*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #0f0f14;
  --sidebar: #14141f;
  --card: #1a1a28;
  --text: #f0f0f5;
  --muted: #8888a0;
  --accent: #e91e8c;
  --accent-hover: #ff3da8;
  --success: #25d366;
  --danger: #ff4757;
  --border: rgba(255, 255, 255, 0.08);
  --radius: 12px;
}

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

a {
  color: var(--accent);
  text-decoration: none;
}

/* Login */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
}

.login-card {
  width: 100%;
  max-width: 400px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.login-card h1 {
  font-size: 1.5rem;
  margin-bottom: 4px;
}

.login-card .subtitle {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

/* Layout */
.admin-layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 240px;
  background: var(--sidebar);
  border-right: 1px solid var(--border);
  padding: 24px 16px;
  flex-shrink: 0;
}

.sidebar-brand {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 32px;
  color: var(--accent);
}

.sidebar-nav a {
  display: block;
  padding: 10px 14px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 4px;
  transition: background 0.15s, color 0.15s;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
  background: rgba(233, 30, 140, 0.12);
  color: var(--accent);
}

.sidebar-footer {
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.sidebar-footer a {
  display: block;
  padding: 8px 14px;
  color: var(--muted);
  font-size: 0.85rem;
}

.main-content {
  flex: 1;
  padding: 32px;
  overflow-x: auto;
}

.page-header {
  margin-bottom: 24px;
}

.page-header h1 {
  font-size: 1.5rem;
}

.page-header p {
  color: var(--muted);
  font-size: 0.9rem;
}

/* Cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.stat-card .label {
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-card .value {
  font-size: 2rem;
  font-weight: 700;
  margin-top: 4px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
}

.card h2 {
  font-size: 1.1rem;
  margin-bottom: 16px;
}

/* Forms */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.9rem;
  font-family: inherit;
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group .hint {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 4px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-success {
  background: var(--success);
  color: #fff;
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
}

/* Alerts */
.alert {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.alert-success {
  background: rgba(37, 211, 102, 0.15);
  border: 1px solid var(--success);
  color: var(--success);
}

.alert-error {
  background: rgba(255, 71, 87, 0.15);
  border: 1px solid var(--danger);
  color: var(--danger);
}

/* Table */
.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th,
td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-active {
  background: rgba(37, 211, 102, 0.15);
  color: var(--success);
}

.badge-inactive {
  background: rgba(255, 71, 87, 0.15);
  color: var(--danger);
}

.actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  .admin-layout {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .sidebar-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
  }

  .sidebar-nav a {
    margin-bottom: 0;
  }

  .main-content {
    padding: 20px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}