/**
 * Unified admin & superadmin theme — light, responsive, touch-friendly.
 * Use for /admin and /superadmin.
 */
* { box-sizing: border-box; }

:root {
  --bg: #f1f5f9;
  --card: #fff;
  --text: #1e293b;
  --text-muted: #64748b;
  --muted: #64748b; /* alias for JS compatibility */
  --accent: #0b74d1;
  --accent-hover: #0960b0;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --success: #15803d;
  --success-bg: #f0fdf4;
  --error: #b91c1c;
  --error-bg: #fef2f2;
  --warning: #b45309;
  --warning-bg: #fef3c7;
  --radius: 8px;
  --radius-sm: 6px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08);
  --header-height: 56px;
}

@media (max-width: 768px) {
  :root {
    --container-padding: 16px;
  }
}

@media (min-width: 769px) {
  :root {
    --container-padding: 24px;
  }
}

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
}

/* Layout */
.app-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 12px var(--container-padding, 24px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  position: sticky;
  top: 0;
  z-index: 50;
}
.app-header h1 { margin: 0; font-size: clamp(1.1rem, 4vw, 1.5rem); color: #0f172a; }
.app-header .sub { margin: 2px 0 0 0; font-size: 0.875rem; color: var(--text-muted); }
.app-header-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.app-header-actions a { color: var(--accent); font-weight: 600; text-decoration: none; }
.app-header-actions a:hover { text-decoration: underline; }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 20px max(var(--container-padding, 24px), 16px);
}

/* Tabs — same for admin & superadmin */
.tabs {
  display: flex;
  gap: 2px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border-strong);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }
.tabs button {
  padding: 10px 14px;
  border: none;
  background: none;
  cursor: pointer;
  font-size: clamp(0.85rem, 2.5vw, 0.95rem);
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  white-space: nowrap;
  min-height: 44px;
}
.tabs button:hover { color: #0f172a; }
.tabs button.active { color: var(--accent); font-weight: 600; border-bottom-color: var(--accent); }

/* Panels / tab content */
.tab-panel, .panel { display: none; background: var(--card); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); }
.tab-panel.active, .panel.active { display: block; }
.panel-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; flex-wrap: wrap; gap: 12px; }
.panel-header h2 { margin: 0; font-size: 1.1rem; color: #334155; }

/* Tables — scroll on small screens */
.table-wrap { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; margin-bottom: 16px; }
table { width: 100%; border-collapse: collapse; font-size: clamp(0.8rem, 2vw, 0.9rem); min-width: 500px; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); }
th { background: #f8fafc; font-weight: 600; color: #475569; }
tr:hover { background: #f8fafc; }
.mono { font-family: ui-monospace, monospace; font-size: 0.85rem; }

/* Forms */
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(200px, 100%), 1fr)); gap: 12px; margin-bottom: 16px; }
.form-group { display: flex; flex-direction: column; gap: 4px; }
.form-group label { font-size: 0.85rem; font-weight: 600; color: #475569; }
.form-group input, .form-group select, .form-group textarea {
  padding: 10px 12px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  min-height: 44px;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.form-hint { margin-top: 4px; font-size: 0.8rem; color: var(--text-muted); }
.form-group textarea { min-height: 80px; font-family: inherit; }
.filters { display: flex; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; align-items: flex-end; }
.filters .form-group { min-width: 140px; }

/* Buttons — touch-friendly */
.btn {
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  min-height: 44px;
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--border); color: #334155; }
.btn-secondary:hover { background: var(--border-strong); }
.btn-danger { background: #dc2626; color: #fff; padding: 6px 12px; font-size: 0.8rem; min-height: 36px; }
.btn-danger:hover { background: #b91c1c; }
.actions { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }

/* Messages */
.msg { padding: 12px 14px; border-radius: var(--radius-sm); margin-bottom: 12px; font-size: 0.9rem; }
.msg.error { background: var(--error-bg); color: var(--error); border: 1px solid #fecaca; }
.msg.success { background: var(--success-bg); color: var(--success); border: 1px solid #bbf7d0; }

/* Badges */
.badge { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 0.75rem; font-weight: 600; }
.badge-available, .badge-success { background: #dcfce7; color: #166534; }
.badge-allocated { background: #dbeafe; color: #1d4ed8; }
.badge-inactive, .badge-created { background: #f1f5f9; color: var(--text-muted); }
.badge-pending { background: #fef3c7; color: var(--warning); }
.badge-failed { background: #fee2e2; color: var(--error); }

/* Stats grid (superadmin overview) */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(160px, 100%), 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 16px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.stat-card .label { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); margin-bottom: 4px; }
.stat-card .value { font-size: 1.5rem; font-weight: 700; color: var(--text); }
.stat-card .value.accent { color: var(--accent); }
.stat-card .value.success { color: var(--success); }
.stat-card .sub { font-size: 0.8rem; color: var(--text-muted); margin-top: 4px; }

/* Modals */
.modal-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 100; align-items: center; justify-content: center; padding: 16px; }
.modal-overlay.show { display: flex; }
.modal { background: var(--card); border-radius: var(--radius); padding: 24px; border: 1px solid var(--border); min-width: 280px; max-width: min(420px, 95vw); box-shadow: 0 4px 20px rgba(0,0,0,0.15); }
.modal h3 { margin: 0 0 16px 0; font-size: 1rem; color: var(--text); }
.modal .actions { margin-top: 16px; }

/* Utility */
.empty { color: var(--text-muted); text-align: center; padding: 24px; font-size: 0.9rem; }
.test-connection-result { margin-top: 8px; font-size: 0.85rem; padding: 8px 10px; border-radius: var(--radius-sm); display: none; }
.test-connection-result.success { background: var(--success-bg); color: var(--success); border: 1px solid #bbf7d0; display: block; }
.test-connection-result.error { background: var(--error-bg); color: var(--error); border: 1px solid #fecaca; display: block; }
.form-section { margin-bottom: 24px; }
.form-section-title { font-size: 0.9rem; font-weight: 600; color: #334155; margin: 0 0 12px 0; padding-bottom: 6px; border-bottom: 1px solid var(--border); }
.router-setup-section { background: #f8fafc; border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; margin-bottom: 20px; }
.compact-table { font-size: 0.8rem; }
.compact-table th, .compact-table td { padding: 8px 10px; }
.toggle { cursor: pointer; padding: 6px 12px; border-radius: var(--radius-sm); font-size: 0.8rem; font-weight: 600; border: none; min-height: 36px; }
.toggle.on { background: #dcfce7; color: #166534; }
.toggle.off { background: #fee2e2; color: var(--error); }
.pagination { display: flex; gap: 8px; align-items: center; margin-top: 16px; flex-wrap: wrap; }
.pagination button { padding: 8px 14px; border-radius: var(--radius-sm); border: 1px solid var(--border-strong); background: var(--card); color: var(--text); cursor: pointer; font-size: 0.85rem; min-height: 40px; }
.pagination button:hover:not(:disabled) { background: var(--border); }
.pagination button:disabled { opacity: 0.5; cursor: not-allowed; }