:root {
  --a-primary: #3a5a40;
  --a-primary-dark: #2c4531;
  --a-bg: #f4f6f4;
  --a-card: #ffffff;
  --a-border: #dfe3de;
  --a-text: #202521;
  --a-text-soft: #5b625b;
  --a-danger: #b3261e;
  --a-radius: 12px;
}
* , *::before, *::after { box-sizing: border-box; }
body {
  margin: 0; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  background: var(--a-bg); color: var(--a-text); line-height: 1.55;
}
a { color: var(--a-primary); text-decoration: none; }
img { max-width: 100%; }

.admin-shell { display: flex; min-height: 100vh; }
.admin-sidebar {
  width: 250px; background: var(--a-primary-dark); color: #eef3ee; flex-shrink: 0;
  padding: 22px 16px; position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.admin-sidebar .brand { font-weight: 700; font-size: 1.05rem; margin-bottom: 6px; color: #fff; }
.admin-sidebar .brand small { display: block; font-weight: 400; opacity: .75; font-size: .78rem; }
.site-switch { margin: 18px 0; display: flex; flex-direction: column; gap: 6px; }
.site-switch a {
  padding: 9px 12px; border-radius: 8px; color: #d9e6da; font-size: .88rem; font-weight: 600;
}
.site-switch a.active, .site-switch a:hover { background: rgba(255,255,255,.12); color: #fff; }
.admin-nav { display: flex; flex-direction: column; gap: 2px; margin-top: 20px; }
.admin-nav a { padding: 10px 12px; border-radius: 8px; color: #d9e6da; font-size: .92rem; }
.admin-nav a.active, .admin-nav a:hover { background: #fff; color: var(--a-primary-dark); }
.admin-nav hr { border: none; border-top: 1px solid rgba(255,255,255,.18); margin: 14px 0; }

.admin-main { flex: 1; min-width: 0; }
.admin-topbar {
  display: flex; align-items: center; justify-content: space-between; padding: 16px 28px;
  background: #fff; border-bottom: 1px solid var(--a-border); position: sticky; top: 0; z-index: 5;
}
.admin-topbar h1 { font-size: 1.15rem; margin: 0; }
.admin-content { padding: 26px 28px 60px; max-width: 1100px; }

.menu-toggle { display: none; background: none; border: 1px solid var(--a-border); border-radius: 8px; padding: 8px 10px; cursor: pointer; }
@media (max-width: 880px) {
  .admin-sidebar {
    position: fixed; left: 0; top: 0; z-index: 50; transform: translateX(-100%); transition: transform .2s ease;
  }
  .admin-sidebar.open { transform: translateX(0); }
  .menu-toggle { display: inline-flex; }
}

.card { background: var(--a-card); border: 1px solid var(--a-border); border-radius: var(--a-radius); padding: 22px; margin-bottom: 22px; }
.card h2 { margin-top: 0; font-size: 1.1rem; }

.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 6px; font-size: .9rem; }
.form-group small.hint { display: block; color: var(--a-text-soft); margin-top: 4px; font-size: .8rem; }
.form-control {
  width: 100%; padding: 10px 12px; border: 1px solid var(--a-border); border-radius: 8px;
  font-family: inherit; font-size: .95rem; background: #fff; color: var(--a-text);
}
.form-control:focus { outline: none; border-color: var(--a-primary); box-shadow: 0 0 0 3px rgba(58,90,64,.15); }
textarea.form-control { resize: vertical; min-height: 120px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }

.btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 9px 18px; border-radius: 8px; border: 1px solid var(--a-primary);
  background: var(--a-primary); color: #fff; font-weight: 600; cursor: pointer; font-size: .9rem;
}
.btn:hover { background: var(--a-primary-dark); }
.btn-outline { background: #fff; color: var(--a-primary); }
.btn-outline:hover { background: var(--a-primary); color: #fff; }
.btn-danger { background: #fff; color: var(--a-danger); border-color: var(--a-danger); }
.btn-danger:hover { background: var(--a-danger); color: #fff; }
.btn-sm { padding: 6px 12px; font-size: .82rem; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--a-border); vertical-align: middle; }
th { color: var(--a-text-soft); font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; }
tr:hover td { background: #fafbf9; }
.thumb { width: 56px; height: 56px; object-fit: cover; border-radius: 8px; background: #eee; }
.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: .74rem; font-weight: 700; }
.badge.on { background: #e2f1e3; color: #256b34; }
.badge.off { background: #f1e2e2; color: #a3341c; }
.row-actions { display: flex; gap: 8px; }

.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 18px; font-weight: 600; font-size: .92rem; }
.alert.success { background: #e2f1e3; color: #256b34; }
.alert.error { background: #f8e2df; color: #a3341c; }

.login-shell { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--a-bg); padding: 20px; }
.login-card { width: 100%; max-width: 380px; background: #fff; border: 1px solid var(--a-border); border-radius: 16px; padding: 34px 30px; }
.login-card h1 { font-size: 1.3rem; text-align: center; margin-bottom: 4px; }
.login-card p.sub { text-align: center; color: var(--a-text-soft); margin-bottom: 24px; font-size: .88rem; }

.empty { text-align: center; padding: 40px 20px; color: var(--a-text-soft); }
.logo-preview {
  width: 80px; height: 80px; border-radius: 50%; object-fit: contain; border: 2px solid var(--a-border);
  margin-bottom: 10px; background: #fff; padding: 6px; box-sizing: border-box;
}