:root{
  --bg:#f7fafc;--bg2:#ffffff;--card:#ffffff;--accent:#f0b90b;--text:#111827;--muted:#6b7280;--border:#e5e7eb
}
*{box-sizing:border-box}html,body{margin:0;padding:0}
body{background:var(--bg);color:var(--text);font-family:Inter,system-ui,Segoe UI,Roboto,Arial}
a{color:inherit}
.nav{display:flex;gap:10px;align-items:center;background:var(--bg2);border-bottom:1px solid var(--border);padding:12px;position:sticky;top:0;z-index:10}
.nav a{color:var(--text);text-decoration:none;background:#fff;border:1px solid var(--border);padding:8px 12px;border-radius:12px}
.nav a.sel{border-color:var(--accent);color:#111}
.brand{font-weight:900;letter-spacing:.3px;color:#111}
.container{max-width:1100px;margin:24px auto;padding:0 16px}
.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:16px;box-shadow:0 4px 10px rgba(0,0,0,.04)}
.btn{background:var(--accent);color:#111;border:0;padding:10px 16px;border-radius:12px;font-weight:700;cursor:pointer}
.btn.ghost{background:#fff;color:#111;border:1px solid var(--border)}
.input,select,input,textarea{width:100%;padding:10px;border:1px solid var(--border);border-radius:10px;background:#fff;color:#111}
.grid{display:grid;gap:16px}.grid-3{grid-template-columns:repeat(3,1fr)}
.table{width:100%;border-collapse:collapse}.table th,.table td{padding:10px;border-bottom:1px solid var(--border)}
.small{color:var(--muted);font-size:12px}
.success{background:#ecfdf5;border:1px solid #a7f3d0;color:#065f46;padding:10px;border-radius:10px}
.alert{background:#fef2f2;border:1px solid #fecaca;color:#991b1b;padding:10px;border-radius:10px}
.mono{font-family:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace}