:root{--bg:#eceef3;--card:#fff;--ink:#1b2330;--muted:#69727f;--faint:#9aa2af;--line:#e3e7ef;--line-strong:#d3d9e4;--primary:#2f54eb;--primary-ink:#fff;--primary-soft:#eaeefe;--heart:#ec4d6b;--green:#2f9e44;--green-soft:#e8f6ec;--yellow:#f3a712;--red:#e23b3b;--host-wash:#f4f1fc;--host-line:#ddd4f5;--host-ink:#5a44b8;--radius:14px;--radius-sm:9px;--shadow:0 1px 2px #141e320d, 0 2px 8px #141e320d;--shadow-pop:0 8px 28px #141e3229;--brand-display:"Poetsen One", "Fraunces", Georgia, serif;--sans:"Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--serif:"Fraunces", Georgia, serif;--mono:"IBM Plex Mono", ui-monospace, Menlo, monospace}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;line-height:1.5}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;font-family:inherit}h1,h2,h3{font-family:var(--serif);letter-spacing:-.01em;font-weight:600}:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}.topbar{z-index:40;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);background:#ffffffeb;align-items:center;gap:16px;padding:12px 20px;display:flex;position:sticky;top:0}.brand{color:var(--ink);font-family:var(--brand-display);letter-spacing:0;align-items:center;gap:10px;font-size:20px;font-weight:400;line-height:1;display:flex}.brand:hover{text-decoration:none}.brand-logo{object-fit:contain;flex:none;width:30px;height:30px}.timetable-cover,.topic-cover{border:1px solid 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15px;font-size:14px;font-weight:600;display:inline-flex}.btn:hover{background:#f6f7fa;text-decoration:none}.btn-primary{background:var(--primary);color:var(--primary-ink);border-color:#0000}.btn-primary:hover{filter:brightness(1.05);background:var(--primary)}.btn-ghost{color:var(--muted);background:0 0;border-color:#0000}.field{margin-bottom:12px;display:block}.field label{color:var(--muted);margin-bottom:5px;font-size:13px;font-weight:600;display:block}input,textarea,select{width:100%;color:var(--ink);border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:#fff;padding:9px 11px;font-family:inherit;font-size:14px}textarea{resize:vertical;min-height:80px}.pill{border:1px solid var(--line-strong);color:var(--muted);background:#fff;border-radius:999px;align-items:center;gap:6px;padding:4px 9px;font-size:12px;font-weight:600;display:inline-flex}.pill-owner,.pill-admin{color:#b23a4c;background:#fdeef0;border-color:#f6d2d8}.pill-host{background:var(--host-wash);color:var(--host-ink);border-color:var(--host-line)}.pill-elector{background:var(--primary-soft);color:var(--primary);border-color:#0000}.muted{color:var(--muted)}.faint{color:var(--faint)}.mono{font-family:var(--mono)}.row{align-items:center;gap:10px;display:flex}.wrap{flex-wrap:wrap}.nav{flex-wrap:wrap;gap:6px;display:flex}.nav a{color:var(--muted);border-radius:10px;padding:8px 12px;font-size:14px;font-weight:600}.nav a:hover{background:#e4e7ef;text-decoration:none}.nav a.on{background:var(--primary-soft);color:var(--primary)}.stack{flex-direction:column;gap:14px;display:flex}.notice{border:1px dashed var(--line-strong);color:var(--faint);background:#fff;border-radius:10px;padding:12px 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