/* ==========================================================================
   AtomLocal Admin — Global Styles
   Dark sidebar, clean content area, tables, cards.
   ========================================================================== */

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --sidebar-width: 260px;
  --header-height: 60px;
  --color-primary: #1a56db;
  --color-primary-dark: #1444b0;
  --color-primary-light: #e1effe;
  --color-sidebar-bg: #0f172a;
  --color-sidebar-text: #94a3b8;
  --color-sidebar-active: #e2e8f0;
  --color-sidebar-hover: #1e293b;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-bg: #f8fafc;
  --color-card: #ffffff;
  --color-border: #e2e8f0;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.06);
  --transition: 150ms ease;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    Oxygen, Ubuntu, Cantarell, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}

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

a:hover {
  color: var(--color-primary-dark);
}

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

/* ---------- Sidebar ---------- */
.sidebar {
  width: var(--sidebar-width);
  background: var(--color-sidebar-bg);
  color: var(--color-sidebar-text);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 50;
  overflow-y: auto;
}

.sidebar-logo {
  padding: 1.5rem 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar-logo a {
  color: #fff;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.025em;
}

.sidebar-logo a span {
  color: var(--color-primary);
}

.sidebar-logo .badge {
  display: inline-block;
  font-size: 0.625rem;
  font-weight: 600;
  background: var(--color-primary);
  color: #fff;
  padding: 0.125rem 0.5rem;
  border-radius: 999px;
  margin-left: 0.5rem;
  vertical-align: middle;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.sidebar-nav {
  flex: 1;
  padding: 1rem 0;
}

.sidebar-section {
  padding: 0 0.75rem;
  margin-bottom: 1.5rem;
}

.sidebar-section-title {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #475569;
  padding: 0 0.5rem;
  margin-bottom: 0.5rem;
}

.sidebar-nav ul {
  list-style: none;
}

.sidebar-nav li a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 0.75rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  color: var(--color-sidebar-text);
  transition: all var(--transition);
}

.sidebar-nav li a:hover {
  background: var(--color-sidebar-hover);
  color: var(--color-sidebar-active);
}

.sidebar-nav li a.active {
  background: var(--color-sidebar-hover);
  color: #fff;
}

.sidebar-nav li a .nav-icon {
  width: 20px;
  text-align: center;
  font-size: 1rem;
}

.sidebar-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.75rem;
  color: #475569;
}

/* ---------- Main Content ---------- */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
}

.topbar {
  height: var(--header-height);
  background: var(--color-card);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  position: sticky;
  top: 0;
  z-index: 40;
}

.topbar-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.content-area {
  padding: 2rem;
}

/* ---------- Page Header ---------- */
.page-header {
  margin-bottom: 2rem;
}

.page-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.25rem;
}

.page-header p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

/* ---------- Cards ---------- */
.card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.stat-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.stat-card .stat-label {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.5rem;
}

.stat-card .stat-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-text);
}

.stat-card .stat-change {
  font-size: 0.8125rem;
  margin-top: 0.25rem;
}

.stat-card .stat-change.up {
  color: var(--color-success);
}

.stat-card .stat-change.down {
  color: var(--color-danger);
}

/* ---------- Tables ---------- */
.table-wrapper {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

table th {
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  padding: 0.75rem 1rem;
  border-bottom: 2px solid var(--color-border);
}

table td {
  padding: 0.875rem 1rem;
  font-size: 0.875rem;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
}

table tbody tr:hover {
  background: #f1f5f9;
}

/* ---------- Badges ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.625rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-success {
  background: #d1fae5;
  color: #065f46;
}

.badge-warning {
  background: #fef3c7;
  color: #92400e;
}

.badge-danger {
  background: #fee2e2;
  color: #991b1b;
}

.badge-info {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border: none;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

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

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

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

.btn-ghost:hover {
  background: #f1f5f9;
  color: var(--color-text);
}

/* ---------- Placeholder / Empty State ---------- */
.placeholder-card {
  background: var(--color-card);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: 4rem 2rem;
  text-align: center;
}

.placeholder-card .placeholder-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.3;
}

.placeholder-card h2 {
  font-size: 1.5rem;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.placeholder-card p {
  color: var(--color-text-muted);
  max-width: 400px;
  margin-inline: auto;
}

.placeholder-card .badge-coming {
  display: inline-block;
  margin-top: 1.25rem;
  background: #fef3c7;
  color: #92400e;
  padding: 0.375rem 1rem;
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 600;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  :root {
    --sidebar-width: 220px;
  }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.2s ease;
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .main-content {
    margin-left: 0;
  }

  .stat-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .content-area {
    padding: 1.25rem;
  }
}

@media (max-width: 480px) {
  .stat-cards {
    grid-template-columns: 1fr;
  }
}