:root{color-scheme:light dark;--bg: #f5f6f8;--surface: #ffffff;--text: #1a1a1a;--muted: #6b7280;--border: #e2e4e8;--primary: #0b5fff;--danger: #d92d20;--success: #067647;font-family:system-ui,-apple-system,Segoe UI,sans-serif}@media (prefers-color-scheme: dark){:root{--bg: #111318;--surface: #1a1d24;--text: #f2f3f5;--muted: #9aa0aa;--border: #2a2d35}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}.app-shell{max-width:960px;margin:0 auto;padding:24px 20px 60px}.login-card{max-width:380px;margin:80px auto;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:32px}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}input{padding:10px 12px;border-radius:8px;border:1px solid var(--border);background:var(--bg);color:var(--text);font-size:14px}button{cursor:pointer;border:none;border-radius:8px;padding:10px 16px;font-size:14px;font-weight:600;background:var(--primary);color:#fff}button.secondary{background:transparent;color:var(--text);border:1px solid var(--border)}button.danger{background:var(--danger)}button:disabled{opacity:.6;cursor:not-allowed}.tabs{display:flex;gap:8px;margin-bottom:20px;border-bottom:1px solid var(--border)}.tab{padding:10px 4px;background:none;border:none;border-bottom:2px solid transparent;color:var(--muted);font-weight:600;border-radius:0}.tab.active{color:var(--primary);border-bottom-color:var(--primary)}.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:16px 20px;margin-bottom:12px;display:flex;justify-content:space-between;align-items:center;gap:16px}.card-title{font-weight:600}.card-subtitle{color:var(--muted);font-size:13px}.actions{display:flex;gap:8px}.error-banner{background:#fee4e2;color:var(--danger);padding:10px 14px;border-radius:8px;margin-bottom:16px;font-size:14px}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--border);font-size:14px}.muted{color:var(--muted);font-size:13px}header.top-bar{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}