:root{--bg:#f4f6fb;--card:#fff;--text:#172033;--muted:#6b7280;--line:#e5e7eb;--primary:#2563eb;--sidebar:#0f172a;--sideText:#e5e7eb}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,Arial,sans-serif}.layout{display:flex;min-height:100vh}.sidebar{width:250px;background:var(--sidebar);color:var(--sideText);padding:22px;position:sticky;top:0;height:100vh}.brand{font-size:22px;margin-bottom:24px}.sidebar a{display:block;color:var(--sideText);text-decoration:none;padding:11px 12px;border-radius:12px;margin:4px 0}.sidebar a:hover{background:rgba(255,255,255,.1)}.content{flex:1;padding:24px}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.card{border:1px solid var(--line);border-radius:18px;box-shadow:0 8px 28px rgba(15,23,42,.06);background:var(--card)}.stat{padding:20px}.stat small{color:var(--muted)}.stat b{font-size:30px}.table{vertical-align:middle}.badge-ok{background:#dcfce7;color:#166534}.badge-fail{background:#fee2e2;color:#991b1b}.login-bg{min-height:100vh;display:grid;place-items:center;background:linear-gradient(145deg,#0f172a,#1e3a8a)}.login-card{width:min(420px,92vw);background:white;padding:32px;border-radius:24px;box-shadow:0 30px 80px rgba(0,0,0,.35)}.login-card h1{font-size:28px}.login-card p{color:#6b7280}.dark{--bg:#0b1020;--card:#111827;--text:#e5e7eb;--muted:#9ca3af;--line:#243044}.dark .form-control,.dark .form-select,.dark textarea{background:#0b1220;color:#e5e7eb;border-color:#334155}.dark .table{--bs-table-bg:transparent;--bs-table-color:#e5e7eb;--bs-table-striped-color:#e5e7eb;--bs-table-striped-bg:#0f172a}.dark .card{color:#e5e7eb}@media(max-width:850px){.layout{display:block}.sidebar{width:auto;height:auto;position:relative}.content{padding:14px}}