/* ==========================================================================
   Ask Academy Live - Design System
   ========================================================================== */

/* ==========================================================================
   1. CSS Custom Properties (Design Tokens)
   ========================================================================== */

:root {
  /* Typography Tokens */
  --font-body: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'IBM Plex Sans', 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', monospace;

  /* Primary Colors - Crimson Red Brand Color */
  --color-primary: #EC0000;
  --color-primary-dark: #D30000;
  --color-black: #000000;
  --color-dark-gray: #292929;
  
  /* Neutral Colors */
  --color-white: #FFFFFF;
  --color-off-white: #FBFBFB;
  --color-light-gray: #F2F5F7;
  --color-border: #E3E5EB;
  
  /* Semantic Colors */
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --color-info: #3B82F6;
  
  /* Font Sizes */
  --text-xs: 0.75rem;    /* 12px */
  --text-sm: 0.875rem;   /* 14px */
  --text-base: 1rem;     /* 16px */
  --text-lg: 1.125rem;   /* 18px */
  --text-xl: 1.25rem;    /* 20px */
  --text-2xl: 1.5rem;    /* 24px */
  --text-3xl: 2rem;      /* 32px */
  --text-4xl: 2.75rem;   /* 44px */
  --text-5xl: 3.5rem;    /* 56px */
  
  /* Spacing Scale */
  --space-1: 0.25rem;    /* 4px */
  --space-2: 0.5rem;     /* 8px */
  --space-3: 0.75rem;    /* 12px */
  --space-4: 1rem;       /* 16px */
  --space-5: 1.25rem;    /* 20px */
  --space-6: 1.5rem;     /* 24px */
  --space-8: 2rem;       /* 32px */
  --space-10: 2.5rem;    /* 40px */
  --space-12: 3rem;      /* 48px */
  --space-16: 4rem;      /* 64px */
  --space-20: 5rem;      /* 80px */
  --space-24: 6rem;      /* 96px */
  
  /* Layout */
  --container-max: 1200px;
  --container-padding: var(--space-6);
  
  /* Borders */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.2s ease;
  --transition-slow: 0.3s ease;
  
  /* Z-index scale */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
}

/* Dark Mode Variables */
[data-theme="dark"] {
  --color-bg: #0F0F0F;
  --color-bg-elevated: #1A1A1A;
  --color-text: #E5E5E5;
  --color-text-heading: #FFFFFF;
  --color-primary: #FF3333;
  --color-border: #333333;
}

/* Light Mode (default) */
:root,
[data-theme="light"] {
  --color-bg: var(--color-white);
  --color-bg-elevated: var(--color-off-white);
  --color-text: var(--color-dark-gray);
  --color-text-heading: var(--color-black);
}

/* ==========================================================================
   1a. Font Faces
   ========================================================================== */

@font-face {
  font-family: 'Inter';
  src: url('/assets/fonts/inter/Inter-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Inter';
  src: url('/assets/fonts/inter/Inter-Medium.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Inter';
  src: url('/assets/fonts/inter/Inter-SemiBold.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'IBM Plex Sans';
  src: url('/assets/fonts/ibm-plex-sans/IBMPlexSans-Medium.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'IBM Plex Sans';
  src: url('/assets/fonts/ibm-plex-sans/IBMPlexSans-SemiBold.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

/* ==========================================================================
   2. CSS Reset
   ========================================================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  letter-spacing: 0.01em;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

input,
button,
textarea,
select {
  font: inherit;
}

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

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

ul,
ol {
  list-style: none;
}

/* ==========================================================================
   3. Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-text-heading);
  letter-spacing: -0.01em;
}

h1 {
  font-size: var(--text-5xl);
  letter-spacing: -0.015em;
}

h2 {
  font-size: var(--text-4xl);
  letter-spacing: -0.012em;
}

h3 {
  font-size: var(--text-3xl);
  letter-spacing: -0.01em;
}

h4 {
  font-size: var(--text-2xl);
}

h5 {
  font-size: var(--text-xl);
  font-weight: 600;
}

h6 {
  font-size: var(--text-base);
  font-weight: 600;
}

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

p:last-child {
  margin-bottom: 0;
}

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

.text-lg {
  font-size: var(--text-lg);
}

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

.eyebrow {
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-dark-gray);
}

.eyebrow-light {
  color: rgba(255, 255, 255, 0.9);
}

/* ==========================================================================
   4. Layout Utilities
   ========================================================================== */

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

.section {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

.section-sm {
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
}

.section-lg {
  padding-top: var(--space-20);
  padding-bottom: var(--space-20);
}

.section-muted {
  background-color: var(--color-off-white);
}

.section-cta-inline {
  text-align: center;
  margin-top: var(--space-10);
}

/* Flexbox utilities */
.flex {
  display: flex;
}

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

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

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-2 {
  gap: var(--space-2);
}

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

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

.gap-8 {
  gap: var(--space-8);
}

/* Grid utilities */
.grid {
  display: grid;
}

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

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

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

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

/* ==========================================================================
   5. Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 700;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
}

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

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(45, 168, 132, 0.3);
}

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

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

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

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

.btn-light {
  background-color: var(--color-white);
  color: var(--color-primary);
  border: 1px solid var(--color-white);
}

.btn-light:hover {
  background-color: rgba(255, 255, 255, 0.92);
}

.btn-ghost-light {
  background-color: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.btn-ghost-light:hover {
  border-color: var(--color-white);
}

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

.btn-lg {
  padding: var(--space-5) var(--space-10);
  font-size: var(--text-lg);
}

/* ==========================================================================
   6. Cards
   ========================================================================== */

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

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

.card-image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.card-title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
}

.card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-dark-gray);
  margin-bottom: var(--space-4);
}

.card-meta svg {
  width: 16px;
  height: 16px;
}

/* ==========================================================================
   7. Tags / Badges
   ========================================================================== */

.tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-sm);
  background-color: var(--color-light-gray);
  color: var(--color-dark-gray);
}

.tag-primary {
  background-color: rgba(45, 168, 132, 0.1);
  color: var(--color-primary-dark);
}

/* ==========================================================================
   8. Forms
   ========================================================================== */

.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: 600;
  font-size: var(--text-sm);
}

.form-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-bg);
  color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(45, 168, 132, 0.1);
}

.form-input::placeholder {
  color: var(--color-border);
}

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

.announcement-bar {
  position: sticky;
  top: 0;
  z-index: var(--z-fixed);
  padding: var(--space-2) var(--space-4);
  background-color: var(--color-primary);
  color: var(--color-white);
}

.announcement-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  text-align: center;
  font-weight: 600;
}

.announcement-text {
  font-size: var(--text-sm);
}

.announcement-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-full);
  color: var(--color-white);
  font-weight: 700;
  font-size: var(--text-sm);
}

.announcement-cta:hover {
  border-color: var(--color-white);
  color: var(--color-white);
}

.announcement-success { background-color: var(--color-success); }
.announcement-warning { background-color: var(--color-warning); }
.announcement-error { background-color: var(--color-error); }
.announcement-info { background-color: var(--color-primary); }

.announcement-bar .container {
  max-width: var(--container-max);
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text-heading);
}

.logo-img {
  height: 55px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
}

.footer-logo-img {
  filter: brightness(0) invert(1);
  height: 35px;
}

.logo:hover {
  color: var(--color-text-heading);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-link {
  font-weight: 500;
  color: var(--color-text);
  transition: color var(--transition-fast);
  letter-spacing: 0.01em;
}

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

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

/* Mobile menu */
.mobile-menu-toggle {
  display: none;
  padding: var(--space-2);
  background: none;
  border: none;
  cursor: pointer;
}

.mobile-menu {
  display: none;
}

/* ==========================================================================
   10. Footer
   ========================================================================== */

.footer {
  background-color: var(--color-black);
  color: var(--color-white);
  padding-top: var(--space-16);
  padding-bottom: var(--space-8);
}

.footer a {
  color: rgba(255, 255, 255, 0.7);
}

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

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer-brand {
  max-width: 280px;
}

.footer-brand p {
  margin-top: var(--space-4);
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--text-sm);
  line-height: 1.7;
}

.footer-heading {
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-4);
  color: var(--color-white);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links a {
  font-size: var(--text-sm);
}

.social-links {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background-color: rgba(255, 255, 255, 0.1);
  transition: background-color var(--transition-fast);
}

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

.social-links svg {
  width: 20px;
  height: 20px;
}

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.5);
}

/* ==========================================================================
   11. Hero Section
   ========================================================================== */

.hero {
  padding-top: var(--space-20);
  padding-bottom: var(--space-20);
}

.hero-premium {
  background: radial-gradient(circle at 20% 20%, rgba(236, 0, 0, 0.06), transparent 35%), radial-gradient(circle at 80% 0%, rgba(211, 0, 0, 0.06), transparent 25%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 2fr 1.1fr;
  gap: var(--space-12);
  align-items: stretch;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.hero-title {
  max-width: 720px;
}

.hero-subtitle {
  max-width: 640px;
  font-size: var(--text-lg);
  color: var(--color-dark-gray);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-dark-gray);
}

.hero-variant-notes {
  font-size: var(--text-sm);
  color: var(--color-border);
}

.hero-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-6);
}

.hero-card-header {
  font-weight: 700;
  letter-spacing: 0.01em;
}

.hero-card-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.hero-card-list li {
  display: flex;
  gap: var(--space-2);
  align-items: baseline;
  color: var(--color-dark-gray);
}

.hero-card-footer {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  background: var(--color-off-white);
  color: var(--color-dark-gray);
  font-size: var(--text-sm);
  border: 1px solid var(--color-border);
}

/* ==========================================================================
   12. Section Headers
   ========================================================================== */

.section-header {
  text-align: center;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--space-12);
}

.section-header h2 {
  margin-bottom: var(--space-4);
}

.section-header p {
  color: var(--color-dark-gray);
  font-size: var(--text-lg);
}

/* ==========================================================================
   13. Proof Strip
   ========================================================================== */

.proof-strip {
  padding: var(--space-10) 0;
  background: var(--color-off-white);
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-6);
}

.proof-item {
  padding: var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.proof-label {
  font-size: var(--text-sm);
  color: var(--color-dark-gray);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-2);
}

.proof-value {
  font-weight: 700;
  font-size: var(--text-xl);
  margin-bottom: var(--space-1);
}

.proof-note {
  color: var(--color-dark-gray);
  font-size: var(--text-sm);
}

/* ==========================================================================
   14. Course Grid
   ========================================================================== */

.course-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.tag-row {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.tag + .tag {
  margin-left: 0;
}

.course-fit {
  color: var(--color-dark-gray);
  margin-top: var(--space-2);
  margin-bottom: var(--space-4);
}

.course-card {
  display: flex;
  flex-direction: column;
}

.course-card .card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.course-card .card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: var(--space-4);
}

.course-price {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text-heading);
}

/* ==========================================================================
   15. Testimonials Carousel
   ========================================================================== */

.testimonials-section {
  overflow: hidden;
}

/* Carousel Container */
.testimonial-carousel {
  position: relative;
  margin-bottom: var(--space-6);
}

/* Carousel Controls */
.testimonial-carousel-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.carousel-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-dark-gray);
  cursor: pointer;
  transition: all var(--transition-base);
}

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

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

.carousel-btn svg {
  width: 20px;
  height: 20px;
}

/* Play/Pause Button */
.carousel-play-pause .icon-play {
  display: none;
}

.carousel-play-pause[data-playing="false"] .icon-pause {
  display: none;
}

.carousel-play-pause[data-playing="false"] .icon-play {
  display: block;
}

/* Track Wrapper */
.testimonial-carousel-track-wrapper {
  overflow: hidden;
  margin: 0 calc(-1 * var(--space-3));
  padding: 0 var(--space-3);
}

/* Carousel Track */
.testimonial-carousel-track {
  display: flex;
  gap: var(--space-6);
  transition: transform 0.5s ease-in-out;
}

/* Testimonial Cards in Carousel */
.testimonial-carousel .testimonial-card {
  flex: 0 0 100%;
  min-width: 0;
  display: flex;
  flex-direction: column;
  padding: var(--space-6);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  margin: 0;
  box-sizing: border-box;
}

@media (min-width: 640px) {
  .testimonial-carousel .testimonial-card {
    flex: 0 0 calc(50% - var(--space-3));
  }
}

@media (min-width: 1024px) {
  .testimonial-carousel .testimonial-card {
    flex: 0 0 calc(33.333% - var(--space-4));
  }
}

/* Carousel Dots */
.carousel-dots {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.carousel-dot {
  width: 10px;
  height: 10px;
  padding: 0;
  background-color: var(--color-border);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
}

.carousel-dot:hover {
  background-color: var(--color-dark-gray);
}

.carousel-dot.active {
  background-color: var(--color-primary);
  width: 24px;
}

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

/* Card Internal Styles */
.testimonial-rating {
  display: flex;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
  color: var(--color-warning);
}

.testimonial-rating svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.testimonial-quote {
  flex: 1;
  display: flex;
  flex-direction: column;
  margin: 0;
  padding: 0;
  border: none;
}

.testimonial-content {
  font-size: var(--text-base);
  line-height: 1.7;
  margin-bottom: var(--space-3);
  color: var(--color-text);
  
  /* Line clamp for collapsed state */
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.testimonial-card.expanded .testimonial-content {
  -webkit-line-clamp: unset;
  display: block;
}

.testimonial-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0;
  margin-bottom: var(--space-4);
  background: none;
  border: none;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  transition: color var(--transition-fast);
  align-self: flex-start;
}

.testimonial-toggle:hover {
  color: var(--color-primary-dark);
}

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

.testimonial-toggle svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-base);
}

.testimonial-card.expanded .testimonial-toggle svg {
  transform: rotate(180deg);
}

.testimonial-result {
  font-size: var(--text-sm);
  color: var(--color-primary-dark);
  background-color: rgba(236, 0, 0, 0.06);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-4);
  border-left: 3px solid var(--color-primary);
}

.testimonial-result strong {
  font-weight: 600;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.testimonial-avatar {
  position: relative;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.testimonial-avatar::after {
  content: attr(data-initials);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.testimonial-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-full);
}

.testimonial-name {
  display: block;
  font-weight: 600;
  font-style: normal;
  color: var(--color-text-heading);
  margin-bottom: var(--space-1);
}

.testimonial-title {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-dark-gray);
}

/* Testimonials Footer */
.testimonials-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--space-6);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

@media (min-width: 640px) {
  .testimonials-footer {
    flex-direction: row;
    justify-content: center;
    gap: var(--space-8);
  }
}

.testimonials-summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--text-lg);
  color: var(--color-text);
  margin: 0;
}

.testimonials-rating {
  font-weight: 600;
  color: var(--color-text-heading);
}

.testimonials-divider {
  color: var(--color-dark-gray);
}

.testimonials-count {
  color: var(--color-dark-gray);
}

/* Legacy grid fallback - keep for non-carousel pages if needed */
.testimonial-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .testimonial-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

/* ==========================================================================
   16. YouTube Micro Section
   ========================================================================== */

.youtube-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-6);
}

.youtube-card {
  display: block;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.youtube-thumb img {
  display: block;
  width: 100%;
  height: auto;
}

.youtube-meta {
  padding: var(--space-5);
  display: flex;
  gap: var(--space-3);
  align-items: center;
}

.youtube-meta p {
  margin: 0;
}

.youtube-cta {
  display: flex;
  justify-content: center;
  margin-top: var(--space-2);
}

/* ==========================================================================
   CTA Band
   ========================================================================== */

.section-cta {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-white);
}

.cta-band {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-10);
  align-items: center;
}

.cta-band h2 {
  margin-bottom: var(--space-3);
}

.cta-subtext {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--text-lg);
  max-width: 620px;
}

.cta-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  align-items: flex-start;
}

/* ==========================================================================
   Responsive Tweaks
   ========================================================================== */

@media (max-width: 1024px) {
  .hero-grid,
  .cta-band {
    grid-template-columns: 1fr;
  }

  .hero-card,
  .cta-actions {
    width: 100%;
  }
}

@media (max-width: 768px) {
  .hero {
    padding-top: var(--space-16);
    padding-bottom: var(--space-16);
  }

  .hero-cta {
    flex-direction: column;
    align-items: flex-start;
  }

  .proof-grid,
  .learning-grid,
  .youtube-grid,
  .testimonial-grid,
  .course-grid {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  }
}

/* ==========================================================================
   16. FAQ Accordion
   ========================================================================== */

.faq-list {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

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

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) 0;
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 600;
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-heading);
}

.faq-question:hover {
  color: var(--color-primary);
}

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

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  display: none;
  padding-bottom: var(--space-5);
  color: var(--color-text);
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  display: block;
}

/* ==========================================================================
   17. Feature Cards
   ========================================================================== */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.feature-card {
  text-align: center;
  padding: var(--space-8);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  margin-bottom: var(--space-4);
  border-radius: var(--radius-lg);
  background-color: rgba(45, 168, 132, 0.1);
  color: var(--color-primary);
}

.feature-icon svg {
  width: 32px;
  height: 32px;
}

.feature-title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
}

.feature-description {
  color: var(--color-dark-gray);
  font-size: var(--text-sm);
}

.learning-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-6);
}

.learning-card {
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.learning-card h3 {
  margin-bottom: var(--space-3);
}

.learning-card p {
  color: var(--color-dark-gray);
}

/* ==========================================================================
   18. Instructor Section
   ========================================================================== */

.instructor-section {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-12);
  align-items: center;
}

.instructor-image {
  width: 280px;
  height: 280px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-light-gray);
}

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

.instructor-name {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-2);
}

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

.instructor-bio {
  color: var(--color-dark-gray);
  margin-bottom: var(--space-6);
}

.instructor-credentials {
  display: flex;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.instructor-actions {
  margin-top: var(--space-6);
}

.credential {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-dark-gray);
}

.credential svg {
  width: 16px;
  height: 16px;
  color: var(--color-primary);
}

/* ==========================================================================
   19. Responsive Styles
   ========================================================================== */

/* Tablet */
@media (max-width: 1024px) {
  :root {
    --text-5xl: 2.5rem;
    --text-4xl: 2rem;
    --text-3xl: 1.75rem;
  }
  
  .nav {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
  
  .course-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .instructor-section {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .instructor-image {
    margin: 0 auto;
  }
}

/* Mobile */
@media (max-width: 768px) {
  :root {
    --text-5xl: 2.25rem;
    --text-4xl: 1.875rem;
    --text-3xl: 1.5rem;
    --container-padding: var(--space-4);
  }
  
  .section {
    padding-top: var(--space-12);
    padding-bottom: var(--space-12);
  }
  
  .hero {
    padding-top: var(--space-12);
    padding-bottom: var(--space-12);
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-cta .btn {
    width: 100%;
    max-width: 300px;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: var(--space-4);
  }
  
  .course-grid {
    grid-template-columns: 1fr;
  }
  
  .feature-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  
  .trust-logos {
    gap: var(--space-8);
  }
}

/* ==========================================================================
   20. Utility Classes
   ========================================================================== */

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

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  padding: var(--space-2) var(--space-4);
  background-color: var(--color-primary);
  color: var(--color-white);
  z-index: 1000;
}

.skip-link:focus {
  top: 0;
}

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

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

/* ==========================================================================
   21. About Page Styles
   ========================================================================== */

.hero--small {
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
  background-color: var(--color-off-white);
}

.hero__content--centered {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.hero__title {
  margin-bottom: var(--space-4);
}

.hero__subtitle {
  color: var(--color-dark-gray);
  font-size: var(--text-lg);
}

.section--alt {
  background-color: var(--color-off-white);
}

.section__header {
  margin-bottom: var(--space-12);
}

.section__header--centered {
  text-align: center;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.section__label {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.section__title {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-4);
}

.section__subtitle {
  color: var(--color-dark-gray);
  font-size: var(--text-lg);
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
}

.about-text {
  font-size: var(--text-lg);
  line-height: 1.8;
  margin-bottom: var(--space-6);
}

.mission-values {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-10);
}

.value-item {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-6);
  background-color: var(--color-off-white);
  border-radius: var(--radius-lg);
}

.value-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background-color: rgba(45, 168, 132, 0.1);
  color: var(--color-primary);
}

.value-content h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}

.value-content p {
  font-size: var(--text-sm);
  color: var(--color-dark-gray);
}

/* Instructor About Section */
.instructor-about {
  display: grid;
  grid-template-columns: 400px 1fr;
  gap: var(--space-12);
  align-items: start;
}

.instructor-about__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-light-gray);
}

.instructor-about__image img {
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  object-fit: cover;
}

.instructor-about__title {
  font-size: var(--text-lg);
  color: var(--color-primary);
  margin-bottom: var(--space-6);
}

.instructor-about__bio {
  margin-bottom: var(--space-6);
}

.instructor-about__bio p {
  font-size: var(--text-base);
  line-height: 1.8;
  margin-bottom: var(--space-4);
}

.instructor-about__credentials h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-4);
}

.credentials-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.credentials-list li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-base);
  color: var(--color-text);
}

.credentials-list svg {
  flex-shrink: 0;
  color: var(--color-primary);
}

.instructor-about__social {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background-color: var(--color-light-gray);
  color: var(--color-dark-gray);
  transition: all var(--transition-base);
}

.social-link:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.feature-card {
  padding: var(--space-8);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.feature-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  margin-bottom: var(--space-4);
  border-radius: var(--radius-lg);
  background-color: rgba(45, 168, 132, 0.1);
  color: var(--color-primary);
}

.feature-card__title {
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
}

.feature-card__text {
  font-size: var(--text-sm);
  color: var(--color-dark-gray);
  line-height: 1.7;
}

/* CTA Section */
.section--cta {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
}

.cta-box {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.cta-box__title {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-4);
  color: var(--color-white);
}

.cta-box__text {
  font-size: var(--text-lg);
  margin-bottom: var(--space-8);
  opacity: 0.9;
}

/* ==========================================================================
   22. Contact Page Styles
   ========================================================================== */

.contact-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--space-12);
}

.contact-form-wrapper {
  padding: var(--space-8);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.contact-form__title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-6);
}

.contact-form .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.contact-form .form-group {
  margin-bottom: var(--space-5);
}

.contact-form .form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-text-heading);
}

.contact-form .required {
  color: var(--color-error);
}

.contact-form .form-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-bg);
  color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.contact-form .form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(45, 168, 132, 0.1);
}

.contact-form .form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23292929' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  background-size: 16px;
  padding-right: var(--space-10);
  cursor: pointer;
}

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

.btn--full {
  width: 100%;
}

/* Contact Info Cards */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.contact-info__card {
  padding: var(--space-6);
  background-color: var(--color-off-white);
  border-radius: var(--radius-lg);
}

.contact-info__title {
  font-size: var(--text-lg);
  margin-bottom: var(--space-5);
}

.contact-method {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.contact-method:last-of-type {
  margin-bottom: 0;
}

.contact-method__icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background-color: rgba(45, 168, 132, 0.1);
  color: var(--color-primary);
}

.contact-method__content h4 {
  font-size: var(--text-base);
  margin-bottom: var(--space-1);
}

.contact-method__content a {
  font-size: var(--text-sm);
}

.contact-method__note {
  font-size: var(--text-xs);
  color: var(--color-dark-gray);
  margin-top: var(--space-1);
}

.contact-info__card--faq {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
}

.quick-faq {
  margin-bottom: var(--space-4);
}

.quick-faq li {
  margin-bottom: var(--space-4);
}

.quick-faq li:last-child {
  margin-bottom: 0;
}

.quick-faq strong {
  display: block;
  font-size: var(--text-sm);
  margin-bottom: var(--space-1);
}

.quick-faq p {
  font-size: var(--text-sm);
  color: var(--color-dark-gray);
}

/* Social Links Grid */
.social-links-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.social-link-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-8);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition-base);
  color: var(--color-dark-gray);
}

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

.social-link-card svg {
  margin-bottom: var(--space-4);
  transition: color var(--transition-base);
}

.social-link-card span {
  font-weight: 600;
  font-size: var(--text-lg);
  color: var(--color-text-heading);
  margin-bottom: var(--space-1);
}

.social-link-card p {
  font-size: var(--text-sm);
}

/* ==========================================================================
   23. Legal Pages Styles
   ========================================================================== */

.legal-page {
  padding-top: var(--space-12);
  padding-bottom: var(--space-16);
}

.container--narrow {
  max-width: 800px;
}

.legal-title {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-2);
}

.legal-updated {
  font-size: var(--text-sm);
  color: var(--color-dark-gray);
  margin-bottom: var(--space-10);
}

.legal-content h2 {
  font-size: var(--text-2xl);
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
}

.legal-content h3 {
  font-size: var(--text-xl);
  margin-top: var(--space-6);
  margin-bottom: var(--space-3);
}

.legal-content p {
  margin-bottom: var(--space-4);
  line-height: 1.8;
}

.legal-content ul {
  margin-bottom: var(--space-4);
  padding-left: var(--space-6);
}

.legal-content li {
  position: relative;
  margin-bottom: var(--space-2);
  padding-left: var(--space-2);
  list-style: disc;
  line-height: 1.7;
}

.legal-content a {
  color: var(--color-primary);
  text-decoration: underline;
}

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

/* ==========================================================================
   24. 404 Error Page Styles
   ========================================================================== */

.error-page {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-12);
}

.error-content {
  max-width: 500px;
}

.error-code {
  font-family: var(--font-heading);
  font-size: 8rem;
  font-weight: 700;
  line-height: 1;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.error-title {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-4);
}

.error-message {
  font-size: var(--text-lg);
  color: var(--color-dark-gray);
  margin-bottom: var(--space-8);
}

.error-suggestions {
  margin-bottom: var(--space-8);
}

.error-suggestions p {
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.error-suggestions ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
}

.error-suggestions a {
  color: var(--color-primary);
  text-decoration: underline;
}

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

/* ==========================================================================
   25. Course Detail Page Styles
   ========================================================================== */

.course-detail {
  padding-top: var(--space-12);
  padding-bottom: var(--space-16);
}

.course-detail__header {
  margin-bottom: var(--space-12);
}

.course-detail__grid {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: var(--space-12);
  align-items: start;
}

.course-detail__content {
  max-width: 100%;
}

.course-detail__category {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background-color: rgba(45, 168, 132, 0.1);
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-4);
}

.course-detail__title {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-4);
}

.course-detail__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  margin-bottom: var(--space-6);
}

.course-detail__meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-dark-gray);
}

.course-detail__meta-item svg {
  width: 18px;
  height: 18px;
  color: var(--color-primary);
}

.course-detail__description {
  font-size: var(--text-lg);
  line-height: 1.8;
  color: var(--color-dark-gray);
}

/* Course Sidebar */
.course-sidebar {
  position: sticky;
  top: calc(72px + var(--space-6));
}

.course-sidebar__card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.course-sidebar__image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.course-sidebar__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.course-sidebar__body {
  padding: var(--space-6);
}

.course-sidebar__price {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text-heading);
  margin-bottom: var(--space-4);
}

.course-sidebar__features {
  margin-bottom: var(--space-6);
}

.course-sidebar__feature {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
  font-size: var(--text-sm);
}

.course-sidebar__feature:last-child {
  border-bottom: none;
}

.course-sidebar__feature svg {
  width: 18px;
  height: 18px;
  color: var(--color-primary);
}

/* Course Sections */
.course-section {
  margin-bottom: var(--space-12);
}

.course-section__title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-6);
}

/* Course Curriculum */
.curriculum-list {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

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

.curriculum-module:last-child {
  border-bottom: none;
}

.curriculum-module__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4) var(--space-5);
  background-color: var(--color-off-white);
  font-weight: 600;
  cursor: pointer;
}

.curriculum-module__header:hover {
  background-color: var(--color-light-gray);
}

.curriculum-module__info {
  font-size: var(--text-sm);
  color: var(--color-dark-gray);
  font-weight: 400;
}

.curriculum-lessons {
  padding: var(--space-2) 0;
}

.curriculum-lesson {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-dark-gray);
}

.curriculum-lesson svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* Course Requirements */
.requirements-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.requirements-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-base);
  line-height: 1.7;
}

.requirements-list svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  margin-top: 2px;
}

/* Course Instructor Card */
.instructor-card {
  display: flex;
  gap: var(--space-6);
  padding: var(--space-6);
  background-color: var(--color-off-white);
  border-radius: var(--radius-lg);
}

.instructor-card__image {
  flex-shrink: 0;
  width: 120px;
  height: 120px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-light-gray);
}

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

.instructor-card__name {
  font-size: var(--text-xl);
  margin-bottom: var(--space-1);
}

.instructor-card__title {
  font-size: var(--text-sm);
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.instructor-card__bio {
  font-size: var(--text-sm);
  color: var(--color-dark-gray);
  line-height: 1.7;
}

/* ==========================================================================
   26. Additional Responsive Styles
   ========================================================================== */

@media (max-width: 1024px) {
  .instructor-about {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .instructor-about__image {
    max-width: 300px;
    margin: 0 auto;
  }
  
  .credentials-list {
    align-items: center;
  }
  
  .instructor-about__social {
    justify-content: center;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .social-links-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .course-detail__grid {
    grid-template-columns: 1fr;
  }
  
  .course-sidebar {
    position: static;
  }
}

@media (max-width: 768px) {
  .mission-values {
    grid-template-columns: 1fr;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-form .form-row {
    grid-template-columns: 1fr;
  }
  
  .social-links-grid {
    grid-template-columns: 1fr;
  }
  
  .instructor-card {
    flex-direction: column;
    text-align: center;
  }
  
  .instructor-card__image {
    margin: 0 auto;
  }
  
  .error-code {
    font-size: 5rem;
  }
}