:root{--bg: #f6f5f3;--surface: #ffffff;--text: #1c1c1e;--text-muted: #6b6b70;--border: #d9d7d2;--accent: #4f46e5;--accent-hover: #4338ca;--danger: #b91c1c;--danger-bg: #fef2f2;--danger-border: #fecaca;--warning: #92400e;--warning-bg: #fffbeb;--warning-border: #fde68a;--ok: #166534;--ok-bg: #f0fdf4;--ok-border: #bbf7d0;--radius: 8px;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);line-height:1.55;-webkit-font-smoothing:antialiased}h1,h2,h3{line-height:1.25;margin:0 0 .5rem}p{margin:.35rem 0}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}code,pre{font-family:ui-monospace,SF Mono,SFMono-Regular,Menlo,Consolas,monospace}.container{max-width:46rem;margin:0 auto;padding:2rem 1.25rem 4rem}.card{background:var(--surface);border:1px solid 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transparent;white-space:nowrap}.badge.ok{color:var(--ok);background:var(--ok-bg);border-color:var(--ok-border)}.badge.broken{color:var(--danger);background:var(--danger-bg);border-color:var(--danger-border)}.badge.off{color:var(--text-muted);background:#f0efec;border-color:var(--border)}.error-list,.warning-list{border-radius:var(--radius);padding:.75rem .75rem .75rem 2rem;margin:.75rem 0;font-size:.9rem}.error-list{color:var(--danger);background:var(--danger-bg);border:1px solid var(--danger-border)}.warning-list{color:var(--warning);background:var(--warning-bg);border:1px solid var(--warning-border)}.form-error{color:var(--danger);font-weight:600}.muted{color:var(--text-muted);font-size:.9rem}.page-head{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin-bottom:1rem}.admin-shell{display:grid;grid-template-columns:13rem 1fr;min-height:100vh}.admin-sidebar{background:#211f26;color:#d6d3cd;padding:1.25rem 1rem;display:flex;flex-direction:column;gap:1.5rem}.admin-brand{font-weight:800;font-size:1.2rem;color:#fff;margin:0}.admin-sidebar nav{display:flex;flex-direction:column;gap:.25rem}.admin-sidebar nav a{color:#d6d3cd;padding:.45rem .6rem;border-radius:var(--radius);font-weight:600}.admin-sidebar nav a:hover{background:#322f3a;color:#fff;text-decoration:none}.admin-sidebar nav a.active{background:var(--accent);color:#fff}.admin-logout{margin-top:auto;display:flex;flex-direction:column;gap:.5rem;font-size:.85rem;color:#a8a49e}.admin-logout button{background:transparent;border-color:#4a4754;color:#d6d3cd}.admin-logout button:hover{background:#322f3a}.admin-main{padding:2rem;max-width:72rem;width:100%}@media(max-width:48rem){.admin-shell{grid-template-columns:1fr}.admin-sidebar{flex-direction:row;align-items:center;flex-wrap:wrap;gap:.75rem}.admin-sidebar nav{flex-direction:row}.admin-logout{margin-top:0;margin-left:auto}.admin-main{padding:1.25rem}}.login-main{min-height:100vh;display:grid;place-items:center;padding:1rem}.login-card{width:100%;max-width:22rem}.login-card h1{text-align:center}.login-card button[type=submit]{width:100%;margin-top:1rem;background:var(--accent);border-color:var(--accent);color:#fff}.login-card button[type=submit]:hover{background:var(--accent-hover)}.quiz-list{list-style:none;padding:0;display:grid;gap:.75rem}.quiz-list li{display:flex;align-items:baseline;gap:.75rem;flex-wrap:wrap}.quiz-list a{font-size:1.1rem;font-weight:700}.category{font-size:.8rem;background:#eceaf5;color:var(--accent);padding:.1rem .5rem;border-radius:999px}.count{color:var(--text-muted);font-size:.85rem}