:root{--bg:#f6f7f9;--surface:#fff;--text:#1b1f24;--muted:#5d6673;--border:#dde1e6;--accent:#2f6fde;--accent-text:#fff;--accent-hover:#2459b8;--error:#c62828;--success:#2e7d32;--success-soft:#e5f3e7;--warn:#8a5300;--warn-soft:#fbefd9;--error-soft:#fbe3e3;--plan-soft:#e6eefc;--radius:12px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}@media (prefers-color-scheme:dark){:root{--bg:#111418;--surface:#1a1e24;--text:#e8eaed;--muted:#9aa3ad;--border:#2c323a;--accent:#5b8ff0;--accent-text:#0b1220;--accent-hover:#7aa4f3;--error:#ef6b6b;--success:#6fcf73;--success-soft:#17301b;--warn:#f0b45c;--warn-soft:#3a2a12;--error-soft:#3d1c1c;--plan-soft:#1d2a47;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}*,:before,:after{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}h1{margin:0;font-size:1.6rem}h2{margin:0;font-size:1.15rem}p{margin:0}a{color:var(--accent)}code{background:var(--bg);border-radius:6px;padding:.1em .35em;font-family:ui-monospace,Menlo,Consolas,monospace}.header{border-bottom:1px solid var(--border);background:var(--surface);align-items:center;gap:24px;padding:12px 16px;display:flex}.brand{color:var(--text);font-size:1.1rem;font-weight:700;text-decoration:none}.main{max-width:720px;margin:0 auto;padding:24px 16px 48px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.stack{flex-direction:column;gap:12px;display:flex}.stack-lg{flex-direction:column;gap:20px;display:flex}.row{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;display:flex}label{flex-direction:column;gap:6px;font-size:.95rem;font-weight:600;display:flex}label.inline{flex:140px}input,select,textarea{width:100%;font:inherit;border:1px solid var(--border);background:var(--bg);color:var(--text);border-radius:10px;padding:12px 14px}textarea{resize:vertical}input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:1px}.code-input{letter-spacing:.4em;text-align:center;font-variant-numeric:tabular-nums;font-size:1.5rem}button,.button{font:inherit;text-align:center;background:var(--accent);color:var(--accent-text);cursor:pointer;border:1px solid #0000;border-radius:10px;padding:12px 16px;font-weight:600;text-decoration:none;display:inline-block}button:hover:not(:disabled),.button:hover{background:var(--accent-hover)}button:disabled{opacity:.55;cursor:default}button.secondary{color:var(--text);border-color:var(--border);background:0 0}button.secondary:hover:not(:disabled){background:var(--bg)}button.link{color:var(--accent);background:0 0;padding:4px 0;font-weight:500}button.link:hover:not(:disabled){background:0 0;text-decoration:underline}.muted{color:var(--muted);font-size:.95rem}.error{color:var(--error)}.success{color:var(--success)}.props{grid-template-columns:auto 1fr;gap:6px 16px;margin:0;display:grid}.props dt{color:var(--muted)}.props dd{margin:0}button.danger,button.link.danger{color:var(--error)}.nav{gap:4px;display:flex}.nav a{color:var(--muted);border-radius:8px;padding:8px 12px;font-weight:600;text-decoration:none}.nav a:hover{color:var(--text)}.nav a.active{color:var(--accent);background:var(--plan-soft)}@media (width<=640px){.nav{z-index:10;padding:6px 8px calc(6px + env(safe-area-inset-bottom));background:var(--surface);border-top:1px solid var(--border);justify-content:space-around;position:fixed;inset:auto 0 0}.nav a{text-align:center;flex:1;padding:8px 4px;font-size:.85rem}.main.with-nav{padding-bottom:96px}}.back{font-weight:600;text-decoration:none}.capitalize:first-letter{text-transform:uppercase}.pre{white-space:pre-wrap}.fields{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;display:grid}.sub{background:var(--bg);border-radius:10px;padding:16px}.badge{white-space:nowrap;color:var(--muted);background:var(--bg);border-radius:999px;padding:2px 8px;font-size:.8rem;font-weight:600;display:inline-block}.badge.ok{color:var(--success);background:var(--success-soft)}.badge.warn{color:var(--warn);background:var(--warn-soft)}.badge.bad{color:var(--error);background:var(--error-soft)}.badge.plan{color:var(--accent);background:var(--plan-soft)}.tag{color:var(--accent);margin-left:8px;font-size:.8rem;font-weight:600}.week-nav{align-items:center;gap:8px;display:flex}.week-nav button.secondary{padding:6px 14px}.week-label{text-align:center;min-width:11em;font-weight:600}.day{padding:14px 16px}.day h2{margin-bottom:6px;font-size:1rem}.day.today{border-color:var(--accent)}.lessons{margin:0;padding:0;list-style:none}.lesson{border-top:1px solid var(--border);padding:8px 0}.lesson:first-child{border-top:0}.lesson-main{flex-wrap:wrap;align-items:center;gap:4px 12px;display:flex}.lesson-time{font-variant-numeric:tabular-nums;min-width:6.5em;font-weight:600}.lesson-name{color:var(--text);flex:8em;font-weight:500;text-decoration:none}.lesson-name:hover{text-decoration:underline}.lesson.cancelled .lesson-time,.lesson.cancelled .lesson-name{color:var(--muted);text-decoration:line-through}.lesson-actions{flex-wrap:wrap;align-items:flex-end;gap:8px;margin-top:10px;display:flex}.lesson-actions button{padding:8px 12px}.lesson-actions .error{flex-basis:100%}.list{margin:0;padding:0;list-style:none}.list.card{padding:4px 0}.list>li+li{border-top:1px solid var(--border)}.list-item{color:var(--text);flex-wrap:wrap;align-items:center;gap:4px 12px;padding:12px 20px;text-decoration:none;display:flex}.list-item:hover{background:var(--bg)}.list-title{flex:8em;font-weight:600}.list-row{flex-wrap:wrap;align-items:center;gap:4px 16px;padding:10px 0;display:flex}.list-row>span:first-child{flex:8em}