pairinput{font-size:32px!important;text-align:center;letter-spacing:6px;font-family:ui-monospace,Menlo,monospace;text-transform:uppercase;margin:10px 0 4px}.toggle.on{flex-direction:row-reverse;padding:4px 4px 4px 12px}.toggle.small.on{padding:2px 2px 2px 10px}.lockswitch{display:inline-flex;border-radius:999px;background:var(--chip);padding:3px;gap:2px;flex:none}.lockswitch .seg{border-radius:999px;padding:6px 14px;background:transparent;color:var(--muted);font-weight:600;font-size:14px}.lockswitch.small .seg{padding:4px 10px;font-size:13px}.lockswitch .seg.on.normal{background:var(--accent);color:#fff}.lockswitch .seg.on.free{background:var(--ok);color:#fff}.lockswitch .seg.on.locked{background:var(--bad);color:#fff}.card.request{border:2px solid #f5b301}.pwrow{display:flex;gap:8px;align-items:center}.pwrow input{flex:1}.meterline{font-size:13px;font-weight:600}.meterline.l0{color:var(--bad)}.meterline.l1{color:#c27c00}.meterline.l2{color:var(--accent)}.meterline.l3{color:var(--ok)}input[type=email]{font:inherit;font-weight:400;padding:10px 12px;border-radius:10px;border:1px solid var(--line);background:var(--bg);color:var(--ink);width:100%}