*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#f5f7fb;color:#1f2937}
.wrap{width:min(1180px,92%);margin:0 auto}
.site-header{background:#0f3d2e;color:#fff;padding:16px 0}
.brand{font-size:24px;font-weight:700}
.top-nav{display:flex;gap:16px;margin-top:8px;flex-wrap:wrap}
.top-nav a,.admin-sidebar a{color:inherit;text-decoration:none}
.card{background:#fff;border-radius:16px;padding:24px;margin:20px 0;box-shadow:0 8px 24px rgba(0,0,0,.06)}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.admin-sidebar{display:flex;gap:12px;flex-wrap:wrap;background:#fff;padding:16px;border-radius:12px;margin-top:20px}
.notice.success{padding:12px 16px;background:#e8f7ed;border-radius:10px;color:#165c2f;margin:12px 0}
button{background:#0f3d2e;color:#fff;border:0;border-radius:10px;padding:10px 16px;cursor:pointer}
input[type=file]{display:block;margin:12px 0}
.actions{display:flex;gap:12px;margin-top:16px}
@media (max-width: 768px){.grid-2{grid-template-columns:1fr}}