:root{--bg:#f6f7fb;--fg:#111;--muted:#6b7280;--card:#fff;--line:#e5e7eb;--pri:#111827;}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--fg);}
.container{max-width:1100px;margin:0 auto;padding:16px;}
.topbar{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);}
.topbar .row{display:flex;align-items:center;gap:10px;justify-content:space-between;padding:10px 0;}
.badge{font-size:12px;padding:3px 8px;border-radius:999px;background:#111827;color:#fff;}
.nav{display:flex;flex-wrap:wrap;gap:10px;align-items:center;padding:8px 0 12px;}
.nav a{color:#111;text-decoration:none;padding:6px 10px;border-radius:8px;border:1px solid transparent}
.nav a.active{border-color:var(--line);background:#f3f4f6}
.muted{color:var(--muted);font-size:13px;}
.flash{margin:10px 0;padding:10px 12px;border-radius:10px;border:1px solid var(--line);background:#fff}
.flash.ok{border-color:#bbf7d0;background:#f0fdf4}
.flash.err{border-color:#fecaca;background:#fef2f2}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px;margin:12px 0;}
.table{width:100%;border-collapse:collapse}
.table th,.table td{padding:10px;border-bottom:1px solid var(--line);text-align:left;font-size:14px;}
.btn{display:inline-block;padding:9px 12px;border-radius:10px;border:1px solid var(--line);background:#fff;color:#111;text-decoration:none;cursor:pointer}
.btn.primary{background:#111827;color:#fff;border-color:#111827}
.btn.danger{background:#b91c1c;color:#fff;border-color:#b91c1c}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:900px){.grid{grid-template-columns:1fr}}
input,select,textarea{width:100%;padding:10px;border-radius:10px;border:1px solid var(--line);background:#fff}
.small{font-size:12px;color:var(--muted)}