:root{ --brand:#0ea5e9; --accent:#22c55e; --ink:#0f172a; --muted:#475569; --bg:#f8fafc; --card:#ffffff; }
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,'Noto Sans',sans-serif;line-height:1.4}
a{color:var(--brand);text-decoration:none}
.container{max-width:1100px;margin:20px auto;padding:0 16px}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:10px 16px;background:#fff;border-bottom:1px solid #e2e8f0;position:sticky;top:0;z-index:5}
.brand{font-weight:700;color:var(--ink)}
.brand small{display:block;color:var(--muted);font-weight:500}
.topbar nav a{margin:0 8px}
.topbar .btn{padding:6px 10px;border:1px solid #e2e8f0;border-radius:8px;background:#fff}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.card{background:var(--card);border:1px solid #e2e8f0;border-radius:14px;padding:16px;box-shadow:0 2px 8px rgba(2,8,20,.05)}
.card h3{margin:0 0 8px}
.btn-primary{background:var(--brand);color:#fff;border:none;border-radius:10px;padding:10px 14px;cursor:pointer}
.btn-secondary{background:var(--accent);color:#fff;border:none;border-radius:10px;padding:10px 14px;cursor:pointer}
.table{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden}
.table th,.table td{padding:10px;border-bottom:1px solid #e2e8f0;text-align:left}
.table th{background:#f1f5f9}
.input, select, textarea{width:100%;padding:10px;border:1px solid #e2e8f0;border-radius:8px;background:#fff}
.row{display:flex;gap:12px;flex-wrap:wrap}
.col{flex:1 1 240px}
.form{background:#fff;border:1px solid #e2e8f0;border-radius:14px;padding:16px}
.footer{padding:24px;text-align:center;color:var(--muted)}
.badge{display:inline-block;padding:4px 8px;border-radius:999px;background:#e2f2ff;color:#0369a1;font-size:12px}
.alert{padding:10px 14px;border-radius:10px;margin:10px 0}
.alert-ok{background:#ecfdf5;color:#065f46}
.alert-err{background:#fef2f2;color:#991b1b}
small.mono{font-family:ui-monospace,Menlo,Monaco,monospace;color:#334155}