/* Dance Video Archive - Main CSS Entry Point */
/* Concatenated from assets/css/ for Phoenix static file serving */

/* ==========================================================================
   BASE STYLES - variables.css
   ========================================================================== */

/* Dance Video Archive - Design System Tokens */

:root {
  /* Color Palette - Modern Light Theme */
  
  /* Primary Colors */
  --color-primary: #4f46e5;
  --color-primary-light: #6366f1;
  --color-primary-dark: #4338ca;
  --color-primary-lighter: #e0e7ff;
  --color-primary-darker: #3730a3;
  
  /* Secondary Colors */
  --color-secondary: #64748b;
  --color-secondary-light: #94a3b8;
  --color-secondary-dark: #475569;
  
  /* Semantic Colors */
  --color-success: #10b981;
  --color-success-light: #d1fae5;
  --color-success-dark: #059669;
  --color-warning: #f59e0b;
  --color-warning-light: #fef3c7;
  --color-warning-dark: #d97706;
  --color-error: #ef4444;
  --color-error-light: #fee2e2;
  --color-error-dark: #dc2626;
  --color-info: #3b82f6;
  --color-info-light: #dbeafe;
  --color-info-dark: #2563eb;
  
  /* Neutral Colors */
  --color-white: #ffffff;
  --color-gray-50: #f8fafc;
  --color-gray-100: #f1f5f9;
  --color-gray-200: #e2e8f0;
  --color-gray-300: #cbd5e1;
  --color-gray-400: #94a3b8;
  --color-gray-500: #64748b;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  --color-gray-800: #1e293b;
  --color-gray-900: #0f172a;
  --color-black: #020617;
  
  /* Background Colors */
  --bg-body: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-hover: #f1f5f9;
  --bg-card: #ffffff;
  --bg-header: #ffffff;
  --bg-footer: #f1f5f9;
  
  /* Text Colors */
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #ffffff;
  --text-link: #4f46e5;
  --text-link-hover: #4338ca;
  
  /* Border Colors */
  --border-color: #e2e8f0;
  --border-color-light: #f1f5f9;
  --border-color-dark: #cbd5e1;
  
  /* Shadows */
  --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-inner: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);
  --shadow-focus: 0 0 0 3px rgb(79 70 229 / 0.25);
  
  /* Typography */
  --font-sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Monaco, Consolas, monospace;
  
  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  
  /* Font Weights */
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  
  /* Line Heights */
  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  
  /* Spacing Scale */
  --space-0: 0;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  
  /* Border Radius */
  --radius-none: 0;
  --radius-sm: 0.125rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms;
  --transition-base: 250ms;
  --transition-slow: 350ms;
  --ease-default: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Breakpoints (for reference in CSS custom properties) */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;
  
  /* Container Widths */
  --container-sm: 24rem;
  --container-md: 28rem;
  --container-lg: 32rem;
  --container-xl: 36rem;
  --container-2xl: 42rem;
  --container-3xl: 48rem;
  --container-4xl: 56rem;
  --container-5xl: 64rem;
  --container-6xl: 72rem;
  --container-7xl: 80rem;
}

/* Dark mode support (prepared for future) */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-body: #0f172a;
    --bg-surface: #1e293b;
    --bg-surface-hover: #334155;
    --bg-card: #1e293b;
    --bg-header: #1e293b;
    --bg-footer: #0f172a;
    
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    --border-color: #334155;
    --border-color-light: #1e293b;
    --border-color-dark: #475569;
  }
}

/* High contrast mode adjustments */
@media (prefers-contrast: high) {
  :root {
    --color-primary: #0000ff;
    --color-success: #008000;
    --color-error: #ff0000;
    --border-color: #000000;
    --shadow-sm: none;
    --shadow-md: none;
    --shadow-lg: none;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   BASE STYLES - reset.css
   ========================================================================== */

/* Dance Video Archive - CSS Reset & Base Styles */

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

/* Document & Body */
html {
  font-family: var(--font-sans);
  line-height: var(--leading-normal);
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background-color: var(--bg-body);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p {
  margin-bottom: var(--space-4);
  color: var(--text-secondary);
}

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

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

/* Lists */
ul, ol {
  margin-bottom: var(--space-4);
  padding-left: var(--space-6);
}

li {
  margin-bottom: var(--space-1);
  color: var(--text-secondary);
}

/* Form Elements */
input, button, select, textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

img, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

th {
  font-weight: var(--font-semibold);
  color: var(--text-primary);
}

/* Code */
code, kbd, pre {
  font-family: var(--font-mono);
  font-size: 0.875em;
}

code {
  padding: 0.125rem 0.25rem;
  background-color: var(--color-gray-100);
  border-radius: var(--radius-md);
  color: var(--color-error);
}

pre {
  padding: var(--space-4);
  background-color: var(--color-gray-900);
  color: var(--color-gray-100);
  border-radius: var(--radius-lg);
  overflow-x: auto;
}

/* Focus Styles (Accessibility) */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}

/* Selection */
::selection {
  background-color: var(--color-primary-lighter);
  color: var(--color-primary-darker);
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background-color: var(--color-gray-100);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
  background-color: var(--color-gray-400);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background-color: var(--color-gray-500);
}

/* ==========================================================================
   COMPONENT STYLES - buttons.css
   ========================================================================== */

/* Buttons - Modern, Clean Design */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  line-height: var(--leading-tight);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast) var(--ease-default);
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
}

.btn:hover {
  text-decoration: none;
}

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

.btn:disabled,
.btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Button Variants */

/* Primary Button */
.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

/* Secondary Button */
.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--text-primary);
  border-color: var(--border-color);
  box-shadow: var(--shadow-xs);
}

.btn-secondary:hover {
  background-color: var(--bg-surface-hover);
  border-color: var(--border-color-dark);
  box-shadow: var(--shadow-sm);
}

/* Ghost Button */
.btn-ghost {
  background-color: transparent;
  color: var(--text-secondary);
  border-color: transparent;
}

.btn-ghost:hover {
  background-color: var(--bg-surface-hover);
  color: var(--text-primary);
}

/* Soft Button */
.btn-soft {
  background-color: var(--color-primary-lighter);
  color: var(--color-primary);
}

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

/* Destructive Button */
.btn-danger {
  background-color: var(--color-error);
  color: var(--color-white);
}

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

/* Success Button */
.btn-success {
  background-color: var(--color-success);
  color: var(--color-white);
}

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

/* Button Sizes */
.btn-xs {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  border-radius: var(--radius-md);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  border-radius: var(--radius-md);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  border-radius: var(--radius-xl);
}

/* Button Shapes */
.btn-circle {
  padding: var(--space-3);
  border-radius: var(--radius-full);
  width: 2.75rem;
  height: 2.75rem;
}

.btn-circle.btn-sm {
  padding: var(--space-2);
  width: 2.25rem;
  height: 2.25rem;
}

.btn-circle.btn-lg {
  padding: var(--space-4);
  width: 3.25rem;
  height: 3.25rem;
}

/* Button with Icon */
.btn-icon {
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

.btn-icon svg,
.btn-icon .icon {
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
}

/* Full Width Button */
.btn-full {
  width: 100%;
}

/* Link Button */
.btn-link {
  background-color: transparent;
  color: var(--text-link);
  padding: var(--space-2);
  border: none;
  box-shadow: none;
}

.btn-link:hover {
  background-color: transparent;
  color: var(--text-link-hover);
  text-decoration: underline;
}

/* Loading State */
.btn-loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}

.btn-loading::after {
  content: '';
  position: absolute;
  width: 1rem;
  height: 1rem;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: btn-spin 1s linear infinite;
}

@keyframes btn-spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Button Group */
.btn-group {
  display: inline-flex;
  gap: 0;
}

.btn-group .btn {
  border-radius: 0;
}

.btn-group .btn:first-child {
  border-top-left-radius: var(--radius-lg);
  border-bottom-left-radius: var(--radius-lg);
}

.btn-group .btn:last-child {
  border-top-right-radius: var(--radius-lg);
  border-bottom-right-radius: var(--radius-lg);
}

.btn-group .btn:not(:last-child) {
  border-right-width: 0;
}

.btn-group .btn:not(:first-child):not(:last-child) {
  border-radius: 0;
}

/* ==========================================================================
   COMPONENT STYLES - cards.css
   ========================================================================== */

/* Cards - Clean, Modern Card Components */

.card {
  display: flex;
  flex-direction: column;
  background-color: var(--bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: all var(--transition-base) var(--ease-default);
}

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

.card:focus-within {
  box-shadow: var(--shadow-focus), var(--shadow-md);
}

/* Card Header */
.card-header {
  padding: var(--space-6);
  border-bottom: 1px solid var(--border-color);
  background-color: var(--color-gray-50);
}

.card-header-title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  margin: 0;
}

.card-header-subtitle {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-top: var(--space-1);
}

/* Card Body */
.card-body {
  flex: 1 1 auto;
  padding: var(--space-6);
}

/* Card Footer */
.card-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border-color);
  background-color: var(--color-gray-50);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
}

/* Card with Image */
.card-image {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow) var(--ease-default);
}

.card:hover .card-image img {
  transform: scale(1.05);
}

/* Video Card - Specific for Dance Archive */
.video-card {
  display: block;
  background-color: var(--bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-base) var(--ease-default);
}

.video-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  text-decoration: none;
}

.video-card__thumbnail {
  position: relative;
  aspect-ratio: 16 / 9;
  background-color: var(--color-gray-200);
  overflow: hidden;
}

.video-card__thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow) var(--ease-default);
}

.video-card:hover .video-card__thumbnail img {
  transform: scale(1.05);
}

.video-card__duration {
  position: absolute;
  bottom: var(--space-2);
  right: var(--space-2);
  background-color: rgba(0, 0, 0, 0.75);
  color: var(--color-white);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-md);
}

.video-card__info {
  padding: var(--space-4);
}

.video-card__title {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  line-height: var(--leading-snug);
  margin: 0 0 var(--space-1) 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.video-card:hover .video-card__title {
  color: var(--color-primary);
}

.video-card__meta {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin: 0;
}

.video-card__placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-gray-200) 0%, var(--color-gray-300) 100%);
  color: var(--color-gray-500);
  font-size: var(--text-sm);
}

/* Admin Video Card */
.admin-video-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-4);
  background-color: var(--bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

@media (min-width: 640px) {
  .admin-video-card {
    flex-direction: row;
    align-items: flex-start;
    gap: var(--space-6);
  }
}

.admin-video-card__thumbnail {
  flex-shrink: 0;
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: var(--color-gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

@media (min-width: 640px) {
  .admin-video-card__thumbnail {
    width: 12rem;
    aspect-ratio: 16 / 9;
  }
}

.admin-video-card__thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.admin-video-card__content {
  flex: 1;
  min-width: 0;
}

.admin-video-card__title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  margin: 0 0 var(--space-2) 0;
}

.admin-video-card__meta {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin: 0 0 var(--space-3) 0;
}

.admin-video-card__meta p {
  margin-bottom: var(--space-1);
}

.admin-video-card__description {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin: 0 0 var(--space-4) 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.admin-video-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* Card Variants */

.card-elevated {
  box-shadow: var(--shadow-lg);
  border: none;
}

.card-outlined {
  box-shadow: none;
  border: 2px solid var(--border-color);
}

.card-filled {
  background-color: var(--color-gray-50);
  border: none;
  box-shadow: none;
}

.card-compact .card-body {
  padding: var(--space-4);
}

.card-compact .card-header {
  padding: var(--space-4);
}

.card-compact .card-footer {
  padding: var(--space-3) var(--space-4);
}

/* ==========================================================================
   COMPONENT STYLES - forms.css
   ========================================================================== */

/* Forms - Clean, Accessible Form Styles */

/* Form Layout */
.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-row {
  display: grid;
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .form-row--2 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .form-row--3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Form Label */
.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.form-label-required::after {
  content: '*';
  color: var(--color-error);
  margin-left: var(--space-1);
}

.form-hint {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: var(--space-1);
}

.form-error {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-sm);
  color: var(--color-error);
  margin-top: var(--space-1);
}

.form-error::before {
  content: '⚠';
  font-size: var(--text-xs);
}

/* Input Base */
.form-input,
.form-select,
.form-textarea {
  display: block;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast) var(--ease-default);
  appearance: none;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
  opacity: 1;
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
  border-color: var(--border-color-dark);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgb(79 70 229 / 0.15);
}

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
  background-color: var(--color-gray-100);
  color: var(--text-muted);
  cursor: not-allowed;
  opacity: 0.6;
}

/* Input Sizes */
.form-input-sm,
.form-select-sm,
.form-textarea-sm {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  border-radius: var(--radius-md);
}

.form-input-lg,
.form-select-lg,
.form-textarea-lg {
  padding: var(--space-4) var(--space-5);
  font-size: var(--text-lg);
  border-radius: var(--radius-xl);
}

/* Input States */
.form-input-error,
.form-select-error,
.form-textarea-error {
  border-color: var(--color-error);
  background-color: var(--color-error-light);
}

.form-input-error:focus,
.form-select-error:focus,
.form-textarea-error:focus {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgb(239 68 68 / 0.15);
}

.form-input-success,
.form-select-success,
.form-textarea-success {
  border-color: var(--color-success);
  background-color: var(--color-success-light);
}

.form-input-success:focus,
.form-select-success:focus,
.form-textarea-success:focus {
  border-color: var(--color-success);
  box-shadow: 0 0 0 3px rgb(16 185 129 / 0.15);
}

/* Select */
.form-select {
  padding-right: var(--space-10);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748b'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  background-size: 1.25rem;
}

/* Textarea */
.form-textarea {
  min-height: 6rem;
  resize: vertical;
}

/* Checkbox & Radio */
.form-checkbox,
.form-radio {
  width: 1.25rem;
  height: 1.25rem;
  border: 2px solid var(--border-color-dark);
  background-color: var(--bg-surface);
  cursor: pointer;
  transition: all var(--transition-fast) var(--ease-default);
  flex-shrink: 0;
}

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

.form-radio {
  border-radius: var(--radius-full);
}

.form-checkbox:checked,
.form-radio:checked {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

.form-checkbox:focus,
.form-radio:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgb(79 70 229 / 0.25);
}

/* Checkbox/Radio with Label */
.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
}

.form-check-label {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-tight);
  padding-top: 0.125rem;
}

.form-check:hover .form-check-label {
  color: var(--text-primary);
}

/* Input Group */
.input-group {
  display: flex;
  align-items: stretch;
}

.input-group .form-input {
  border-radius: 0;
  flex: 1;
}

.input-group .form-input:first-child {
  border-top-left-radius: var(--radius-lg);
  border-bottom-left-radius: var(--radius-lg);
}

.input-group .form-input:last-child {
  border-top-right-radius: var(--radius-lg);
  border-bottom-right-radius: var(--radius-lg);
}

.input-group-addon {
  display: flex;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  color: var(--text-muted);
  background-color: var(--color-gray-100);
  border: 1px solid var(--border-color);
}

.input-group-addon:first-child {
  border-right: 0;
  border-top-left-radius: var(--radius-lg);
  border-bottom-left-radius: var(--radius-lg);
}

.input-group-addon:last-child {
  border-left: 0;
  border-top-right-radius: var(--radius-lg);
  border-bottom-right-radius: var(--radius-lg);
}

/* File Input */
.form-file {
  position: relative;
}

.form-file-input {
  position: absolute;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.form-file-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4);
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-xl);
  background-color: var(--color-gray-50);
  color: var(--text-muted);
  transition: all var(--transition-fast) var(--ease-default);
}

.form-file:hover .form-file-label {
  border-color: var(--color-primary);
  background-color: var(--color-primary-lighter);
  color: var(--color-primary);
}

/* Form Section */
.form-section {
  padding: var(--space-6) 0;
  border-bottom: 1px solid var(--border-color);
}

.form-section:last-child {
  border-bottom: none;
}

.form-section-title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}

/* Form Actions */
.form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-color);
  margin-top: var(--space-4);
}

/* Inline Form */
.form-inline {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: var(--space-4);
}

.form-inline .form-group {
  flex: 1 1 auto;
  min-width: 200px;
}

/* ==========================================================================
   COMPONENT STYLES - navigation.css
   ========================================================================== */

/* Navigation - Modern, Responsive Navbar */

/* Base Navbar */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
  background-color: var(--bg-header);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 50;
}

@media (min-width: 768px) {
  .navbar {
    padding: var(--space-4) var(--space-6);
  }
}

.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--text-primary);
  text-decoration: none;
  flex-shrink: 0;
}

.navbar-brand:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.navbar-brand-icon {
  width: 2rem;
  height: 2rem;
  color: var(--color-primary);
}

/* Navbar Content */
.navbar-content {
  display: none;
  align-items: center;
  gap: var(--space-2);
  flex: 1;
}

@media (min-width: 768px) {
  .navbar-content {
    display: flex;
    margin-left: var(--space-6);
  }
}

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

/* Navbar Links */
.navbar-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-secondary);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all var(--transition-fast) var(--ease-default);
}

.navbar-link:hover {
  background-color: var(--bg-surface-hover);
  color: var(--text-primary);
  text-decoration: none;
}

.navbar-link-active {
  background-color: var(--color-primary-lighter);
  color: var(--color-primary);
}

.navbar-link svg,
.navbar-link .icon {
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
}

/* Mobile Menu Toggle */
.navbar-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  padding: var(--space-2);
  color: var(--text-secondary);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast) var(--ease-default);
  background: none;
  border: none;
  cursor: pointer;
}

.navbar-toggle:hover {
  background-color: var(--bg-surface-hover);
  color: var(--text-primary);
}

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

.navbar-toggle svg,
.navbar-toggle .icon {
  width: 1.5rem;
  height: 1.5rem;
}

@media (min-width: 768px) {
  .navbar-toggle {
    display: none;
  }
}

/* Mobile Menu */
.navbar-mobile {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-surface);
  z-index: 60;
  flex-direction: column;
  padding: var(--space-4);
  overflow-y: auto;
}

.navbar-mobile.is-open {
  display: flex;
}

.navbar-mobile-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border-color);
  margin-bottom: var(--space-6);
}

.navbar-mobile-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  padding: var(--space-2);
  color: var(--text-secondary);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast) var(--ease-default);
  background: none;
  border: none;
  cursor: pointer;
}

.navbar-mobile-close:hover {
  background-color: var(--bg-surface-hover);
  color: var(--text-primary);
}

.navbar-mobile-close svg,
.navbar-mobile-close .icon {
  width: 1.5rem;
  height: 1.5rem;
}

.navbar-mobile-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.navbar-mobile-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--text-secondary);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all var(--transition-fast) var(--ease-default);
}

.navbar-mobile-link:hover {
  background-color: var(--bg-surface-hover);
  color: var(--text-primary);
  text-decoration: none;
}

.navbar-mobile-link-active {
  background-color: var(--color-primary-lighter);
  color: var(--color-primary);
}

.navbar-mobile-link svg,
.navbar-mobile-link .icon {
  width: 1.5rem;
  height: 1.5rem;
  flex-shrink: 0;
}

.navbar-mobile-footer {
  margin-top: auto;
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-color);
}

/* Avatar Dropdown */
.navbar-avatar {
  position: relative;
}

.navbar-avatar-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  font-weight: var(--font-bold);
  font-size: var(--text-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast) var(--ease-default);
}

.navbar-avatar-btn:hover {
  box-shadow: var(--shadow-md);
  transform: scale(1.05);
}

.navbar-avatar-btn:focus-visible {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgb(79 70 229 / 0.25);
}

/* Dropdown Menu */
.navbar-dropdown {
  position: relative;
}

.navbar-dropdown-trigger {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-secondary);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all var(--transition-fast) var(--ease-default);
  cursor: pointer;
  border: none;
  background: none;
}

.navbar-dropdown-trigger:hover {
  background-color: var(--bg-surface-hover);
  color: var(--text-primary);
}

.navbar-dropdown-trigger svg,
.navbar-dropdown-trigger .icon {
  width: 1rem;
  height: 1rem;
  transition: transform var(--transition-fast) var(--ease-default);
}

.navbar-dropdown.is-open .navbar-dropdown-trigger svg,
.navbar-dropdown.is-open .navbar-dropdown-trigger .icon {
  transform: rotate(180deg);
}

.navbar-dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 14rem;
  margin-top: var(--space-2);
  padding: var(--space-2);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  z-index: 50;
}

.navbar-dropdown.is-open .navbar-dropdown-menu {
  display: block;
}

.navbar-dropdown-right .navbar-dropdown-menu {
  left: auto;
  right: 0;
}

.navbar-dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all var(--transition-fast) var(--ease-default);
}

.navbar-dropdown-item:hover {
  background-color: var(--bg-surface-hover);
  color: var(--text-primary);
  text-decoration: none;
}

.navbar-dropdown-divider {
  height: 1px;
  margin: var(--space-2) 0;
  background-color: var(--border-color);
}

.navbar-dropdown-header {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Footer */
.footer {
  padding: var(--space-6) var(--space-4);
  background-color: var(--bg-footer);
  border-top: 1px solid var(--border-color);
  margin-top: auto;
}

@media (min-width: 768px) {
  .footer {
    padding: var(--space-8) var(--space-6);
  }
}

.footer-content {
  max-width: var(--container-7xl);
  margin: 0 auto;
  text-align: center;
}

.footer-text {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin: 0;
}

/* Breadcrumbs */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) 0;
  font-size: var(--text-sm);
}

.breadcrumb-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--text-link);
  text-decoration: none;
}

.breadcrumb-item:hover {
  text-decoration: underline;
}

.breadcrumb-item-active {
  color: var(--text-muted);
  pointer-events: none;
}

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

/* ==========================================================================
   COMPONENT STYLES - alerts.css
   ========================================================================== */

/* Alerts & Badges - Notifications and Status Indicators */

/* Alerts */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  border: 1px solid transparent;
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

.alert-icon {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  margin-top: 0.125rem;
}

.alert-content {
  flex: 1;
  min-width: 0;
}

.alert-title {
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-1);
}

.alert-close {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  padding: 0;
  margin: -0.25rem -0.25rem -0.25rem 0;
  color: currentColor;
  opacity: 0.5;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast) var(--ease-default);
  background: none;
  border: none;
  cursor: pointer;
}

.alert-close:hover {
  opacity: 0.7;
  background-color: rgb(0 0 0 / 0.05);
}

.alert-close svg,
.alert-close .icon {
  width: 1rem;
  height: 1rem;
}

/* Alert Variants */
.alert-info {
  background-color: var(--color-info-light);
  border-color: var(--color-info);
  color: var(--color-info-dark);
}

.alert-success {
  background-color: var(--color-success-light);
  border-color: var(--color-success);
  color: var(--color-success-dark);
}

.alert-warning {
  background-color: var(--color-warning-light);
  border-color: var(--color-warning);
  color: var(--color-warning-dark);
}

.alert-error {
  background-color: var(--color-error-light);
  border-color: var(--color-error);
  color: var(--color-error-dark);
}

/* Toast Container */
.toast-container {
  position: fixed;
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: 24rem;
  width: calc(100% - var(--space-8));
}

.toast-container-top-right {
  top: var(--space-4);
  right: var(--space-4);
}

.toast-container-top-left {
  top: var(--space-4);
  left: var(--space-4);
}

.toast-container-bottom-right {
  bottom: var(--space-4);
  right: var(--space-4);
}

.toast-container-bottom-left {
  bottom: var(--space-4);
  left: var(--space-4);
}

.toast-container-top-center {
  top: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
}

.toast-container-bottom-center {
  bottom: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
}

/* Toast */
.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  animation: toast-in var(--transition-slow) var(--ease-out);
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(-0.5rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.toast-removing {
  animation: toast-out var(--transition-fast) var(--ease-in) forwards;
}

@keyframes toast-out {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(-0.5rem);
  }
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  line-height: var(--leading-tight);
  border-radius: var(--radius-full);
  white-space: nowrap;
  transition: all var(--transition-fast) var(--ease-default);
}

.badge svg,
.badge .icon {
  width: 0.75rem;
  height: 0.75rem;
}

/* Badge Variants */
.badge-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}

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

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

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

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

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

/* Soft Badge Variants */
.badge-soft-primary {
  background-color: var(--color-primary-lighter);
  color: var(--color-primary);
}

.badge-soft-secondary {
  background-color: var(--color-gray-200);
  color: var(--color-secondary);
}

.badge-soft-success {
  background-color: var(--color-success-light);
  color: var(--color-success-dark);
}

.badge-soft-warning {
  background-color: var(--color-warning-light);
  color: var(--color-warning-dark);
}

.badge-soft-error {
  background-color: var(--color-error-light);
  color: var(--color-error-dark);
}

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

/* Outline Badge Variants */
.badge-outline-primary {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

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

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

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

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

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

/* Badge Sizes */
.badge-sm {
  padding: 0.125rem var(--space-2);
  font-size: 0.625rem;
}

.badge-lg {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
}

/* Inline remove button for use inside a badge. Sized for a comfortable
   click/tap target while the icon itself stays visually small. */
.badge-remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5em;
  height: 1.5em;
  margin-left: 0.25rem;
  padding: 0;
  background: none;
  border: none;
  color: currentColor;
  opacity: 0.8;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-size: inherit;
  line-height: 1;
  transition: opacity var(--transition-fast) var(--ease-default),
    background-color var(--transition-fast) var(--ease-default);
}

.badge-remove:hover {
  opacity: 1;
  background-color: rgb(255 255 255 / 0.25);
}

/* The icon span inside is decorative — keep its painted area small but let
   clicks pass through to the parent button for a forgiving hit target. */
.badge-remove .hero-x-mark {
  width: 0.9em;
  height: 0.9em;
  pointer-events: none;
}

/* Status Indicators */
.status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.status-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: var(--radius-full);
  background-color: currentColor;
}

.status-dot-success { color: var(--color-success); }
.status-dot-warning { color: var(--color-warning); }
.status-dot-error { color: var(--color-error); }
.status-dot-info { color: var(--color-info); }
.status-dot-neutral { color: var(--color-secondary); }

/* Status with Pulse Animation */
.status-pulse .status-dot {
  position: relative;
}

.status-pulse .status-dot::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-full);
  background-color: currentColor;
  animation: status-pulse 2s ease-out infinite;
}

@keyframes status-pulse {
  0% {
    transform: scale(1);
    opacity: 0.5;
  }
  100% {
    transform: scale(2.5);
    opacity: 0;
  }
}

/* ==========================================================================
   LAYOUT STYLES - grid.css
   ========================================================================== */

/* Grid & Layout - Responsive Grid System */

/* Container Query Support */
@supports (container-type: inline-size) {
  .container-query {
    container-type: inline-size;
  }
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--space-4);
}

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

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

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-5 {
  grid-template-columns: repeat(5, 1fr);
}

.grid-6 {
  grid-template-columns: repeat(6, 1fr);
}

/* Responsive Grid */
@media (min-width: 640px) {
  .sm-grid-1 { grid-template-columns: 1fr; }
  .sm-grid-2 { grid-template-columns: repeat(2, 1fr); }
  .sm-grid-3 { grid-template-columns: repeat(3, 1fr); }
  .sm-grid-4 { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 768px) {
  .md-grid-1 { grid-template-columns: 1fr; }
  .md-grid-2 { grid-template-columns: repeat(2, 1fr); }
  .md-grid-3 { grid-template-columns: repeat(3, 1fr); }
  .md-grid-4 { grid-template-columns: repeat(4, 1fr); }
  .md-grid-5 { grid-template-columns: repeat(5, 1fr); }
  .md-grid-6 { grid-template-columns: repeat(6, 1fr); }
}

@media (min-width: 1024px) {
  .lg-grid-1 { grid-template-columns: 1fr; }
  .lg-grid-2 { grid-template-columns: repeat(2, 1fr); }
  .lg-grid-3 { grid-template-columns: repeat(3, 1fr); }
  .lg-grid-4 { grid-template-columns: repeat(4, 1fr); }
  .lg-grid-5 { grid-template-columns: repeat(5, 1fr); }
  .lg-grid-6 { grid-template-columns: repeat(6, 1fr); }
}

@media (min-width: 1280px) {
  .xl-grid-1 { grid-template-columns: 1fr; }
  .xl-grid-2 { grid-template-columns: repeat(2, 1fr); }
  .xl-grid-3 { grid-template-columns: repeat(3, 1fr); }
  .xl-grid-4 { grid-template-columns: repeat(4, 1fr); }
  .xl-grid-5 { grid-template-columns: repeat(5, 1fr); }
  .xl-grid-6 { grid-template-columns: repeat(6, 1fr); }
}

/* Video Grid - Special Layout for Video Cards */
.video-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}

@media (min-width: 480px) {
  .video-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .video-grid {
    gap: var(--space-6);
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .video-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1280px) {
  .video-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Layout Utilities */
.content-container {
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

@media (min-width: 640px) {
  .content-container {
    padding-left: var(--space-6);
    padding-right: var(--space-6);
  }
}

@media (min-width: 1024px) {
  .content-container {
    padding-left: var(--space-8);
    padding-right: var(--space-8);
  }
}

.content-container-sm { max-width: var(--container-sm); }
.content-container-md { max-width: var(--container-md); }
.content-container-lg { max-width: var(--container-lg); }
.content-container-xl { max-width: var(--container-xl); }
.content-container-2xl { max-width: var(--container-2xl); }
.content-container-3xl { max-width: var(--container-3xl); }
.content-container-4xl { max-width: var(--container-4xl); }
.content-container-5xl { max-width: var(--container-5xl); }
.content-container-6xl { max-width: var(--container-6xl); }
.content-container-7xl { max-width: var(--container-7xl); }

/* Sidebar Layout */
.layout-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

@media (min-width: 1024px) {
  .layout-sidebar {
    flex-direction: row;
    gap: var(--space-8);
  }
  
  .layout-sidebar__sidebar {
    width: 16rem;
    flex-shrink: 0;
  }
  
  .layout-sidebar__content {
    flex: 1;
    min-width: 0;
  }
}

/* Split Layout */
.layout-split {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .layout-split {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Stacked Layout */
.layout-stacked {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

/* Admin Layout */
.admin-layout {
  padding: var(--space-4);
}

@media (min-width: 768px) {
  .admin-layout {
    padding: var(--space-6);
  }
}

@media (min-width: 1024px) {
  .admin-layout {
    padding: var(--space-8);
  }
}

/* Filter Grid */
.filter-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .filter-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .filter-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1280px) {
  .filter-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Form Grid */
.form-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .form-grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .form-grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Gap Utilities */
.gap-0 { gap: var(--space-0); }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Responsive Utilities */
@media (max-width: 639px) {
  .hidden-sm { display: none !important; }
}

@media (min-width: 640px) {
  .hidden-sm-up { display: none !important; }
}

@media (max-width: 767px) {
  .hidden-md { display: none !important; }
}

@media (min-width: 768px) {
  .hidden-md-up { display: none !important; }
}

@media (max-width: 1023px) {
  .hidden-lg { display: none !important; }
}

@media (min-width: 1024px) {
  .hidden-lg-up { display: none !important; }
}

/* Safe Area Support for Mobile */
@supports (padding: max(0px)) {
  .safe-area-inset {
    padding-left: max(var(--space-4), env(safe-area-inset-left));
    padding-right: max(var(--space-4), env(safe-area-inset-right));
  }
  
  .safe-area-bottom {
    padding-bottom: max(var(--space-4), env(safe-area-inset-bottom));
  }
}

/* ==========================================================================
   MAIN CONTENT STYLES - From app.css
   ========================================================================== */

/* App Container */
.app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.app-main {
  flex: 1;
  padding: var(--space-6) var(--space-4);
}

@media (min-width: 768px) {
  .app-main {
    padding: var(--space-8) var(--space-6);
  }
}

@media (min-width: 1024px) {
  .app-main {
    padding: var(--space-12) var(--space-8);
  }
}

/* Page Header */
.page-header {
  text-align: center;
  margin-bottom: var(--space-8);
}

@media (min-width: 768px) {
  .page-header {
    margin-bottom: var(--space-12);
  }
}

.page-title {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

@media (min-width: 768px) {
  .page-title {
    font-size: var(--text-4xl);
  }
}

.page-subtitle {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  max-width: var(--container-2xl);
  margin: 0 auto;
}

/* Section */
.section {
  padding: var(--space-8) 0;
}

.section-title {
  font-size: var(--text-2xl);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-6);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--space-12) var(--space-4);
}

.empty-state-icon {
  width: 4rem;
  height: 4rem;
  margin: 0 auto var(--space-4);
  color: var(--text-muted);
}

.empty-state-title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.empty-state-text {
  color: var(--text-muted);
  margin-bottom: var(--space-6);
  max-width: var(--container-md);
  margin-left: auto;
  margin-right: auto;
}

/* Loading State */
.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  padding: var(--space-12);
}

.loading-spinner {
  width: 2.5rem;
  height: 2.5rem;
  border: 3px solid var(--color-gray-200);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

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

/* Skeleton Loading */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-gray-200) 25%,
    var(--color-gray-100) 50%,
    var(--color-gray-200) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* Divider */
.divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin: var(--space-6) 0;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background-color: var(--border-color);
}

.divider-text {
  font-size: var(--text-sm);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Avatar */
.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  font-weight: var(--font-semibold);
  font-size: var(--text-sm);
}

.avatar-sm {
  width: 2rem;
  height: 2rem;
  font-size: var(--text-xs);
}

.avatar-lg {
  width: 3rem;
  height: 3rem;
  font-size: var(--text-base);
}

/* Icon Button */
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  padding: var(--space-2);
  color: var(--text-secondary);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast) var(--ease-default);
  background: none;
  border: none;
  cursor: pointer;
}

.icon-btn:hover {
  background-color: var(--bg-surface-hover);
  color: var(--text-primary);
}

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

.icon-btn svg,
.icon-btn .icon {
  width: 1.25rem;
  height: 1.25rem;
}

/* Filter Pills */
.filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.filter-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-secondary);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast) var(--ease-default);
}

.filter-pill:hover {
  background-color: var(--bg-surface-hover);
  border-color: var(--border-color-dark);
}

.filter-pill-active {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.filter-pill-active:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
}

/* Responsive Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
}

.table-responsive table {
  min-width: 100%;
  border: none;
}

.table-responsive th,
.table-responsive td {
  white-space: nowrap;
}

/* Search Input */
.search-input {
  position: relative;
}

.search-input-icon {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  width: 1.25rem;
  height: 1.25rem;
  color: var(--text-muted);
  pointer-events: none;
}

.search-input .form-input {
  padding-left: var(--space-12);
}

/* Animation Classes */
.fade-in {
  animation: fade-in var(--transition-base) var(--ease-out);
}

@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.slide-in {
  animation: slide-in var(--transition-base) var(--ease-out);
}

@keyframes slide-in {
  from {
    opacity: 0;
    transform: translateY(0.5rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Print Styles */
@media print {
  .navbar,
  .footer,
  .no-print {
    display: none !important;
  }
  
  .app-main {
    padding: 0;
  }
  
  body {
    background: white;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid var(--color-gray-300);
    break-inside: avoid;
  }
}

/* ==========================================================================
   BASE UTILITIES - utilities.css
   ========================================================================== */

/* Utility Classes that complement Tailwind */

/* Aspect ratio utilities for video content */
.aspect-video {
  aspect-ratio: 16 / 9;
}

.aspect-square {
  aspect-ratio: 1 / 1;
}

/* Line clamp utilities */
.line-clamp-1 {
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Container queries support for card layouts */
@supports (container-type: inline-size) {
  .container-query {
    container-type: inline-size;
  }
  
  @container (min-width: 400px) {
    .cq\:text-lg {
      font-size: 1.125rem;
    }
  }
}

/* Safe area insets for mobile devices */
@supports (padding: max(0px)) {
  .safe-area-inset {
    padding-left: max(var(--space-4), env(safe-area-inset-left));
    padding-right: max(var(--space-4), env(safe-area-inset-right));
  }
  
  .safe-area-bottom {
    padding-bottom: max(var(--space-4), env(safe-area-inset-bottom));
  }
}

/* ==========================================================================
   RESET UTILITIES - Additional utilities from reset.css
   ========================================================================== */

/* Text Utilities */
.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.text-base { font-size: var(--text-base); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }
.text-2xl { font-size: var(--text-2xl); }
.text-3xl { font-size: var(--text-3xl); }
.text-4xl { font-size: var(--text-4xl); }

.font-normal { font-weight: var(--font-normal); }
.font-medium { font-weight: var(--font-medium); }
.font-semibold { font-weight: var(--font-semibold); }
.font-bold { font-weight: var(--font-bold); }

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

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

/* Spacing Utilities */
.m-0 { margin: var(--space-0); }
.m-1 { margin: var(--space-1); }
.m-2 { margin: var(--space-2); }
.m-4 { margin: var(--space-4); }
.m-6 { margin: var(--space-6); }
.m-8 { margin: var(--space-8); }

.mt-0 { margin-top: var(--space-0); }
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

.mb-0 { margin-bottom: var(--space-0); }
.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }

.p-0 { padding: var(--space-0); }
.p-1 { padding: var(--space-1); }
.p-2 { padding: var(--space-2); }
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

.pt-4 { padding-top: var(--space-4); }
.pb-4 { padding-bottom: var(--space-4); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }
.px-6 { padding-left: var(--space-6); padding-right: var(--space-6); }
.py-6 { padding-top: var(--space-6); padding-bottom: var(--space-6); }
.px-8 { padding-left: var(--space-8); padding-right: var(--space-8); }
.py-8 { padding-top: var(--space-8); padding-bottom: var(--space-8); }

/* Layout Utilities */
.block { display: block; }
.inline { display: inline; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }
.hidden { display: none; }

.flex-1 { flex: 1 1 0%; }
.flex-auto { flex: 1 1 auto; }
.flex-none { flex: none; }
.flex-grow { flex-grow: 1; }
.flex-shrink-0 { flex-shrink: 0; }

.flex-row { flex-direction: row; }
.flex-col { flex-direction: column; }

.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }

.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.items-stretch { align-items: stretch; }

.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }

.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Position Utilities */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.top-0 { top: 0; }
.right-0 { right: 0; }
.bottom-0 { bottom: 0; }
.left-0 { left: 0; }

/* Size Utilities */
.w-full { width: 100%; }
.w-auto { width: auto; }
.w-10 { width: 2.5rem; }
.w-12 { width: 3rem; }
.h-full { height: 100%; }
.h-auto { height: auto; }
.h-10 { height: 2.5rem; }
.h-12 { height: 3rem; }

.min-h-screen { min-height: 100vh; }

/* Overflow */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-x-auto { overflow-x: auto; }

/* Container */
.container {
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

.container-sm { max-width: var(--container-sm); }
.container-md { max-width: var(--container-md); }
.container-lg { max-width: var(--container-lg); }
.container-xl { max-width: var(--container-xl); }
.container-2xl { max-width: var(--container-2xl); }
.container-3xl { max-width: var(--container-3xl); }
.container-4xl { max-width: var(--container-4xl); }
.container-5xl { max-width: var(--container-5xl); }
.container-6xl { max-width: var(--container-6xl); }
.container-7xl { max-width: var(--container-7xl); }

/* Line Clamp */
.line-clamp-1 {
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Aspect Ratio */
.aspect-video {
  aspect-ratio: 16 / 9;
}

.aspect-square {
  aspect-ratio: 1 / 1;
}

/* Screen Reader Only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Print */
@media print {
  .no-print {
    display: none !important;
  }
}

/* Autocomplete / Suggestions Dropdown */
.suggestions-menu {
  list-style: none;
  margin: 0;
  padding: var(--space-1);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-height: 15rem;
  overflow-y: auto;
}

.suggestions-menu-item {
  display: block;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--text-primary);
  border-radius: var(--radius-md);
  cursor: pointer;
}

.suggestions-menu-item:hover {
  background-color: var(--bg-surface-hover);
}

.suggestions-empty {
  padding: var(--space-3) var(--space-4);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  font-size: var(--text-sm);
  color: var(--text-muted);
}

/* Duration badge overlaid on the bottom-right of a thumbnail. */
.video-card-duration {
  position: absolute;
  bottom: var(--space-2);
  right: var(--space-2);
  padding: 0.125rem var(--space-2);
  background-color: rgba(0, 0, 0, 0.8);
  color: var(--color-white);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  line-height: 1.25;
  border-radius: var(--radius-md);
  pointer-events: none;
}

/* Spacing helpers for the search filter section. */
.filter-grid {
  margin-bottom: var(--space-4);
}

.text-search-row {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
  align-items: stretch;
}

.text-search-row > :first-child {
  flex: 1;
  min-width: 0;
}

.results-count {
  margin-bottom: var(--space-4);
  font-size: var(--text-sm);
  color: var(--text-muted);
}