:root{--nav:#18212b;--accent:#2563eb;--bg:#f4f6f8;--card:#fff;--text:#1f2937;--muted:#6b7280}
*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif;background:var(--bg);color:var(--text)}
nav{background:var(--nav);color:#fff;padding:13px 18px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
nav a{color:#fff;text-decoration:none;font-size:.92rem}nav .brand{font-weight:700;margin-right:auto}
main{max-width:1250px;margin:28px auto;padding:0 18px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.card{background:var(--card);padding:20px;border-radius:10px;box-shadow:0 2px 12px #0000000d}
table{width:100%;border-collapse:collapse;background:#fff}th,td{padding:9px;border-bottom:1px solid #e5e7eb;text-align:left;vertical-align:top}
input,select,textarea{width:100%;padding:9px;border:1px solid #d1d5db;border-radius:6px;background:#fff}
button,.btn{background:var(--accent);color:#fff;border:0;border-radius:6px;padding:9px 14px;text-decoration:none;cursor:pointer}
.btn.secondary{background:#475569}.actions{display:flex;gap:8px;flex-wrap:wrap}.muted{color:var(--muted)}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.full{grid-column:1/-1}
@media(max-width:700px){.form-grid{grid-template-columns:1fr}.full{grid-column:auto}table{font-size:.86rem}}