/* Quickstudio Web Interface - Clean, Simple, Functional */

:root {
  /* ============================================
     Brand Colors (constant across themes)
     ============================================ */
  --primary-color: #2563eb;
  --primary-dark: #1e40af;
  --primary-light: #dbeafe;
  --secondary-color: #10b981;
  --danger-color: #ef4444;
  --warning-color: #f59e0b;

  /* ============================================
     Base Gray Scale (constant)
     ============================================ */
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;

  /* ============================================
     Semantic Theme Variables (Light Mode Default)
     These are overridden by [data-theme="dark"]
     ============================================ */
  --bg-page: var(--gray-50);
  --bg-card: white;
  --bg-card-alt: var(--gray-100);
  --bg-input: white;
  --bg-hover: var(--gray-50);
  --bg-table-header: var(--gray-100);

  --text-primary: var(--gray-900);
  --text-secondary: var(--gray-700);
  --text-muted: var(--gray-500);
  --text-on-primary: white;

  --border-color: var(--gray-200);
  --border-color-strong: var(--gray-300);

  --sidebar-bg: var(--gray-900);
  --sidebar-text: rgba(255, 255, 255, 0.8);
  --sidebar-text-hover: white;
  --sidebar-border: rgba(255, 255, 255, 0.1);

  --modal-backdrop: rgba(0, 0, 0, 0.5);

  /* ============================================
     Font Sizes (can be scaled by data-font-size)
     ============================================ */
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;

  /* ============================================
     Spacing & Effects (constant)
     ============================================ */
  --border-radius: 8px;
  --transition: all 0.2s ease;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* ============================================
   DARK THEME
   ============================================ */
[data-theme="dark"] {
  --bg-page: #0f172a;
  --bg-card: #1e293b;
  --bg-card-alt: #334155;
  --bg-input: #1e293b;
  --bg-hover: #334155;
  --bg-table-header: #1e293b;

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-on-primary: white;

  --border-color: #475569;
  --border-color-strong: #64748b;

  --sidebar-bg: #020617;
  --sidebar-text: rgba(255, 255, 255, 0.9);
  --sidebar-text-hover: white;
  --sidebar-border: rgba(255, 255, 255, 0.15);

  --modal-backdrop: rgba(0, 0, 0, 0.7);

  /* Adjust primary-light for dark mode contrast */
  --primary-light: #1e40af;

  /* Shadows need more opacity in dark mode */
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
}

/* ============================================
   LARGE FONT MODE (Accessibility)
   ============================================ */
[data-font-size="large"] {
  --font-size-xs: 0.875rem;
  --font-size-sm: 1rem;
  --font-size-base: 1.125rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 1.75rem;
  --font-size-3xl: 2.25rem;
}

/* ============================================
   HIGH CONTRAST MODE (Accessibility)
   ============================================ */
[data-high-contrast="true"] {
  --text-primary: #000000;
  --text-secondary: #1a1a1a;
  --text-muted: #333333;
  --border-color: #000000;
  --border-color-strong: #000000;
}

[data-theme="dark"][data-high-contrast="true"] {
  --text-primary: #ffffff;
  --text-secondary: #f0f0f0;
  --text-muted: #e0e0e0;
  --border-color: #ffffff;
  --border-color-strong: #ffffff;
}

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

html,
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: var(--font-size-base);
  color: var(--text-primary);
  background-color: var(--bg-page);
  line-height: 1.5;
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.sidebar-layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  min-height: 100vh;
  gap: 0;
}

.sidebar {
  background-color: var(--sidebar-bg);
  color: var(--sidebar-text);
  padding: 1.5rem 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-brand {
  padding: 0 1.5rem 1.5rem;
  border-bottom: 1px solid var(--sidebar-border);
  margin-bottom: 1rem;
}

.sidebar-brand h1 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.sidebar-brand .subtitle {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 0.25rem;
}

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

.sidebar-nav li {
  margin: 0;
}

.sidebar-nav a {
  display: block;
  padding: 0.75rem 1.5rem;
  color: var(--sidebar-text);
  text-decoration: none;
  transition: var(--transition);
  border-left: 3px solid transparent;
}

.sidebar-nav a:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--sidebar-text-hover);
}

.sidebar-nav a.active {
  background-color: var(--primary-color);
  color: white;
  border-left-color: var(--secondary-color);
}

.main-content {
  padding: 2rem;
  overflow-y: auto;
}

.top-bar {
  background-color: var(--bg-card);
  padding: 1rem 2rem;
  box-shadow: var(--shadow);
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: -2rem -2rem 2rem -2rem;
  margin-bottom: 2rem;
}

.top-bar-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.user-info {
  text-align: right;
}

.user-name {
  font-weight: 600;
  color: var(--text-primary);
}

.user-role {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

/* Typography */
h1 {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

h2 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--text-primary);
  margin: 1.5rem 0 1rem 0;
}

h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-secondary);
  margin: 1rem 0 0.5rem 0;
}

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.page-title {
  margin-bottom: 0.25rem;
}

.page-subtitle {
  color: var(--text-muted);
  font-size: var(--font-size-base);
}

/* Cards */
.card {
  background-color: var(--bg-card);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.card-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1rem;
  margin-bottom: 1rem;
}

.card-header h3 {
  margin: 0;
}

.card-body {
  flex: 1;
}

.card-footer {
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
  margin-top: 1rem;
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* ============================================
   Metrics Cards - Theme-Aware Design
   ============================================ */
.metric-card {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  text-align: center;
  border: 1px solid var(--border-color);
  transition: var(--transition);
  container-type: inline-size;
}

.metric-card:hover {
  box-shadow: var(--shadow-lg);
}

.metric-card .metric-label {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.metric-card .metric-value {
  font-size: clamp(1.1rem, 4.5vw, var(--font-size-3xl));
  font-size: clamp(1.1rem, 14cqi, var(--font-size-3xl));
  font-weight: 700;
  color: var(--text-primary);
  margin: 0.5rem 0;
  line-height: 1.2;
}

.metric-card .metric-change {
  font-size: var(--font-size-sm);
  margin-top: 0.5rem;
  color: var(--text-muted);
}

.metric-change.positive {
  color: var(--secondary-color);
}

.metric-change.negative {
  color: var(--danger-color);
}

.metric-change.neutral {
  color: var(--text-muted);
}

/* ---- Metric Card Variants ---- */

/* Primary variant - blue accent */
.metric-card.metric-primary {
  border-left: 4px solid var(--primary-color);
}

.metric-card.metric-primary .metric-value {
  color: var(--primary-color);
}

/* Success variant - green accent (for positive metrics like revenue, paid) */
.metric-card.metric-success {
  border-left: 4px solid var(--secondary-color);
}

.metric-card.metric-success .metric-value {
  color: var(--secondary-color);
}

/* Warning variant - orange accent (for attention items) */
.metric-card.metric-warning {
  border-left: 4px solid var(--warning-color);
}

.metric-card.metric-warning .metric-value {
  color: var(--warning-color);
}

/* Danger variant - red accent (for overdue, outstanding) */
.metric-card.metric-danger {
  border-left: 4px solid var(--danger-color);
}

.metric-card.metric-danger .metric-value {
  color: var(--danger-color);
}

/* Neutral variant - gray accent (for counts, statistics) */
.metric-card.metric-neutral {
  border-left: 4px solid var(--gray-400);
}

.metric-card.metric-neutral .metric-value {
  color: var(--text-primary);
}

/* ---- Dark Mode Adjustments ---- */
[data-theme="dark"] .metric-card {
  border-color: var(--border-color);
}

[data-theme="dark"] .metric-card.metric-success .metric-value {
  color: #34d399; /* Brighter green for dark mode */
}

[data-theme="dark"] .metric-card.metric-warning .metric-value {
  color: #fbbf24; /* Brighter amber for dark mode */
}

[data-theme="dark"] .metric-card.metric-danger .metric-value {
  color: #f87171; /* Brighter red for dark mode */
}

/* ---- High Contrast Mode ---- */
[data-high-contrast="true"] .metric-card {
  border-width: 2px;
}

[data-high-contrast="true"] .metric-card .metric-value {
  color: var(--text-primary);
}

[data-high-contrast="true"] .metric-card.metric-primary,
[data-high-contrast="true"] .metric-card.metric-success,
[data-high-contrast="true"] .metric-card.metric-warning,
[data-high-contrast="true"] .metric-card.metric-danger {
  border-left-width: 6px;
}

/* ---- Large Font Mode ---- */
[data-font-size="large"] .metric-card {
  padding: 2rem;
}

[data-font-size="large"] .metric-card .metric-value {
  font-size: clamp(1.3rem, 5.5vw, 2.5rem);
  font-size: clamp(1.3rem, 16cqi, 2.5rem);
}

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

table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1rem;
}

table thead {
  background-color: var(--bg-table-header);
}

table th {
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 2px solid var(--border-color);
}

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

table tbody tr {
  transition: var(--transition);
}

table tbody tr:hover {
  background-color: var(--bg-hover);
}

table .status-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.status-active {
  background-color: #dcfce7;
  color: #166534;
}

.status-pending {
  background-color: #fef3c7;
  color: #92400e;
}

.status-completed {
  background-color: #dbeafe;
  color: #0c4a6e;
}

.status-cancelled {
  background-color: #fee2e2;
  color: #991b1b;
}

.status-paid {
  background-color: #dcfce7;
  color: #166534;
}

.status-outstanding {
  background-color: #fee2e2;
  color: #991b1b;
}

.status-overdue {
  background-color: #fee2e2;
  color: #991b1b;
}

/* Buttons */
button,
.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  border: none;
  border-radius: var(--border-radius);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

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

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

.btn-secondary {
  background-color: var(--bg-card-alt);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background-color: var(--bg-hover);
}

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

.btn-danger:hover {
  background-color: #dc2626;
}

.btn-success {
  background-color: var(--secondary-color);
  color: white;
}

.btn-success:hover {
  background-color: #059669;
}

.btn-sm {
  padding: 0.25rem 0.75rem;
  font-size: 0.875rem;
}

.btn-block {
  display: block;
  width: 100%;
}

.btn-group {
  display: flex;
  gap: 0.5rem;
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-secondary);
}

input,
select,
textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color-strong);
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  font-family: inherit;
  transition: var(--transition);
  background-color: var(--bg-input);
  color: var(--text-primary);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-light);
}

input[type="checkbox"],
input[type="radio"] {
  width: auto;
  margin-right: 0.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

/* Alerts */
.alert {
  padding: 1rem;
  border-radius: var(--border-radius);
  margin-bottom: 1rem;
}

.alert-info {
  background-color: #eff6ff;
  border-left: 4px solid var(--primary-color);
  color: #0c4a6e;
}

.alert-success {
  background-color: #dcfce7;
  border-left: 4px solid var(--secondary-color);
  color: #166534;
}

.alert-warning {
  background-color: #fef3c7;
  border-left: 4px solid var(--warning-color);
  color: #92400e;
}

.alert-danger {
  background-color: #fee2e2;
  border-left: 4px solid var(--danger-color);
  color: #991b1b;
}

/* List View */
.list-item {
  display: flex;
  align-items: center;
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

.list-item:last-child {
  border-bottom: none;
}

.list-item:hover {
  background-color: var(--bg-hover);
}

.list-item-content {
  flex: 1;
}

.list-item-title {
  font-weight: 600;
  color: var(--text-primary);
}

.list-item-subtitle {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

.list-item-meta {
  text-align: right;
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

/* Calendar (Simple) */
.calendar {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
}

.calendar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.calendar-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.calendar-weekday {
  text-align: center;
  font-weight: 600;
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  padding: 0.5rem 0;
}

.calendar-days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.5rem;
}

.calendar-day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition);
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  background-color: var(--bg-card);
}

.calendar-day:hover {
  background-color: var(--primary-light);
  border-color: var(--primary-color);
}

.calendar-day.today {
  font-weight: 700;
  color: var(--primary-color);
}

.calendar-day.other-month {
  color: var(--text-muted);
  opacity: 0.5;
}

/* Selected must come last to override other states */
.calendar-day.selected {
  background-color: var(--primary-light);
  border: 3px solid var(--primary-color);
  font-weight: 700;
  font-size: 1.1em;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--modal-backdrop);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  max-width: 600px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-body {
  padding: 1.5rem;
}

.modal-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0;
}

/* ============================================
   Mobile Hamburger Menu
   ============================================ */
.hamburger-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem;
  line-height: 1;
  border-radius: 4px;
  transition: var(--transition);
}

.hamburger-btn:hover {
  background-color: var(--bg-hover);
}

.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 998;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.sidebar-overlay.active {
  pointer-events: auto;
  opacity: 1;
}

.sidebar-close-btn {
  display: none;
  background: none;
  border: none;
  color: var(--sidebar-text);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  line-height: 1;
  border-radius: 4px;
  position: absolute;
  top: 1.25rem;
  right: 0.75rem;
}

.sidebar-close-btn:hover {
  color: var(--sidebar-text-hover);
  background-color: rgba(255, 255, 255, 0.1);
}

/* Responsive */
@media (max-width: 768px) {
  .sidebar-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100vh;
    z-index: 999;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }

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

  .hamburger-btn {
    display: block;
  }

  .sidebar-close-btn {
    display: block;
  }

  .main-content {
    padding: 1rem;
  }

  .top-bar {
    margin: -1rem -1rem 1rem -1rem;
    padding: 0.75rem 1rem;
  }

  .page-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }

  .grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  }

  .grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  }

  table {
    font-size: 0.875rem;
  }

  table th,
  table td {
    padding: 0.75rem;
  }

  h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1.25rem;
  }
}

/* Utilities */
.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.text-muted {
  color: var(--text-muted);
}

.font-bold {
  font-weight: 700;
}

.mt-1 {
  margin-top: 0.5rem;
}

.mt-2 {
  margin-top: 1rem;
}

.mt-4 {
  margin-top: 2rem;
}

.mb-1 {
  margin-bottom: 0.5rem;
}

.mb-2 {
  margin-bottom: 1rem;
}

.mb-4 {
  margin-bottom: 2rem;
}

.p-1 {
  padding: 0.5rem;
}

.p-2 {
  padding: 1rem;
}

.gap-1 {
  gap: 0.5rem;
}

.gap-2 {
  gap: 1rem;
}

.hidden {
  display: none;
}

.flex {
  display: flex;
}

.flex-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
}

.loading {
  opacity: 0.6;
  pointer-events: none;
}

.spinner {
  display: inline-block;
  width: 1rem;
  height: 1rem;
  border: 2px solid var(--gray-300);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ===== Chart Styles ===== */
.chart-container {
  position: relative;
  height: 300px;
  margin: 1rem 0;
  padding: 1rem 0;
}

/* ===== List Item Styles ===== */
.list-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.list-group .list-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem;
  border-bottom: 1px solid var(--border-color);
  transition: background-color 0.2s;
}

.list-group .list-item:hover {
  background-color: var(--bg-hover);
}

.list-group .list-item:last-child {
  border-bottom: none;
}

.list-group .list-item-content {
  flex: 1;
}

.list-group .list-item-title {
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.list-group .list-item-meta {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

.list-item-value {
  font-weight: 600;
  color: var(--primary-color);
  white-space: nowrap;
  margin-left: 1rem;
}

/* ===== Statistics Grid ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1rem;
}

.stat-item {
  text-align: center;
  padding: 1rem;
  background-color: var(--bg-card-alt);
  border-radius: 0.5rem;
  border: 1px solid var(--border-color);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.stat-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--primary-color);
}

/* ===== Table Responsive ===== */
.table-responsive {
  overflow-x: auto;
}

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

.data-table thead {
  background-color: var(--bg-table-header);
}

.data-table th {
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 2px solid var(--border-color);
}

.data-table td {
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
}

.data-table tbody tr:hover {
  background-color: var(--bg-hover);
}

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

/* ============================================
   Toast Notifications
   ============================================ */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  padding: 1rem 1.5rem;
  border-radius: var(--border-radius);
  color: white;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  z-index: 2000;
  opacity: 0;
  transform: translateY(1rem);
  transition: opacity 0.3s, transform 0.3s;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.toast-success {
  background-color: var(--secondary-color);
}

.toast-error {
  background-color: var(--danger-color);
}

.toast-info {
  background-color: var(--primary-color);
}

.toast-warning {
  background-color: var(--warning-color);
  color: var(--gray-900);
}

/* ============================================
   Theme Toggle Button (Quick toggle in header)
   ============================================ */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background-color: var(--bg-card-alt);
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: var(--transition);
}

.theme-toggle:hover {
  background-color: var(--bg-hover);
}

.theme-toggle .theme-icon {
  font-size: 1.25rem;
}

/* ============================================
   Settings Page Styles
   ============================================ */
.settings-section {
  margin-bottom: 2rem;
}

.setting-group {
  margin-bottom: 1.5rem;
}

.setting-group h3 {
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.setting-row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 1rem;
  align-items: center;
  padding: 0.75rem 0;
}

.setting-row label {
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0;
}

.setting-description {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* Toggle switch for settings */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 3rem;
  height: 1.5rem;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--gray-300);
  transition: var(--transition);
  border-radius: 1.5rem;
}

.toggle-slider:before {
  position: absolute;
  content: "";
  height: 1.125rem;
  width: 1.125rem;
  left: 0.1875rem;
  bottom: 0.1875rem;
  background-color: white;
  transition: var(--transition);
  border-radius: 50%;
}

input:checked + .toggle-slider {
  background-color: var(--primary-color);
}

input:checked + .toggle-slider:before {
  transform: translateX(1.5rem);
}

@media (max-width: 768px) {
  .setting-row {
    grid-template-columns: 1fr;
  }

  .toast {
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
  }
}