/* ==========================================================================
   HorseShowStream - Main Stylesheet
   Generated with fingerprint-based design system
   ========================================================================== */

/* ==========================================================================
   1. CSS Reset - Normalize
   ========================================================================== */

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

html {
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
  -moz-tab-size: 4;
  tab-size: 4;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  line-height: inherit;
}

hr {
  height: 0;
  color: inherit;
  border-top-width: 1px;
}

abbr[title] {
  text-decoration: underline dotted;
}

b,
strong {
  font-weight: bolder;
}

code,
kbd,
samp,
pre {
  font-family: ui-monospace, SFMono-Regular, Consolas, 'Liberation Mono', Menlo, monospace;
  font-size: 1em;
}

small {
  font-size: 80%;
}

sub,
sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

sub {
  bottom: -0.25em;
}

sup {
  top: -0.5em;
}

table {
  text-indent: 0;
  border-color: inherit;
  border-collapse: collapse;
}

button,
input,
optgroup,
select,
textarea {
  font-family: inherit;
  font-size: 100%;
  line-height: inherit;
  color: inherit;
  margin: 0;
  padding: 0;
}

button,
select {
  text-transform: none;
}

button,
[type='button'],
[type='reset'],
[type='submit'] {
  -webkit-appearance: button;
  background-color: transparent;
  background-image: none;
}

:-moz-focusring {
  outline: auto;
}

:-moz-ui-invalid {
  box-shadow: none;
}

progress {
  vertical-align: baseline;
}

::-webkit-inner-spin-button,
::-webkit-outer-spin-button {
  height: auto;
}

[type='search'] {
  -webkit-appearance: textfield;
  outline-offset: -2px;
}

::-webkit-search-decoration {
  -webkit-appearance: none;
}

::-webkit-file-upload-button {
  -webkit-appearance: button;
  font: inherit;
}

summary {
  display: list-item;
}

blockquote,
dl,
dd,
h1,
h2,
h3,
h4,
h5,
h6,
hr,
figure,
p,
pre {
  margin: 0;
}

fieldset {
  margin: 0;
  padding: 0;
}

legend {
  padding: 0;
}

ol,
ul,
menu {
  list-style: none;
  margin: 0;
  padding: 0;
}

textarea {
  resize: vertical;
}

input::placeholder,
textarea::placeholder {
  opacity: 1;
  color: #9ca3af;
}

button,
[role="button"] {
  cursor: pointer;
}

:disabled {
  cursor: default;
}

img,
svg,
video,
canvas,
audio,
iframe,
embed,
object {
  display: block;
  vertical-align: middle;
}

img,
video {
  max-width: 100%;
  height: auto;
}

[hidden] {
  display: none;
}

/* ==========================================================================
   2. Design Tokens - CSS Variables
   ========================================================================== */

:root {
--color-primary: #1e40af;
  --color-primary-dark: #1e3a8a;
  --color-primary-light: #3b82f6;
  --color-secondary: #059669;
  --color-secondary-dark: #047857;
  --color-accent: #dc2626;
  --color-accent-dark: #b91c1c;
  --color-neutral-50: #f9fafb;
  --color-neutral-100: #f3f4f6;
  --color-neutral-200: #e5e7eb;
  --color-neutral-300: #d1d5db;
  --color-neutral-400: #9ca3af;
  --color-neutral-500: #6b7280;
  --color-neutral-600: #4b5563;
  --color-neutral-700: #374151;
  --color-neutral-800: #1f2937;
  --color-neutral-900: #111827;
  --color-text: #1f2937;
  --color-text-light: #6b7280;
  --color-white: #ffffff;
  --color-success: #10b981;
  --color-error: #ef4444;
  --color-warning: #f59e0b;
  --color-info: #3b82f6;
--font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-family-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-base: 1rem;
  --font-size-sm: clamp(0.875rem, 0.8rem + 0.25vw, 1rem);
  --font-size-md: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --font-size-lg: clamp(1.125rem, 1rem + 0.625vw, 1.5rem);
  --font-size-xl: clamp(1.5rem, 1.25rem + 1.25vw, 2.25rem);
  --font-size-2xl: clamp(2rem, 1.5rem + 2.5vw, 3.5rem);
  --font-size-3xl: clamp(2.5rem, 2rem + 3vw, 4.5rem);

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
--spacing-xs: clamp(0.5rem, 0.4rem + 0.5vw, 0.75rem);
  --spacing-sm: clamp(0.75rem, 0.6rem + 0.75vw, 1.25rem);
  --spacing-md: clamp(1rem, 0.8rem + 1vw, 1.5rem);
  --spacing-lg: clamp(1.5rem, 1.2rem + 1.5vw, 2.5rem);
  --spacing-xl: clamp(2rem, 1.5rem + 2.5vw, 4rem);
  --spacing-2xl: clamp(3rem, 2rem + 5vw, 6rem);
  --spacing-3xl: clamp(4rem, 3rem + 6vw, 8rem);
--container-max: 1280px;
  --container-padding: clamp(1rem, 5vw, 2rem);
  --grid-gap: var(--spacing-md);
  --border-radius: 0.5rem;
  --border-radius-lg: 1rem;
  --border-radius-xl: 1.5rem;
  --border-width: 1px;
--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
--transition-base: 0.2s ease;
  --transition-slow: 0.3s ease;
  --transition-fast: 0.15s ease;
}

/* ==========================================================================
   3. Base Styles
   ========================================================================== */

html {
  font-size: 16px;
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-family-heading);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-neutral-900);
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-md);
}

h2 {
  font-size: var(--font-size-2xl);
}

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

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

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

h6 {
  font-size: var(--font-size-base);
}

p {
  margin-bottom: var(--spacing-md);
}

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

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

/* ==========================================================================
   4. Grid Layout System
   ========================================================================== */

.grid-layout {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto 1fr auto;
  min-height: 100vh;
  grid-template-areas:
    "header"
    "main"
    "footer";
}

.grid-main {
  grid-area: main;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.grid-content {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.grid-section {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: var(--grid-gap);
}

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

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

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

/* ==========================================================================
   5. Header & Navigation
   ========================================================================== */

.site-header {
  grid-area: header;
  background-color: var(--color-white);
  border-bottom: var(--border-width) solid var(--color-neutral-200);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--spacing-sm) var(--container-padding);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.site-logo svg {
  width: 32px;
  height: 32px;
}

.site-nav {
  display: none;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: var(--spacing-xs) var(--spacing-sm);
  color: var(--color-neutral-700);
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-base);
}

.nav-link:hover {
  color: var(--color-primary);
}

.nav-link.active {
  color: var(--color-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-primary);
}
.mobile-menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  padding: var(--spacing-xs);
  cursor: pointer;
}

.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-neutral-700);
  transition: all var(--transition-base);
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}
.mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--color-white);
  border-top: var(--border-width) solid var(--color-neutral-200);
  box-shadow: var(--shadow-lg);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.mobile-menu.active {
  display: block;
  max-height: 500px;
}

.mobile-menu .nav-list {
  flex-direction: column;
  padding: var(--spacing-md);
  gap: 0;
}

.mobile-menu .nav-item {
  width: 100%;
  border-bottom: var(--border-width) solid var(--color-neutral-100);
}

.mobile-menu .nav-link {
  padding: var(--spacing-sm) var(--spacing-md);
}

@media (min-width: 768px) {
  .site-nav {
    display: block;
  }

  .mobile-menu-toggle {
    display: none;
  }
}
.auth-buttons {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.btn-login {
  padding: var(--spacing-xs) var(--spacing-md);
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
  background: none;
  border: none;
  cursor: pointer;
  transition: color var(--transition-base);
}

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

/* ==========================================================================
   6. Hero Section
   ========================================================================== */

.hero-section {
  position: relative;
  padding: var(--spacing-2xl) 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
}

.hero-content h1 {
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
}

.hero-content p {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.9);
  max-width: 700px;
  margin: 0 auto var(--spacing-xl);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  justify-content: center;
}
.video-hero {
  position: relative;
  padding: var(--spacing-3xl) 0;
  background-color: var(--color-neutral-900);
  color: var(--color-white);
}

.video-hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.video-hero-background::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(30, 64, 175, 0.8) 0%, rgba(30, 58, 138, 0.9) 100%);
}

.video-hero-background video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
}

.video-hero-content h1 {
  color: var(--color-white);
}

/* ==========================================================================
   7. Metrics Cards
   ========================================================================== */

.metrics-section {
  padding: var(--spacing-xl) 0;
  background-color: var(--color-neutral-50);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
  gap: var(--spacing-md);
}

.metric-card {
  background-color: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.metric-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.metric-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--spacing-md);
  color: var(--color-primary);
}

.metric-value {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.metric-label {
  font-size: var(--font-size-md);
  color: var(--color-text-light);
}

/* ==========================================================================
   8. Featured Videos
   ========================================================================== */

.featured-section {
  padding: var(--spacing-2xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-title {
  margin-bottom: var(--spacing-sm);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
  max-width: 700px;
  margin: 0 auto;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr));
  gap: var(--spacing-lg);
}

.video-card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.video-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.video-thumbnail {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  background-color: var(--color-neutral-200);
  overflow: hidden;
}

.video-thumbnail img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-play-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 64px;
  height: 64px;
  background-color: rgba(30, 64, 175, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  transition: transform var(--transition-base);
}

.video-card:hover .video-play-overlay {
  transform: translate(-50%, -50%) scale(1.1);
}

.video-duration {
  position: absolute;
  bottom: var(--spacing-xs);
  right: var(--spacing-xs);
  background-color: rgba(0, 0, 0, 0.8);
  color: var(--color-white);
  padding: 4px 8px;
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.video-info {
  padding: var(--spacing-md);
}

.video-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-xs);
  color: var(--color-neutral-900);
}

.video-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  margin-bottom: var(--spacing-sm);
}

.video-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: var(--line-height-relaxed);
}

.video-category-badge {
  display: inline-block;
  padding: 4px 12px;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

/* ==========================================================================
   9. Category Navigation
   ========================================================================== */

.category-nav-section {
  padding: var(--spacing-xl) 0;
  background-color: var(--color-neutral-50);
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr));
  gap: var(--spacing-md);
}

.category-card {
  background-color: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  cursor: pointer;
}

.category-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.category-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--spacing-md);
  color: var(--color-primary);
}

.category-name {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-neutral-900);
  margin-bottom: var(--spacing-xs);
}

.category-count {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

/* ==========================================================================
   10. Pricing Cards
   ========================================================================== */

.pricing-section {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-white);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: var(--spacing-lg);
  max-width: 1100px;
  margin: 0 auto;
}

.pricing-card {
  background-color: var(--color-white);
  border: 2px solid var(--color-neutral-200);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary);
}

.pricing-card.featured {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  position: relative;
}

.pricing-card.featured::before {
  content: 'Most Popular';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-accent);
  color: var(--color-white);
  padding: 4px 16px;
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}

.pricing-plan-name {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-sm);
  color: var(--color-neutral-900);
}

.pricing-price {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.pricing-price-currency {
  font-size: var(--font-size-xl);
}

.pricing-period {
  font-size: var(--font-size-md);
  color: var(--color-text-light);
  margin-bottom: var(--spacing-lg);
}

.pricing-features {
  list-style: none;
  margin-bottom: var(--spacing-lg);
}

.pricing-features li {
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--color-neutral-100);
  font-size: var(--font-size-md);
  color: var(--color-neutral-700);
}

.pricing-features li:last-child {
  border-bottom: none;
}

.pricing-features li::before {
  content: '✓';
  color: var(--color-success);
  font-weight: var(--font-weight-bold);
  margin-right: var(--spacing-xs);
}

/* ==========================================================================
   11. Instructor Grid
   ========================================================================== */

.instructors-section {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-neutral-50);
}

.instructor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr));
  gap: var(--spacing-lg);
}

.instructor-card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.instructor-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.instructor-avatar {
  width: 120px;
  height: 120px;
  margin: 0 auto var(--spacing-md);
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--color-primary);
}

.instructor-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.instructor-name {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-xs);
  color: var(--color-neutral-900);
}

.instructor-title {
  font-size: var(--font-size-md);
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
}

.instructor-bio {
  font-size: var(--font-size-sm);
  color: var(--color-neutral-700);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-md);
}

.instructor-stats {
  display: flex;
  justify-content: space-around;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-neutral-200);
}

.instructor-stat {
  text-align: center;
}

.instructor-stat-value {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.instructor-stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

/* ==========================================================================
   12. FAQ Accordion
   ========================================================================== */

.faq-section {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-white);
}

.faq-container {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-neutral-200);
  margin-bottom: var(--spacing-md);
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: var(--spacing-md);
  background-color: var(--color-neutral-50);
  border: none;
  border-radius: var(--border-radius);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-neutral-900);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color var(--transition-base);
}

.faq-question:hover {
  background-color: var(--color-neutral-100);
}

.faq-question-icon {
  width: 24px;
  height: 24px;
  transition: transform var(--transition-base);
}

.faq-question.active .faq-question-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.faq-answer.active {
  max-height: 500px;
}

.faq-answer-content {
  padding: var(--spacing-md);
  font-size: var(--font-size-md);
  color: var(--color-neutral-700);
  line-height: var(--line-height-relaxed);
}

/* ==========================================================================
   13. Contact Form
   ========================================================================== */

.contact-section {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-neutral-50);
}

.contact-container {
  max-width: 800px;
  margin: 0 auto;
}

.contact-form {
  background-color: var(--color-white);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
  color: var(--color-neutral-900);
  margin-bottom: var(--spacing-xs);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-md);
  color: var(--color-neutral-900);
  background-color: var(--color-white);
  border: 1px solid var(--color-neutral-300);
  border-radius: var(--border-radius);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.form-error {
  display: block;
  color: var(--color-error);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
}

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

/* ==========================================================================
   14. Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  text-align: center;
  text-decoration: none;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

.primary-button:hover,
.btn-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
  background-color: var(--color-secondary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

.btn-accent:hover {
  background-color: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

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

.btn-ghost {
  background-color: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
}

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

.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-sm);
}

/* ==========================================================================
   15. CTA Sections
   ========================================================================== */

.cta-section {
  padding: var(--spacing-2xl) 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  text-align: center;
}

.cta-section h2 {
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
}

.cta-section p {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.9);
  max-width: 700px;
  margin: 0 auto var(--spacing-xl);
}

/* ==========================================================================
   16. Auth Pages
   ========================================================================== */

.auth-section {
  min-height: calc(100vh - 80px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl) 0;
  background-color: var(--color-neutral-50);
}

.auth-card {
  width: 100%;
  max-width: 450px;
  background-color: var(--color-white);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
}

.auth-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.auth-title {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-sm);
}

.auth-subtitle {
  font-size: var(--font-size-md);
  color: var(--color-text-light);
}

.auth-form .form-group {
  margin-bottom: var(--spacing-md);
}

.auth-form .btn {
  width: 100%;
  margin-top: var(--spacing-md);
}

.auth-divider {
  display: flex;
  align-items: center;
  text-align: center;
  margin: var(--spacing-lg) 0;
  color: var(--color-text-light);
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid var(--color-neutral-300);
}

.auth-divider::before {
  margin-right: var(--spacing-sm);
}

.auth-divider::after {
  margin-left: var(--spacing-sm);
}

.auth-footer {
  text-align: center;
  margin-top: var(--spacing-lg);
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

.auth-footer a {
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
}

.alert {
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-sm);
}

.alert-success {
  background-color: #d1fae5;
  color: #065f46;
  border: 1px solid #10b981;
}

.alert-error {
  background-color: #fee2e2;
  color: #991b1b;
  border: 1px solid #ef4444;
}

.alert-info {
  background-color: #dbeafe;
  color: #1e40af;
  border: 1px solid #3b82f6;
}

/* ==========================================================================
   17. Footer
   ========================================================================== */

.site-footer {
  grid-area: footer;
  background-color: var(--color-neutral-900);
  color: var(--color-neutral-300);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-column h3 {
  color: var(--color-white);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: var(--color-neutral-300);
  transition: color var(--transition-base);
}

.footer-links a:hover {
  color: var(--color-white);
}

.footer-social {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--color-neutral-800);
  border-radius: 50%;
  color: var(--color-white);
  transition: background-color var(--transition-base);
}

.footer-social a:hover {
  background-color: var(--color-primary);
}

.footer-bottom {
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-neutral-800);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-neutral-400);
}

/* ==========================================================================
   18. Utility Classes
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

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

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

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

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

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

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

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

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

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

.bg-neutral {
  background-color: var(--color-neutral-50);
}

.mb-0 {
  margin-bottom: 0;
}

.mb-sm {
  margin-bottom: var(--spacing-sm);
}

.mb-md {
  margin-bottom: var(--spacing-md);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.mb-xl {
  margin-bottom: var(--spacing-xl);
}

.mt-0 {
  margin-top: 0;
}

.mt-sm {
  margin-top: var(--spacing-sm);
}

.mt-md {
  margin-top: var(--spacing-md);
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

.mt-xl {
  margin-top: var(--spacing-xl);
}

.hidden {
  display: none;
}

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

/* ==========================================================================
   19. Scroll Reveal Animations
   ========================================================================== */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.scroll-reveal {
  opacity: 0;
  animation: fadeInUp 0.6s ease forwards;
}

.scroll-reveal-delay-1 {
  animation-delay: 0.1s;
}

.scroll-reveal-delay-2 {
  animation-delay: 0.2s;
}

.scroll-reveal-delay-3 {
  animation-delay: 0.3s;
}

.scroll-reveal-delay-4 {
  animation-delay: 0.4s;
}

/* ==========================================================================
   20. Responsive Breakpoints
   ========================================================================== */
@media (min-width: 768px) {
  .hero-actions {
    justify-content: center;
  }

  .mobile-menu {
    display: none !important;
  }

  .faq-answer.active {
    max-height: 800px;
  }
}
@media (min-width: 1024px) {
  .video-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .instructor-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (min-width: 1280px) {
  .video-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}
@media print {
  .site-header,
  .site-footer,
  .mobile-menu-toggle,
  .auth-buttons,
  .hero-actions,
  .btn {
    display: none;
  }

  body {
    color: #000;
    background: #fff;
  }
}