:root {
  --green: #00A651;
  --green-dark: #008C44;
  --navy: #1A1A2E;
  --muted: #6B7280;
  --border: #E5E7EB;
  --bg: #F3F4F6;
  --white: #fff;
  --card: #fff;
  --text: #1A1A2E;
  --shadow: 0 4px 20px rgba(0,0,0,.06);
  --shadow-lg: 0 20px 50px rgba(0,0,0,.15);
}
body.admin-dark {
  --bg: #0f1117;
  --card: #1a1d27;
  --text: #f3f4f6;
  --muted: #9CA3AF;
  --border: #2d3340;
  --navy: #f3f4f6;
  --white: #1a1d27;
  --shadow: 0 4px 20px rgba(0,0,0,.3);
}
.hidden { display: none !important; }
* { box-sizing: border-box; margin: 0; padding: 0; }
body.admin-body {
  font-family: Inter, system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 10px 16px; border-radius: 10px; font: inherit; font-weight: 600;
  font-size: .875rem; border: none; cursor: pointer; text-decoration: none;
  transition: .15s;
}
.btn-primary { background: var(--green); color: #fff; }
.btn-primary:hover { background: var(--green-dark); }
.btn-ghost {
  background: transparent; color: var(--text);
  border: 1.5px solid var(--border);
}
.btn-ghost:hover { background: var(--bg); }
.btn-danger { background: #FEE2E2; color: #B91C1C; border: none; }
.btn-sm { padding: 7px 12px; font-size: .8rem; border-radius: 8px; }

.login-screen {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 24px; background: linear-gradient(160deg, #1A1A2E, #0a1a12);
}
.login-card {
  background: #fff; border-radius: 16px; padding: 32px 28px;
  width: 100%; max-width: 400px; box-shadow: var(--shadow-lg); color: #1A1A2E;
}
.login-mark {
  width: 48px; height: 48px; border-radius: 50%; border: 2px solid var(--green);
  color: var(--green); display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.25rem; margin: 0 auto 12px;
}
.login-card h1 { text-align: center; font-size: 1.25rem; margin-bottom: 4px; }
.login-sub { text-align: center; color: #6B7280; font-size: .9rem; margin-bottom: 20px; }
.login-err { color: #B91C1C; font-size: .85rem; min-height: 1.2em; margin-bottom: 8px; }
.login-card label { display: block; font-size: .8rem; font-weight: 600; margin-bottom: 5px; }
.login-card input {
  width: 100%; padding: 11px 12px; border: 1.5px solid #E5E7EB;
  border-radius: 9px; font: inherit; margin-bottom: 14px;
}

.admin-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  position: sticky;
  top: 0;
  z-index: 20;
}
.admin-brand { display: flex; align-items: center; gap: 12px; }
.admin-brand img {
  width: 40px; height: 40px; object-fit: contain; border-radius: 8px; display: none;
}
.admin-brand img.has-logo { display: block; }
.admin-brand strong { display: block; font-size: 1rem; color: var(--text); }
.admin-brand span { font-size: .75rem; color: var(--muted); }
.admin-header-actions {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
}

.admin-stats {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
  padding: 20px;
  max-width: 1200px;
  margin: 0 auto;
}
.admin-stats .stat {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 18px;
  box-shadow: var(--shadow);
}
.admin-stats .stat strong {
  display: block; font-size: 1.5rem; font-weight: 800; color: var(--green); line-height: 1.2;
}
.admin-stats .stat span { font-size: .8rem; color: var(--muted); }

.admin-tabs {
  display: flex; gap: 6px; padding: 0 20px 12px;
  max-width: 1200px; margin: 0 auto;
  overflow-x: auto; -webkit-overflow-scrolling: touch;
}
.tab {
  flex-shrink: 0; padding: 10px 16px; border-radius: 999px;
  border: 1.5px solid var(--border); background: var(--card);
  color: var(--muted); font: inherit; font-weight: 600; font-size: .85rem; cursor: pointer;
}
.tab.active { background: var(--green); border-color: var(--green); color: #fff; }

.admin-main {
  max-width: 1200px; margin: 0 auto; padding: 8px 20px 48px;
}
.tab-panel {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 14px; padding: 20px; box-shadow: var(--shadow);
}
.panel-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-wrap: wrap; margin-bottom: 16px;
}
.panel-head h2 { font-size: 1.15rem; color: var(--text); }
.panel-head > div { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td {
  padding: 12px 10px; text-align: left;
  border-bottom: 1px solid var(--border); vertical-align: middle;
}
th {
  font-size: .72rem; text-transform: uppercase; letter-spacing: .04em;
  color: var(--muted); font-weight: 600;
}
.actions-cell { white-space: nowrap; display: flex; gap: 6px; }
.thumb {
  width: 42px; height: 42px; object-fit: cover; border-radius: 8px;
  background: var(--bg); display: block;
}
.badge {
  display: inline-block; padding: 3px 9px; border-radius: 999px;
  background: rgba(0,166,81,.12); color: var(--green);
  font-size: .72rem; font-weight: 700;
}
.badge-off {
  background: #FEF3C7; color: #B45309;
  display: inline-block; padding: 3px 9px; border-radius: 999px;
  font-size: .72rem; font-weight: 700;
}

.settings-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 14px;
}
.settings-grid label {
  display: flex; flex-direction: column; gap: 6px;
  font-size: .8rem; font-weight: 600; color: var(--text);
}
.settings-grid input,
.settings-grid textarea {
  padding: 11px 12px; border: 1.5px solid var(--border);
  border-radius: 9px; font: inherit; background: var(--bg); color: var(--text);
}

.modal-bg {
  position: fixed; inset: 0; background: rgba(15,15,26,.55);
  backdrop-filter: blur(4px); display: flex; align-items: center;
  justify-content: center; padding: 16px; z-index: 50;
}
.modal {
  background: var(--card); color: var(--text); border-radius: 16px;
  padding: 28px; width: 100%; max-width: 520px; max-height: 92vh;
  overflow: auto; box-shadow: var(--shadow-lg);
}
.modal h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 20px; }
.modal label {
  display: block; font-size: .8rem; font-weight: 600;
  margin-bottom: 5px; color: var(--text);
}
.modal input, .modal select, .modal textarea {
  width: 100%; padding: 11px 12px; border: 1.5px solid var(--border);
  border-radius: 9px; font: inherit; font-size: .9rem; margin-bottom: 14px;
  background: var(--bg); color: var(--text);
}
.modal-actions {
  display: flex; gap: 10px; justify-content: flex-end; margin-top: 8px;
}
.preview {
  max-width: 100%; max-height: 150px; border-radius: 10px;
  margin: 4px 0 12px; display: none; object-fit: cover;
}
.preview.show { display: block; }

@media (max-width: 900px) {
  .admin-stats { grid-template-columns: repeat(3, 1fr); }
  .settings-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .admin-header { padding: 12px 14px; }
  .admin-stats {
    grid-template-columns: repeat(2, 1fr);
    padding: 14px; gap: 10px;
  }
  .admin-stats .stat { padding: 12px 14px; }
  .admin-stats .stat strong { font-size: 1.25rem; }
  .admin-tabs { padding: 0 14px 10px; }
  .admin-main { padding: 4px 14px 40px; }
  .tab-panel { padding: 14px; }
  .panel-head { flex-direction: column; align-items: flex-start; }
}