/* ============================================================================
   XIBO CMS MODERN THEME - OTS Signance
   Design Token System & Component Overrides
   ============================================================================ */

/* ---------------------------------------------------------------------------
   DESIGN TOKENS - Color Palette, Typography & Spacing
   ---------------------------------------------------------------------------
   These CSS variables define the modern design system. Update here to
   theme entire CMS. Supports light and dark mode via data-theme attr.
   --------------------------------------------------------------------------- */

:root {
  /* Color Tokens */
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-primary-light: #3b82f6;
  --color-primary-lighter: #dbeafe;
  --color-secondary: #7c3aed;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-info: #0ea5e9;
  
  /* Neutral Palette (Gray) */
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;
  
  /* Semantic Colors */
  --color-background: #ffffff;
  --color-surface: #f9fafb;
  --color-surface-elevated: #ffffff;
  --color-border: #e5e7eb;
  --color-border-light: #f3f4f6;
  --color-text-primary: #1f2937;
  --color-text-secondary: #6b7280;
  --color-text-tertiary: #9ca3af;
  --color-text-inverse: #ffffff;
  
  /* Component Colors */
  --color-link: var(--color-primary);
  --color-link-hover: var(--color-primary-dark);
  --color-link-visited: #7c3aed;
  
  /* Typography */
  --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-family-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Menlo, Courier, monospace;
  
  --font-size-xs: 0.75rem;      /* 12px */
  --font-size-sm: 0.875rem;     /* 14px */
  --font-size-base: 1rem;       /* 16px */
  --font-size-lg: 1.125rem;     /* 18px */
  --font-size-xl: 1.25rem;      /* 20px */
  --font-size-2xl: 1.5rem;      /* 24px */
  --font-size-3xl: 1.875rem;    /* 30px */
  --font-size-4xl: 2.25rem;     /* 36px */
  
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  --line-height-tight: 1.25;
  --line-height-snug: 1.375;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 2;
  
  /* Spacing (8px base unit) */
  --space-0: 0;
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-7: 1.75rem;   /* 28px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  
  /* Border Radius */
  --radius-none: 0;
  --radius-sm: 0.25rem;
  --radius-base: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Shadows (elevation system) */
  --shadow-none: none;
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-base: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 200ms ease-in-out;
  --transition-slow: 300ms ease-in-out;
  
  /* Breakpoints (mobile-first) */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;
}

/* Dark mode overrides (opt-in)
   Add data-theme="dark" to <html> or <body> to enable */
:root {
  color-scheme: light;
}

:root[data-theme="dark"],
body[data-theme="dark"] {
  --color-background: #0f172a;
  --color-surface: #1e293b;
  --color-surface-elevated: #334155;
  --color-border: #475569;
  --color-border-light: #1e293b;
  --color-text-primary: #f1f5f9;
  --color-text-secondary: #cbd5e1;
  --color-text-tertiary: #94a3b8;
  --color-text-inverse: #0f172a;
  color-scheme: dark;
}

/* ---------------------------------------------------------------------------
   GLOBAL STYLES
   --------------------------------------------------------------------------- */

html {
  font-size: 16px;
}

body {
  background-color: var(--color-background);
  color: var(--color-text-primary);
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  transition: background-color var(--transition-base), color var(--transition-base);
}

/* ---------------------------------------------------------------------------
   TYPOGRAPHY
   --------------------------------------------------------------------------- */

h1, h2, h3, h4, h5, h6 {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  margin-top: var(--space-6);
  margin-bottom: var(--space-4);
}

h1 {
  font-size: var(--font-size-4xl);
}

h2 {
  font-size: var(--font-size-3xl);
}

h3 {
  font-size: var(--font-size-2xl);
}

h4 {
  font-size: var(--font-size-xl);
}

h5 {
  font-size: var(--font-size-lg);
}

h6 {
  font-size: var(--font-size-base);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

p {
  margin-bottom: var(--space-4);
  line-height: var(--line-height-relaxed);
}

small {
  font-size: var(--font-size-sm);
}

/* ---------------------------------------------------------------------------
   LINKS & INTERACTIVE ELEMENTS
   --------------------------------------------------------------------------- */

a {
  color: var(--color-link);
  text-decoration: none;
  transition: color var(--transition-fast);
  outline: none;
}

a:hover {
  color: var(--color-link-hover);
  text-decoration: underline;
}

a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ---------------------------------------------------------------------------
   HEADER / NAVIGATION BAR
   --------------------------------------------------------------------------- */

.row.header {
  background-color: var(--color-surface-elevated);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-xs);
  padding: var(--space-4);
  margin-bottom: var(--space-6);
}

.navbar-default {
  background-color: var(--color-surface-elevated);
  border-bottom: 1px solid var(--color-border);
  border-radius: 0;
  box-shadow: none;
  margin-bottom: 0;
}

.navbar-default .navbar-brand {
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
  padding: var(--space-2) var(--space-4);
}

.navbar-default .navbar-nav > li > a {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-normal);
  padding: var(--space-3) var(--space-4);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.navbar-default .navbar-nav > li > a:hover,
.navbar-default .navbar-nav > li > a:focus,
.navbar-default .navbar-nav > .open > a,
.navbar-default .navbar-nav > .open > a:hover,
.navbar-default .navbar-nav > .open > a:focus,
.navbar-default .navbar-nav > .show > a,
.navbar-default .navbar-nav > .show > a:hover,
.navbar-default .navbar-nav > .show > a:focus {
  background-color: var(--color-primary-lighter);
  color: var(--color-primary-dark);
}

/* ---------------------------------------------------------------------------
   SIDEBAR NAVIGATION
   --------------------------------------------------------------------------- */

#sidebar-wrapper {
  background-color: var(--color-surface);
  border-right: 1px solid var(--color-border);
}

ul.sidebar .sidebar-main a,
.sidebar-footer {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  padding: var(--space-4);
}

ul.sidebar .sidebar-main a:hover {
  background-color: var(--color-primary-dark);
}

ul.sidebar .sidebar-title a {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-3) var(--space-4);
}

ul.sidebar .sidebar-list a {
  color: var(--color-text-primary);
  padding: var(--space-3) var(--space-4);
  padding-left: var(--space-6);
  transition: background-color var(--transition-fast), color var(--transition-fast);
  border-left: 3px solid transparent;
}

ul.sidebar .sidebar-list a:hover,
ul.sidebar .sidebar-list a:focus,
#page-wrapper:not(.active) ul.sidebar .sidebar-title.separator {
  background-color: var(--color-primary-lighter);
  color: var(--color-primary);
  border-left-color: var(--color-primary);
}

ul.sidebar .sidebar-list a.active {
  background-color: var(--color-primary-lighter);
  color: var(--color-primary);
  border-left-color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

/* Mobile: hamburger toggle for sidebar */
@media (max-width: 768px) {
  #sidebar-wrapper {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    max-width: 250px;
    height: 100vh;
    transition: left var(--transition-base);
    z-index: 999;
  }
  
  #sidebar-wrapper.active {
    left: 0;
  }
  
  #page-wrapper {
    margin-left: 0;
  }
}

/* ---------------------------------------------------------------------------
   WELL & CONTAINER COMPONENTS
   --------------------------------------------------------------------------- */

.well {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
  box-shadow: var(--shadow-xs);
}

.well.well-sm {
  padding: var(--space-4);
}

.well.well-lg {
  padding: var(--space-8);
}

/* ---------------------------------------------------------------------------
   WIDGET CARD STYLING
   --------------------------------------------------------------------------- */

.widget {
  background-color: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.widget:hover {
  box-shadow: var(--shadow-base);
  transform: translateY(-1px);
}

.widget .widget-title {
  background-color: var(--color-primary-lighter);
  color: var(--color-primary);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  padding: var(--space-4) var(--space-6);
  margin: 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.widget-body {
  padding: var(--space-6);
}

.widget-footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-4) var(--space-6);
}

/* Dashboard grid responsiveness */
.dashboard-widget-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

@media (max-width: 768px) {
  .dashboard-widget-container {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
}

/* ---------------------------------------------------------------------------
   BUTTONS & FORM CONTROLS
   --------------------------------------------------------------------------- */

button,
.btn {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
}

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

.btn-secondary {
  background-color: var(--color-gray-200);
  color: var(--color-text-primary);
  border-color: var(--color-gray-300);
}

.btn-secondary:hover {
  background-color: var(--color-gray-300);
  border-color: var(--color-gray-400);
}

.btn-success {
  background-color: var(--color-success);
  color: var(--color-text-inverse);
}

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

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

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

/* ---------------------------------------------------------------------------
   FORM ELEMENTS
   --------------------------------------------------------------------------- */

input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"],
input[type="url"],
input[type="number"],
input[type="date"],
input[type="time"],
textarea,
select {
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  padding: var(--space-3) var(--space-4);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="search"]:focus,
input[type="url"]:focus,
input[type="number"]:focus,
input[type="date"]:focus,
input[type="time"]:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-lighter);
}

/* ---------------------------------------------------------------------------
   ALERTS & MESSAGES
   --------------------------------------------------------------------------- */

.alert {
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-6);
  margin-bottom: var(--space-6);
  border-left: 4px solid;
}

.alert-success {
  background-color: #d1fae5;
  border-color: var(--color-success);
  color: #047857;
}

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

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

.alert-info {
  background-color: #cffafe;
  border-color: var(--color-info);
  color: #0c4a6e;
}

/* ---------------------------------------------------------------------------
   TABLES
   --------------------------------------------------------------------------- */

table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-6);
}

thead {
  background-color: var(--color-surface);
  border-bottom: 2px solid var(--color-border);
}

th {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-semibold);
  padding: var(--space-4);
  text-align: left;
}

td {
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4);
}

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

/* ---------------------------------------------------------------------------
   RESPONSIVE GRID & LAYOUT
   ---------------------------------------------------------------------------
   Note: Do not override Bootstrap grid classes (row/col/container) here.
   These overrides can shift button placement and layout flow in Xibo.
   Use component-specific wrappers instead.
   --------------------------------------------------------------------------- */

/* ---------------------------------------------------------------------------
   UTILITIES
   --------------------------------------------------------------------------- */

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

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

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

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

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

.bg-light {
  background-color: var(--color-surface);
}

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

.border {
  border: 1px solid var(--color-border);
}

.rounded {
  border-radius: var(--radius-md);
}

.shadow {
  box-shadow: var(--shadow-base);
}

/* ---------------------------------------------------------------------------
   DASHBOARD VIEW (custom override)
   --------------------------------------------------------------------------- */

.dashboard-modern {
  --dashboard-bg: #0b1224;
  --dashboard-surface: #0f172a;
  --dashboard-surface-2: #111b32;
  --dashboard-border: rgba(148, 163, 184, 0.18);
  --dashboard-text: #e2e8f0;
  --dashboard-text-muted: #94a3b8;
  --dashboard-accent: #22c55e;

  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  background: radial-gradient(1200px 600px at 0% 0%, #0f1a3a 0%, #0b1224 45%, #0a1020 100%);
  color: var(--dashboard-text);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.dashboard-hero {
  background-color: transparent;
  border: none;
  border-radius: 0;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  box-shadow: none;
}

.dashboard-hero__title h1 {
  margin: 0;
  color: var(--dashboard-text);
  font-size: var(--font-size-3xl);
}

.dashboard-hero__title p {
  margin: var(--space-2) 0 0 0;
  color: var(--dashboard-text-muted);
}

.dashboard-hero__actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.dashboard-hero__actions .btn-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background-color: #ffffff;
  color: #0f172a;
  font-size: 1.25rem;
  line-height: 1;
  border: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: var(--shadow-xs);
}

.dashboard-hero__actions .btn-icon:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

@media (max-width: 768px) {
  .dashboard-hero {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Dashboard widget cards */
.dashboard-modern .widget,
.dashboard-modern .well,
.dashboard-modern .panel {
  background-color: var(--dashboard-surface);
  border: 1px solid var(--dashboard-border);
  box-shadow: none;
  color: var(--dashboard-text);
}

.dashboard-modern .widget .widget-title,
.dashboard-modern .panel-heading,
.dashboard-modern .well h1,
.dashboard-modern .well h2,
.dashboard-modern .well h3 {
  background-color: transparent;
  color: var(--dashboard-text);
  border-bottom: 1px solid var(--dashboard-border);
}

.dashboard-modern .widget-body,
.dashboard-modern .panel-body {
  background-color: transparent;
  color: var(--dashboard-text);
}

.dashboard-modern .text-muted,
.dashboard-modern .muted,
.dashboard-modern .help-block {
  color: var(--dashboard-text-muted);
}

.dashboard-modern table,
.dashboard-modern thead,
.dashboard-modern tbody,
.dashboard-modern th,
.dashboard-modern td {
  color: var(--dashboard-text);
  border-color: var(--dashboard-border);
}

.dashboard-modern a {
  color: #60a5fa;
}

.dashboard-modern a:hover {
  color: #93c5fd;
}

.dashboard-modern .btn-primary {
  background-color: #0ea5e9;
  border-color: #0ea5e9;
  color: #0b1224;
}

.dashboard-modern .btn-secondary {
  background-color: transparent;
  border-color: var(--dashboard-border);
  color: var(--dashboard-text);
}

/* Spacing utilities */
.m-0 { margin: 0; }
.mt-4 { margin-top: var(--space-4); }
.mb-4 { margin-bottom: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mb-6 { margin-bottom: var(--space-6); }

.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }

.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

/* ---------------------------------------------------------------------------
   GLOBAL LAYOUT & SHELL
   --------------------------------------------------------------------------- */

#page-wrapper {
  background-color: var(--color-background);
  min-height: 100vh;
}

.page-title,
.page-title h1,
.page-title h2 {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-semibold);
}

.breadcrumb {
  background: transparent;
  margin-bottom: var(--space-4);
  padding: 0;
}

.breadcrumb > li + li:before {
  color: var(--color-text-tertiary);
}

/* ---------------------------------------------------------------------------
   TOP NAVIGATION
   --------------------------------------------------------------------------- */

.navbar-default {
  background-color: var(--color-surface-elevated);
  border-bottom: 1px solid var(--color-border);
}

.navbar-default .navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.navbar-default .navbar-nav > li > a {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
}

.navbar-default .navbar-nav > li > a .badge,
.navbar-default .navbar-nav > li > a .label {
  margin-left: var(--space-2);
}

.navbar-default .dropdown-menu {
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  border-radius: var(--radius-md);
  padding: var(--space-2);
}

.navbar-default .dropdown-menu > li > a {
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
}

.navbar-default .dropdown-menu > li > a:hover {
  background-color: var(--color-primary-lighter);
  color: var(--color-primary-dark);
}

/* ---------------------------------------------------------------------------
   SIDEBAR NAVIGATION (enhanced)
   --------------------------------------------------------------------------- */

ul.sidebar .sidebar-title.separator {
  padding: var(--space-2) var(--space-4);
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: var(--font-size-xs);
}

ul.sidebar .sidebar-list a .icon {
  margin-right: var(--space-2);
}

/* ---------------------------------------------------------------------------
   CARDS & PANELS
   --------------------------------------------------------------------------- */

.card,
.panel,
.panel-default {
  background-color: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xs);
  overflow: hidden;
}

.card-header,
.panel-heading {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) var(--space-6);
  font-weight: var(--font-weight-semibold);
}

.card-body,
.panel-body {
  padding: var(--space-6);
}

.card-footer,
.panel-footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-4) var(--space-6);
}

/* ---------------------------------------------------------------------------
   BUTTONS (sizes & variants)
   --------------------------------------------------------------------------- */

.btn-sm {
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: var(--space-4) var(--space-6);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-lg);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--color-border);
  color: var(--color-text-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary-lighter);
  color: var(--color-primary-dark);
  border-color: var(--color-primary-light);
}

/* ---------------------------------------------------------------------------
   FORMS & INPUTS (Bootstrap compatible)
   --------------------------------------------------------------------------- */

.form-control {
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-lighter);
}

.input-group-addon,
.input-group-text {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.control-label,
label {
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

/* ---------------------------------------------------------------------------
   TABLES & DATA GRIDS
   --------------------------------------------------------------------------- */

.table,
table.table {
  background-color: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.table > thead > tr > th,
table.table > thead > tr > th {
  background-color: var(--color-surface);
  color: var(--color-text-primary);
  font-weight: var(--font-weight-semibold);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4);
}

.table > tbody > tr > td,
table.table > tbody > tr > td {
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.table-striped > tbody > tr:nth-of-type(odd) {
  background-color: var(--color-surface);
}

.table-hover > tbody > tr:hover {
  background-color: var(--color-primary-lighter);
}

.dataTables_wrapper .dataTables_filter input,
.dataTables_wrapper .dataTables_length select {
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  padding: var(--space-2) var(--space-3);
}

/* ---------------------------------------------------------------------------
   TABS & NAV PILLS
   --------------------------------------------------------------------------- */

.nav-tabs {
  border-bottom: 1px solid var(--color-border);
}

.nav-tabs > li > a {
  border: 1px solid transparent;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  color: var(--color-text-secondary);
  padding: var(--space-3) var(--space-4);
}

.nav-tabs > li.active > a,
.nav-tabs > li.active > a:hover,
.nav-tabs > li.active > a:focus {
  background-color: var(--color-surface-elevated);
  border-color: var(--color-border);
  color: var(--color-text-primary);
}

.nav-pills > li > a {
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-4);
}

/* ---------------------------------------------------------------------------
   BADGES & LABELS
   --------------------------------------------------------------------------- */

.badge,
.label {
  border-radius: var(--radius-full);
  padding: 0.2em 0.6em;
  font-weight: var(--font-weight-semibold);
}

.label-success,
.badge-success {
  background-color: var(--color-success);
}

.label-danger,
.badge-danger {
  background-color: var(--color-danger);
}

.label-warning,
.badge-warning {
  background-color: var(--color-warning);
}

.label-info,
.badge-info {
  background-color: var(--color-info);
}

/* ---------------------------------------------------------------------------
   MODALS
   --------------------------------------------------------------------------- */

.modal-content {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
}

.modal-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) var(--space-6);
}

.modal-title {
  font-weight: var(--font-weight-semibold);
}

.modal-body {
  padding: var(--space-6);
}

.modal-footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-4) var(--space-6);
}

/* ---------------------------------------------------------------------------
   PAGINATION
   --------------------------------------------------------------------------- */

.pagination > li > a,
.pagination > li > span {
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  border-radius: var(--radius-md);
  margin: 0 var(--space-1);
}

.pagination > .active > a,
.pagination > .active > span {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text-inverse);
}

/* ---------------------------------------------------------------------------
   TWO-COLUMN LAYOUT (Displays, Media Library)
   --------------------------------------------------------------------------- */

.ots-theme.two-column-layout {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-6);
  min-height: calc(100vh - var(--topbar-height, 60px) - var(--space-6) * 2);
}

.ots-theme .left-panel {
  flex: 0 0 260px;
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.ots-theme .left-panel .panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-2);
}

.ots-theme .left-panel h3 {
  margin: 0;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
}

.ots-theme .folder-tree {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.ots-theme .folder-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  cursor: pointer;
  user-select: none;
  transition: background-color 150ms ease;
  font-size: var(--font-size-sm);
}

.ots-theme .folder-item:hover {
  background-color: var(--color-border-light);
}

.ots-theme .folder-item.active {
  background-color: var(--color-primary-lighter);
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

.ots-theme .folder-icon {
  display: inline-block;
  font-size: 1.2em;
  flex: 0 0 auto;
}

.ots-theme .folder-name {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ots-theme .content-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.ots-theme .page-header {
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.ots-theme .page-header h1 {
  margin: 0 0 var(--space-1) 0;
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
}

.ots-theme .page-header .text-muted {
  margin: 0;
  color: var(--color-text-secondary);
}

.ots-theme .content-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.ots-theme .search-field {
  flex: 1;
  min-width: 200px;
  max-width: 400px;
}

.ots-theme .toolbar-actions {
  display: flex;
  gap: var(--space-3);
  align-items: center;
}

.ots-theme .stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-4);
}

.ots-theme .stat-box {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  text-align: center;
}

.ots-theme .stat-label {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-1);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.ots-theme .stat-value {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

.ots-theme .stat-value.text-success {
  color: var(--color-success);
}

.ots-theme .stat-value.text-danger {
  color: var(--color-danger);
}

/* Table wrapper for sticky header */
.ots-theme .table-wrapper {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow-x: auto;
}

.ots-theme .table-wrapper .table {
  margin-bottom: 0;
}

.ots-theme .table-wrapper th {
  position: sticky;
  top: 0;
  background-color: var(--color-surface-elevated);
  font-weight: var(--font-weight-semibold);
  z-index: 10;
}

/* Media Grid */
.ots-theme .media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-6);
  padding: var(--space-6);
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  min-height: 300px;
}

.ots-theme .media-item {
  background-color: var(--color-background);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: all 200ms ease;
  cursor: pointer;
}

.ots-theme .media-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.ots-theme .media-item-thumbnail {
  width: 100%;
  aspect-ratio: 4 / 3;
  background-color: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2em;
  border-bottom: 1px solid var(--color-border);
}

.ots-theme .media-item-info {
  padding: var(--space-3);
}

.ots-theme .media-item-name {
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  margin: 0 0 var(--space-1) 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ots-theme .media-item-size {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  margin: 0;
}

.ots-theme .empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-12);
  text-align: center;
}

.ots-theme .empty-icon {
  font-size: 3em;
  margin-bottom: var(--space-4);
}

.ots-theme .empty-state h3 {
  margin: 0 0 var(--space-2) 0;
  font-size: var(--font-size-xl);
  color: var(--color-text-primary);
}

.ots-theme .empty-state p {
  margin: 0 0 var(--space-6) 0;
  color: var(--color-text-secondary);
  max-width: 300px;
}

/* ---------------------------------------------------------------------------
   RESPONSIVE ADJUSTMENTS
   --------------------------------------------------------------------------- */

@media (max-width: 1024px) {
  .ots-theme.two-column-layout {
    flex-direction: column;
  }

  .ots-theme .left-panel {
    flex: 1;
  }

  .ots-theme.two-column-layout .left-panel {
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .ots-theme.two-column-layout {
    padding: var(--space-4);
    gap: var(--space-3);
  }

  .ots-theme .content-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .ots-theme .search-field {
    max-width: 100%;
  }

  .ots-theme .toolbar-actions {
    flex-direction: column;
  }

  .ots-theme .toolbar-actions .btn {
    width: 100%;
  }

  .ots-theme .media-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: var(--space-4);
    padding: var(--space-4);
  }

  .ots-theme .page-header h1 {
    font-size: var(--font-size-2xl);
  }
}

/* ---------------------------------------------------------------------------
   DARK MODE OVERRIDES FOR COMPONENTS
   --------------------------------------------------------------------------- */

[data-theme="dark"] .ots-theme .left-panel {
  background-color: var(--color-surface);
  border-color: var(--color-border);
}

[data-theme="dark"] .ots-theme .folder-item:hover {
  background-color: var(--color-gray-700);
}

[data-theme="dark"] .ots-theme .stat-box,
[data-theme="dark"] .ots-theme .table-wrapper,
[data-theme="dark"] .ots-theme .media-grid {
  background-color: var(--color-surface);
  border-color: var(--color-border);
}

[data-theme="dark"] .ots-theme .media-item {
  background-color: var(--color-gray-800);
  border-color: var(--color-border);
}

[data-theme="dark"] .ots-theme .media-item:hover {
  background-color: var(--color-gray-750);
}

[data-theme="dark"] .ots-theme .table-wrapper th {
  background-color: var(--color-gray-800);
}

/* ---------------------------------------------------------------------------
   UTILITY CLASSES
   --------------------------------------------------------------------------- */

.ots-theme .btn-icon-sm {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border: none;
  background-color: transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color 150ms ease;
  font-size: 1em;
}

.ots-theme .btn-icon-sm:hover {
  background-color: var(--color-border-light);
}

.ots-theme .text-muted {
  color: var(--color-text-secondary) !important;
}

.ots-theme .text-success {
  color: var(--color-success) !important;
}

.ots-theme .text-danger {
  color: var(--color-danger) !important;
}

.ots-theme .text-warning {
  color: var(--color-warning) !important;
}

.ots-theme .text-info {
  color: var(--color-info) !important;
}