:root{--brand: #0ea5e9;--accent: #111827;--bg: #f6f7f9;--card: #fff;--text: #111827;--muted: #5b6472;--line: #e5e7eb;--ok: #059669;--warn: #d97706;--bad: #dc2626}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.55}a{color:var(--brand);text-decoration:none}.topbar{background:var(--accent);color:#fff;padding:12px 0}.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:14px}.brandline{display:flex;align-items:center;gap:10px;font-weight:700}.nav{display:flex;gap:4px;align-items:center}.nav a{color:#e5e7eb;padding:7px 12px;border-radius:8px;font-size:.92rem}.nav a:hover,.nav a.active{background:#ffffff24;color:#fff}.container{max-width:1080px;margin:0 auto;padding:20px}h1{font-size:1.5rem;margin:18px 0 6px}h2{font-size:1.15rem;margin:0 0 10px}.sub{color:var(--muted);margin-bottom:18px}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;margin-bottom:14px}.grid{display:grid;gap:14px}.grid.c3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}table{width:100%;border-collapse:collapse;font-size:.93rem}th{text-align:left;color:var(--muted);font-weight:600;font-size:.8rem;text-transform:uppercase;letter-spacing:.04em}th,td{padding:10px;border-bottom:1px solid var(--line);vertical-align:middle}tr:last-child td{border-bottom:none}.btn{display:inline-block;background:var(--brand);color:#fff;border:none;border-radius:9px;padding:9px 16px;font-size:.92rem;font-weight:600;cursor:pointer;font-family:inherit}.btn:hover{filter:brightness(1.08)}.btn:disabled{opacity:.6;cursor:default}.btn.ghost{background:transparent;color:var(--brand);border:1.5px solid var(--brand)}.btn.small{padding:5px 10px;font-size:.82rem;border-radius:7px}.btn.danger{background:var(--bad)}.btn.ok{background:var(--ok)}input,select,textarea{width:100%;padding:10px 12px;border:1.5px solid var(--line);border-radius:9px;font-size:.95rem;font-family:inherit;background:#fff}input:focus,select:focus{outline:none;border-color:var(--brand)}label{display:block;font-weight:600;font-size:.86rem;margin:12px 0 5px}.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:.78rem;font-weight:700}.badge.ok{background:#d1fae5;color:var(--ok)}.badge.warn{background:#fef3c7;color:var(--warn)}.badge.bad{background:#fee2e2;color:var(--bad)}.badge.mut{background:#e5e7eb;color:var(--muted)}.stat{text-align:center;padding:20px 10px}.stat b{display:block;font-size:2rem;color:var(--brand)}.stat span{color:var(--muted);font-size:.85rem}.alert{background:#fee2e2;color:var(--bad);border-radius:9px;padding:10px 14px;margin:12px 0;font-size:.9rem}.notice{background:#e0f2fe;color:#075985;border-radius:9px;padding:10px 14px;margin:12px 0;font-size:.9rem}.exmeta{color:var(--muted);font-size:.86rem}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:linear-gradient(160deg,var(--accent) 0%,var(--brand) 140%)}.login-card{background:#fff;border-radius:18px;padding:36px;max-width:420px;width:100%}.login-card h1{text-align:center;font-size:1.3rem;margin-top:0}.login-card .sub{text-align:center}