:root{--bg:#f5f7fb;--card:#fff;--text:#172033;--muted:#697386;--brand:#0f3d5e;--border:#dfe4ea;--ok:#0f766e;--warn:#b45309;--bad:#b91c1c}*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--brand);text-decoration:none}.topbar{background:#fff;border-bottom:1px solid var(--border);padding:14px 22px;display:flex;justify-content:space-between;gap:20px;align-items:center;position:sticky;top:0;z-index:2}.topbar strong{display:block;color:var(--brand)}.topbar span{font-size:13px;color:var(--muted)}nav{display:flex;flex-wrap:wrap;gap:12px}nav a{font-size:14px}.container{max-width:1180px;margin:24px auto;padding:0 18px}.footer{text-align:center;color:var(--muted);font-size:12px;padding:30px}.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:20px;margin-bottom:18px;box-shadow:0 6px 24px rgba(23,32,51,.04)}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}.stat{font-size:30px;font-weight:700}.muted{color:var(--muted)}.btn,button,input[type=submit]{display:inline-block;border:0;border-radius:10px;background:var(--brand);color:#fff;padding:10px 14px;cursor:pointer;font-weight:600}.btn.secondary{background:#e7ecf2;color:var(--text)}.btn.danger{background:var(--bad)}.btn.small{padding:6px 10px;font-size:12px}table{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden}th,td{padding:10px;border-bottom:1px solid var(--border);text-align:left;vertical-align:top}th{font-size:13px;background:#f1f4f8}.form-row{margin-bottom:12px}label{display:block;font-size:13px;font-weight:600;margin-bottom:5px}input,select,textarea{width:100%;padding:10px;border:1px solid var(--border);border-radius:10px;background:#fff}textarea{min-height:90px}.alert{border-radius:12px;padding:12px 14px;margin-bottom:16px}.alert.success{background:#ecfdf5;color:#065f46}.alert.error{background:#fef2f2;color:#991b1b}.alert.warning{background:#fffbeb;color:#92400e}.badge{display:inline-block;border-radius:999px;padding:4px 8px;font-size:12px;background:#e7ecf2}.badge.ok{background:#ccfbf1;color:#115e59}.badge.bad{background:#fee2e2;color:#991b1b}.actions{display:flex;gap:8px;flex-wrap:wrap}.two{display:grid;grid-template-columns:1fr 1fr;gap:16px}@media(max-width:700px){.two{grid-template-columns:1fr}.topbar{display:block}nav{margin-top:12px}}


/* Admin submenu */
.nav-admin{position:relative;display:inline-block;font-size:14px;color:var(--brand);cursor:pointer}
.nav-admin-title{display:inline-block;color:var(--brand);font-size:14px}
.nav-admin-title:after{content:' ▾';font-size:11px;color:var(--muted)}
.nav-admin-items{display:none;position:absolute;right:0;top:22px;min-width:180px;background:#fff;border:1px solid var(--border);border-radius:12px;box-shadow:0 10px 28px rgba(23,32,51,.12);padding:8px;z-index:20}
.nav-admin:hover .nav-admin-items,.nav-admin:focus-within .nav-admin-items{display:block}
.nav-admin-items a{display:block;padding:8px 10px;border-radius:8px;white-space:nowrap}
.nav-admin-items a:hover{background:#f1f4f8}
@media(max-width:700px){.nav-admin-items{position:static;display:block;border:0;box-shadow:none;padding:4px 0}.nav-admin-title{font-weight:600}}