:root{--bg:#f6f7fb;--panel:#fff;--text:#172033;--muted:#667085;--line:#e4e7ec;--accent:#315efb;--danger:#c62828;--ok:#137333}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.shell{min-height:100vh;display:grid;grid-template-columns:250px 1fr}.side{background:#111827;color:#fff;padding:24px 16px}.brand{font-size:20px;font-weight:750;margin:0 10px 28px}.nav{display:grid;grid-gap:6px;gap:6px}.nav a,.nav-button{color:#cbd5e1;text-decoration:none;padding:11px 12px;border-radius:8px;background:transparent;border:0;text-align:left;font:inherit;width:100%;cursor:pointer}.nav a.active,.nav a:hover,.nav-button:hover{background:#1f2937;color:#fff}.main{padding:30px;max-width:1500px;width:100%}.top{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:24px}.title{margin:0;font-size:28px}.muted{color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:14px;gap:14px}.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px}.metric{font-size:28px;font-weight:750;margin-top:8px}.section{margin-top:20px}.section h2{font-size:18px;margin:0 0 12px}.table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}.table td,.table th{text-align:left;padding:13px;border-bottom:1px solid var(--line);font-size:14px}.table th{background:#f9fafb;color:#475467}.badge{display:inline-flex;padding:4px 8px;border-radius:999px;font-size:12px;font-weight:650;background:#eef2ff;color:#3046a3}.badge.ok{background:#ecfdf3;color:var(--ok)}.badge.off{background:#fef2f2;color:var(--danger)}.button{border:0;border-radius:8px;padding:10px 14px;background:var(--accent);color:#fff;font-weight:650;cursor:pointer}.button.secondary{background:#fff;color:var(--text);border:1px solid var(--line)}.button.danger{background:var(--danger)}.actions{display:flex;gap:8px;flex-wrap:wrap}.form{display:grid;grid-gap:12px;gap:12px;max-width:720px}.form label{display:grid;grid-gap:6px;gap:6px;font-size:13px;font-weight:650}.input{border:1px solid #d0d5dd;border-radius:8px;padding:10px 12px;font:inherit}.notice{padding:12px 14px;border:1px solid var(--line);border-radius:9px;background:#f9fafb}.dangerBox{border-color:#f2b8b5;background:#fff7f7}.danger-text{color:var(--danger)}.okBox{border-color:#b7dfc3;background:#f5fff7}.login-shell{min-height:100vh;display:grid;place-items:center;padding:24px}.login-card{width:min(430px,100%);background:#fff;border:1px solid var(--line);border-radius:16px;padding:30px;box-shadow:0 10px 35px rgba(16,24,40,.08)}.login-card h1{margin:0 0 8px}.login-card .brand{margin:0 0 24px;color:var(--text)}@media(max-width:900px){.shell{grid-template-columns:1fr}.side{position:static}.grid{grid-template-columns:repeat(2,1fr)}.main{padding:18px}}@media(max-width:560px){.grid{grid-template-columns:1fr}.top{align-items:flex-start;flex-direction:column}}