/* ==========================================================
   Admin Dashboard — Material-style theme
   Palette: dark navbar + purple / amber / magenta / teal cards
   ========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&family=Inter:wght@400;500;600&display=swap');

:root {
  /* Brand gradient colors (mirrors the reference stat cards) */
  --c-purple-1: #7b3fe4;
  --c-purple-2: #5a1fb8;
  --c-orange-1: #ffb648;
  --c-orange-2: #fb8c00;
  --c-pink-1:   #b24ce0;
  --c-pink-2:   #7a1fb0;
  --c-teal-1:   #2dd4bf;
  --c-teal-2:   #0c9488;
  --c-blue-1:   #4facfe;
  --c-blue-2:   #2563eb;

  --bg: #f2f4f9;
  --card-bg: #ffffff;
  --text-dark: #1e2130;
  --text-muted: #8b90a5;
  --border-soft: #edeef4;

  --navbar-bg: #16161f;
  --navbar-text: #ffffff;

  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;

  --shadow-card: 0 6px 18px rgba(30, 33, 48, 0.08);
  --shadow-card-hover: 0 12px 28px rgba(30, 33, 48, 0.14);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text-dark);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, .stat-value, .topbar-title {
  font-family: 'Poppins', 'Inter', sans-serif;
}

a { text-decoration: none; color: inherit; }

/* ---------------- Top Bar ---------------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--navbar-bg);
  color: var(--navbar-text);
  padding: 16px 28px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
}

.topbar-title {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.2px;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.admin-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--navbar-text);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  transition: background 0.2s ease, transform 0.15s ease;
}

.admin-btn:hover {
  background: rgba(255, 255, 255, 0.18);
  transform: translateY(-1px);
}

.admin-profile {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 500;
}

.admin-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-purple-1), var(--c-pink-2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}

/* ---------------- Content Area ---------------- */
.content-area {
  padding: 28px;
  max-width: 1280px;
  margin: 0 auto;
}

.db-error {
  background: #fff4e5;
  border: 1px solid #ffcf87;
  color: #9a5b00;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  font-size: 0.9rem;
}

/* ---------------- Stat Cards ---------------- */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 20px;
  margin-bottom: 36px;
}

.stat-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  padding: 22px 22px 20px;
  color: #fff;
  min-height: 118px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  background: linear-gradient(135deg, var(--c-purple-1), var(--c-purple-2));
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

/* color variants — cycle through the palette */
.stat-card.stat-purple { background: linear-gradient(135deg, var(--c-purple-1), var(--c-purple-2)); }
.stat-card.stat-orange { background: linear-gradient(135deg, var(--c-orange-1), var(--c-orange-2)); }
.stat-card.stat-pink   { background: linear-gradient(135deg, var(--c-pink-1),   var(--c-pink-2)); }
.stat-card.stat-teal   { background: linear-gradient(135deg, var(--c-teal-1),   var(--c-teal-2)); }
.stat-card.stat-blue   { background: linear-gradient(135deg, var(--c-blue-1),   var(--c-blue-2)); }

.stat-card-icon {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.22);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.stat-label {
  font-size: 0.82rem;
  font-weight: 500;
  opacity: 0.9;
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.stat-value {
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1.1;
}

.stat-sub {
  font-size: 0.78rem;
  opacity: 0.85;
  margin-top: 6px;
}

/* ---------------- Sections ---------------- */
.section {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 28px;
  box-shadow: var(--shadow-card);
}

.section-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-dark);
}

/* ---------------- Quick Access Cards ---------------- */
.admin-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
}

.admin-card {
  background: #fafbfe;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 22px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.admin-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
  border-color: transparent;
}

.admin-card-icon {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-purple-1), var(--c-pink-2));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.admin-card-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-dark);
}

/* ---------------- Tables ---------------- */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  min-width: 600px;
}

thead {
  background: #f6f4fd;
}

th {
  text-align: left;
  padding: 12px 16px;
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  border-bottom: 1px solid var(--border-soft);
}

td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--border-soft);
  color: var(--text-dark);
}

tbody tr:last-child td { border-bottom: none; }

tbody tr:hover { background: #faf9ff; }

.empty-row {
  text-align: center;
  color: var(--text-muted);
  padding: 24px;
}

/* ---------------- Responsive ---------------- */
@media (max-width: 640px) {
  .topbar { padding: 14px 16px; flex-wrap: wrap; gap: 10px; }
  .topbar-actions { gap: 8px; }
  .admin-profile span { display: none; }
  .content-area { padding: 16px; }
  .stat-value { font-size: 1.6rem; }
  .section { padding: 18px; }
}