/* ============================================
   Good4Earth E-Learning Platform
   Design System & Styles
   ============================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Brand Colors */
  --g4e-green-900: #1B5E20;
  --g4e-green-700: #2E7D32;
  --g4e-green-500: #5BA469;
  --g4e-green-400: #81C784;
  --g4e-green-300: #A5D6A7;
  --g4e-green-100: #C8E6C9;
  --g4e-green-50: #E8F5E9;

  --g4e-blue-700: #0277BD;
  --g4e-blue-500: #0398E0;
  --g4e-blue-300: #4FC3F7;
  --g4e-blue-100: #B3E5FC;

  --g4e-earth-900: #5D4037;
  --g4e-earth-700: #8D6E63;
  --g4e-earth-500: #A1887F;
  --g4e-earth-300: #D7CCC8;
  --g4e-earth-200: #E8DDD2;
  --g4e-earth-100: #F0E8DB;
  --g4e-earth-50: #FAF6F0;

  /* Neutral Colors */
  --g4e-gray-900: #1A1A2E;
  --g4e-gray-800: #222236;
  --g4e-gray-700: #333355;
  --g4e-gray-600: #555577;
  --g4e-gray-500: #777799;
  --g4e-gray-400: #9999AA;
  --g4e-gray-300: #BBBBCC;
  --g4e-gray-200: #DDDDEE;
  --g4e-gray-100: #EEEEF5;
  --g4e-gray-50: #F8F8FC;

  /* Semantic */
  --color-bg-primary: #FFFFFF;
  --color-bg-secondary: var(--g4e-gray-50);
  --color-bg-tertiary: var(--g4e-earth-50);
  --color-bg-hero: linear-gradient(135deg, var(--g4e-gray-900) 0%, #0d2818 50%, var(--g4e-green-900) 100%);
  --color-bg-glass: rgba(255, 255, 255, 0.08);
  --color-bg-glass-border: rgba(255, 255, 255, 0.12);
  --color-bg-card: #FFFFFF;

  --color-text-primary: var(--g4e-gray-900);
  --color-text-secondary: var(--g4e-gray-600);
  --color-text-muted: var(--g4e-gray-400);
  --color-text-inverse: #FFFFFF;
  --color-text-brand: var(--g4e-green-500);

  --color-accent: var(--g4e-green-500);
  --color-accent-hover: var(--g4e-green-700);
  --color-accent-alt: var(--g4e-blue-700);

  --color-border: var(--g4e-gray-200);
  --color-border-light: var(--g4e-gray-100);

  /* Gradients */
  --gradient-brand: linear-gradient(135deg, var(--g4e-green-700) 0%, var(--g4e-green-500) 50%, var(--g4e-blue-500) 100%);
  --gradient-hero-text: linear-gradient(135deg, var(--g4e-green-300) 0%, var(--g4e-green-400) 50%, var(--g4e-blue-300) 100%);
  --gradient-card-green: linear-gradient(145deg, var(--g4e-green-900) 0%, #285535 100%);
  --gradient-card-earth: linear-gradient(145deg, var(--g4e-earth-200) 0%, var(--g4e-earth-100) 100%);
  --gradient-card-blue: linear-gradient(145deg, var(--g4e-blue-700) 0%, #035E8F 100%);

  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --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;
  --text-6xl: 3.75rem;
  --text-7xl: 4.5rem;

  /* Spacing */
  --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;
  --space-32: 8rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.04);
  --shadow-glow: 0 0 40px rgba(91,164,105,0.15);
  --shadow-card: 0 1px 3px rgba(0,0,0,0.06), 0 6px 16px rgba(0,0,0,0.06);
  --shadow-card-hover: 0 6px 24px rgba(0,0,0,0.12), 0 2px 8px rgba(0,0,0,0.06);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Layout */
  --container-max: 1280px;
  --container-narrow: 960px;
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: var(--header-height);
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-primary);
}

ul, ol {
  list-style: none;
}

/* ---------- Utility ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container--narrow {
  max-width: var(--container-narrow);
}

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

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge--green {
  background: var(--g4e-green-50);
  color: var(--g4e-green-700);
}

.badge--blue {
  background: var(--g4e-blue-100);
  color: var(--g4e-blue-700);
}

.badge--earth {
  background: var(--g4e-earth-100);
  color: var(--g4e-earth-900);
}

.badge--white {
  background: rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.9);
  backdrop-filter: blur(4px);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-lg);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.5;
  transition: all var(--transition-base);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, transparent, rgba(255,255,255,0.1), transparent);
  transform: translateX(-100%);
  transition: transform 0.5s ease;
}

.btn:hover::after {
  transform: translateX(100%);
}

.btn--primary {
  background: var(--gradient-brand);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(46,125,50,0.3);
}

.btn--primary:hover {
  box-shadow: 0 6px 20px rgba(46,125,50,0.45);
  transform: translateY(-2px);
}

.btn--secondary {
  background: transparent;
  color: var(--color-text-primary);
  border: 1.5px solid var(--color-border);
}

.btn--secondary:hover {
  border-color: var(--g4e-green-500);
  color: var(--g4e-green-700);
  background: var(--g4e-green-50);
}

.btn--ghost {
  background: rgba(255,255,255,0.08);
  color: #FFFFFF;
  border: 1.5px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(8px);
}

.btn--ghost:hover {
  background: rgba(255,255,255,0.16);
  border-color: rgba(255,255,255,0.3);
}

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

.btn--icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-md);
}

.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  transition: all var(--transition-base);
}

.site-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--color-border-light);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.site-header.scrolled::before {
  opacity: 1;
}

.site-header.at-top::before {
  opacity: 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  position: relative;
  z-index: 1;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}

.header-logo img {
  width: 44px;
  height: auto;
  transition: transform var(--transition-spring);
}

.header-logo:hover img {
  transform: rotate(-8deg) scale(1.05);
}

.header-logo-text {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  transition: color var(--transition-fast);
}

.at-top .header-logo-text {
  color: #FFFFFF;
}

.scrolled .header-logo-text {
  color: var(--g4e-green-700);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-link {
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  transition: all var(--transition-fast);
  position: relative;
}

.at-top .nav-link {
  color: rgba(255,255,255,0.8);
}

.at-top .nav-link:hover,
.at-top .nav-link.active {
  color: #FFFFFF;
  background: rgba(255,255,255,0.1);
}

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

.scrolled .nav-link:hover,
.scrolled .nav-link.active {
  color: var(--g4e-green-700);
  background: var(--g4e-green-50);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--g4e-green-500);
  border-radius: 1px;
}

.header-cta {
  margin-left: var(--space-4);
}

.at-top .header-cta .btn--primary {
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  backdrop-filter: blur(8px);
  box-shadow: none;
}

.at-top .header-cta .btn--primary:hover {
  background: rgba(255,255,255,0.25);
}

/* Mobile menu */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
}

.mobile-menu-btn span {
  display: block;
  height: 2px;
  border-radius: 2px;
  transition: all var(--transition-base);
}

.at-top .mobile-menu-btn span {
  background: #FFFFFF;
}

.scrolled .mobile-menu-btn span {
  background: var(--color-text-primary);
}

/* ---------- Hero Section ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--color-bg-hero);
  overflow: hidden;
  padding: var(--space-32) 0 var(--space-20);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 80%, rgba(91,164,105,0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(2,119,189,0.1) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(91,164,105,0.05) 0%, transparent 80%);
  pointer-events: none;
}

.hero-bg-image {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.15;
  filter: blur(1px);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.hero-text {
  max-width: 600px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: rgba(91,164,105,0.15);
  border: 1px solid rgba(91,164,105,0.3);
  border-radius: var(--radius-full);
  color: var(--g4e-green-300);
  font-size: var(--text-sm);
  font-weight: 500;
  margin-bottom: var(--space-8);
  backdrop-filter: blur(8px);
}

.hero-badge svg {
  width: 16px;
  height: 16px;
}

.hero h1 {
  font-size: var(--text-6xl);
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: var(--space-6);
  line-height: 1.1;
}

.hero h1 .gradient-text {
  background: var(--gradient-hero-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: rgba(255,255,255,0.65);
  line-height: 1.8;
  margin-bottom: var(--space-10);
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: var(--space-10);
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255,255,255,0.1);
}

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

.hero-stat-number {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1;
}

.hero-stat-label {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.5);
  margin-top: var(--space-1);
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hero-image-wrapper {
  position: relative;
  width: 100%;
  max-width: 520px;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: 0 40px 80px rgba(0,0,0,0.4);
}

.hero-image-wrapper img {
  width: 100%;
  border-radius: var(--radius-2xl);
}

.hero-image-wrapper::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-2xl);
  border: 1px solid rgba(255,255,255,0.1);
  pointer-events: none;
}

/* Floating cards on hero */
.hero-float-card {
  position: absolute;
  background: rgba(255,255,255,0.07);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-xl);
  padding: var(--space-4) var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: #FFFFFF;
  animation: float 6s ease-in-out infinite;
  z-index: 2;
}

.hero-float-card:nth-child(2) {
  animation-delay: -2s;
}

.hero-float-card:nth-child(3) {
  animation-delay: -4s;
}

.hero-float-card--top {
  top: 10%;
  right: -40px;
}

.hero-float-card--bottom {
  bottom: 15%;
  left: -30px;
}

.float-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.float-icon--green {
  background: rgba(91,164,105,0.3);
}

.float-icon--blue {
  background: rgba(2,119,189,0.3);
}

.float-text-main {
  font-weight: 600;
  font-size: var(--text-sm);
}

.float-text-sub {
  font-size: var(--text-xs);
  opacity: 0.6;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ---------- Section Styles ---------- */
.section {
  padding: var(--space-24) 0;
}

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

.section--earth {
  background: var(--color-bg-tertiary);
}

.section--dark {
  background: var(--g4e-gray-900);
  color: #FFFFFF;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--g4e-green-500);
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-4);
}

.section-eyebrow svg {
  width: 16px;
  height: 16px;
}

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

.section--dark .section-title {
  color: #FFFFFF;
}

.section-desc {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.section--dark .section-desc {
  color: rgba(255,255,255,0.6);
}

/* ---------- Course Cards ---------- */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.course-card {
  border-radius: var(--radius-2xl);
  overflow: hidden;
  transition: all var(--transition-slow);
  position: relative;
  display: flex;
  flex-direction: column;
}

.course-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-card-hover);
}

.course-card--green {
  background: var(--gradient-card-green);
  color: #FFFFFF;
}

.course-card--earth {
  background: var(--gradient-card-earth);
  color: var(--g4e-gray-900);
}

.course-card--blue {
  background: var(--gradient-card-blue);
  color: #FFFFFF;
}

.course-card-image {
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
}

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

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

.course-card-body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.course-card-title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-3);
  line-height: 1.3;
}

.course-card--earth .course-card-title {
  color: var(--g4e-gray-900);
}

.course-card-desc {
  font-size: var(--text-sm);
  line-height: 1.6;
  opacity: 0.8;
  margin-bottom: var(--space-6);
  flex: 1;
}

.course-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-4);
  border-top: 1px solid rgba(255,255,255,0.15);
  font-size: var(--text-xs);
  font-weight: 500;
}

.course-card--earth .course-card-meta {
  border-top-color: rgba(0,0,0,0.1);
}

.course-meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.course-meta-item svg {
  width: 14px;
  height: 14px;
  opacity: 0.7;
}

.course-card-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  font-weight: 600;
  transition: gap var(--transition-fast);
}

.course-card:hover .course-card-cta {
  gap: var(--space-3);
}

.course-card-cta svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.course-card:hover .course-card-cta svg {
  transform: translateX(4px);
}

/* ---------- About Section ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.about-image {
  border-radius: var(--radius-2xl);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-xl);
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 3/4;
}

.about-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(27,94,32,0.2) 0%, transparent 50%);
  pointer-events: none;
}

.about-content h2 {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-6);
}

.about-content .highlight {
  color: var(--g4e-green-500);
  font-style: italic;
  font-weight: 700;
}

.about-content p {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: 1.9;
  margin-bottom: var(--space-6);
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-top: var(--space-8);
}

.about-feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--g4e-green-50);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.about-feature:hover {
  background: var(--g4e-green-100);
  transform: translateY(-2px);
}

.about-feature-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--gradient-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: #FFFFFF;
}

.about-feature-icon svg {
  width: 18px;
  height: 18px;
}

.about-feature-text {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--g4e-green-900);
}

/* ---------- Learning Paths ---------- */
.paths-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.path-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.path-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-brand);
  transform: scaleX(0);
  transition: transform var(--transition-base);
  transform-origin: left;
}

.path-card:hover {
  border-color: var(--g4e-green-300);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  transform: translateY(-4px);
}

.path-card:hover::before {
  transform: scaleX(1);
}

.path-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-5);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-3xl);
  transition: transform var(--transition-spring);
}

.path-card:hover .path-icon {
  transform: scale(1.1) rotate(-5deg);
}

.path-icon--green {
  background: var(--g4e-green-50);
}

.path-icon--blue {
  background: var(--g4e-blue-100);
}

.path-icon--earth {
  background: var(--g4e-earth-100);
}

.path-icon--purple {
  background: #F3E5F5;
}

.path-card h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
}

.path-card p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.path-count {
  margin-top: var(--space-4);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--g4e-green-500);
}

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

.testimonial-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--transition-base);
}

.testimonial-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.15);
  transform: translateY(-4px);
}

.testimonial-stars {
  display: flex;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
  color: #FFD700;
}

.testimonial-stars svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.testimonial-text {
  font-size: var(--text-base);
  line-height: 1.8;
  color: rgba(255,255,255,0.75);
  margin-bottom: var(--space-6);
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--gradient-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--text-sm);
  color: #FFFFFF;
  flex-shrink: 0;
}

.testimonial-name {
  font-weight: 600;
  font-size: var(--text-sm);
  color: #FFFFFF;
}

.testimonial-role {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.5);
}

/* ---------- Industry Insights ---------- */
.insights-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.insight-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-base);
}

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

.insight-image {
  width: 100%;
  aspect-ratio: 16/10;
  background: var(--g4e-green-100);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  position: relative;
}

.insight-image::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40%;
  background: linear-gradient(to top, rgba(0,0,0,0.05), transparent);
}

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

.insight-category {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--g4e-green-500);
  margin-bottom: var(--space-3);
}

.insight-title {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-3);
  line-height: 1.4;
}

.insight-excerpt {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-4);
}

.insight-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--g4e-green-700);
  transition: all var(--transition-fast);
}

.insight-link:hover {
  color: var(--g4e-green-500);
  gap: var(--space-3);
}

.insight-link svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

.insight-link:hover svg {
  transform: translateX(4px);
}

/* ---------- CTA Section ---------- */
.cta-section {
  padding: var(--space-24) 0;
  background: var(--gradient-brand);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 50%, rgba(255,255,255,0.1) 0%, transparent 50%),
    radial-gradient(circle at 70% 30%, rgba(255,255,255,0.05) 0%, transparent 50%);
}

.cta-inner {
  position: relative;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.cta-section h2 {
  font-size: var(--text-4xl);
  color: #FFFFFF;
  margin-bottom: var(--space-6);
}

.cta-section p {
  font-size: var(--text-lg);
  color: rgba(255,255,255,0.85);
  margin-bottom: var(--space-10);
  line-height: 1.8;
}

.cta-form {
  display: flex;
  gap: var(--space-3);
  max-width: 480px;
  margin: 0 auto;
}

.cta-input {
  flex: 1;
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-xl);
  border: 1.5px solid rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.12);
  color: #FFFFFF;
  font-size: var(--text-base);
  font-family: var(--font-body);
  backdrop-filter: blur(8px);
  transition: all var(--transition-fast);
}

.cta-input::placeholder {
  color: rgba(255,255,255,0.6);
}

.cta-input:focus {
  outline: none;
  border-color: rgba(255,255,255,0.6);
  background: rgba(255,255,255,0.18);
}

.cta-form .btn {
  background: #FFFFFF;
  color: var(--g4e-green-700);
  font-weight: 700;
  border-radius: var(--radius-xl);
}

.cta-form .btn:hover {
  background: var(--g4e-green-50);
  box-shadow: 0 4px 14px rgba(0,0,0,0.15);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--g4e-gray-900);
  color: rgba(255,255,255,0.7);
  padding: var(--space-20) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-16);
}

.footer-brand p {
  font-size: var(--text-sm);
  line-height: 1.8;
  margin-top: var(--space-4);
  max-width: 300px;
  color: rgba(255,255,255,0.5);
}

.footer-socials {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.footer-social {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  color: rgba(255,255,255,0.6);
}

.footer-social:hover {
  background: var(--g4e-green-500);
  border-color: var(--g4e-green-500);
  color: #FFFFFF;
  transform: translateY(-2px);
}

.footer-social svg {
  width: 16px;
  height: 16px;
}

.footer-col h4 {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 700;
  color: #FFFFFF;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-5);
}

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

.footer-col a {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.5);
  transition: all var(--transition-fast);
}

.footer-col a:hover {
  color: var(--g4e-green-400);
  padding-left: var(--space-2);
}

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.35);
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-6);
}

.footer-bottom-links a {
  color: rgba(255,255,255,0.35);
}

.footer-bottom-links a:hover {
  color: rgba(255,255,255,0.7);
}

/* ---------- Founder Story Section ---------- */
.story-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.founder-quote {
  position: relative;
  padding-left: var(--space-6);
  border-left: 4px solid var(--g4e-blue-700);
}

.founder-quote p {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: 1.9;
  margin-bottom: var(--space-4);
  font-style: italic;
}

.founder-quote .highlight-blue {
  color: var(--g4e-blue-700);
  font-weight: 700;
  font-style: normal;
}

.quote-author {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--g4e-green-700);
  margin-top: var(--space-6);
  font-style: normal;
}

.story-image {
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.story-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 3/2;
}

/* ---------- Single Course Layout ---------- */
.courses-grid--single {
  grid-template-columns: 1fr;
  max-width: 480px;
  margin: 0 auto;
}

/* ---------- CTA Email Button ---------- */
.cta-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.btn--cta-white {
  background: #FFFFFF;
  color: var(--g4e-green-700);
  font-weight: 700;
  border-radius: var(--radius-xl);
  box-shadow: 0 4px 14px rgba(0,0,0,0.1);
}

.btn--cta-white:hover {
  background: var(--g4e-green-50);
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
  transform: translateY(-2px);
}

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

/* ---------- Simplified Footer ---------- */
.footer-simple {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-8);
}

.footer-logo-link {
  justify-content: center;
}

.footer-nav {
  display: flex;
  gap: var(--space-6);
  flex-wrap: wrap;
  justify-content: center;
}

.footer-nav a {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.5);
  transition: color var(--transition-fast);
}

.footer-nav a:hover {
  color: var(--g4e-green-400);
}

.footer-bottom-simple {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex-wrap: wrap;
  justify-content: center;
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255,255,255,0.08);
  width: 100%;
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.35);
}

.footer-bottom-simple a {
  color: rgba(255,255,255,0.5);
  transition: color var(--transition-fast);
}

.footer-bottom-simple a:hover {
  color: var(--g4e-green-400);
}

/* ---------- Ambassadors (Team) Section ---------- */
.ambassadors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-12);
}

.ambassador-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  text-align: center;
  transition: transform var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-medium);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.ambassador-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--g4e-green-400);
}

.ambassador-image {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: var(--space-4);
  border: 3px solid var(--g4e-green-50);
  transition: border-color var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.ambassador-card:hover .ambassador-image {
  border-color: var(--g4e-green-500);
}

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

.ambassador-info h3 {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  color: var(--g4e-gray-900);
  margin-bottom: var(--space-1);
  font-weight: 700;
}

.ambassador-role {
  font-size: var(--text-xs);
  color: var(--g4e-green-600);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.team-footer {
  max-width: 800px;
  margin: var(--space-12) auto 0;
  text-align: center;
  font-size: var(--text-base);
  line-height: 1.8;
  color: var(--color-text-secondary);
}

/* ---------- Collaborations Section ---------- */
.collabs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-8);
  margin-top: var(--space-12);
}

.collab-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-medium);
  display: flex;
  flex-direction: column;
}

.collab-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: var(--g4e-green-400);
}

.collab-image {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--g4e-gray-100);
}

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

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

.collab-body {
  padding: var(--space-6);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.collab-category {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--g4e-green-500);
  margin-bottom: var(--space-2);
}

.collab-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--g4e-gray-900);
  margin-bottom: var(--space-3);
  line-height: 1.3;
}

.collab-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ---------- Credibility Section ---------- */
.credibility-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.credibility-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin-top: var(--space-4);
  line-height: 1.6;
}

.credibility-bullets {
  margin-top: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.credibility-bullets li {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
}

.bullet-icon {
  background: var(--g4e-green-100);
  color: var(--g4e-green-700);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: var(--text-sm);
  flex-shrink: 0;
  margin-top: 2px;
}

.credibility-bullets li span:not(.bullet-icon) {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: 1.5;
  font-weight: 500;
}

.credibility-badges {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.badge-card {
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-xl);
  padding: var(--space-4);
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.badge-card:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
  background: #FFFFFF;
}

.badge-card img {
  max-width: 100%;
  max-height: 80%;
  object-fit: contain;
  filter: grayscale(100%) opacity(0.85);
  transition: filter var(--transition-fast);
}

.badge-card:hover img {
  filter: grayscale(0%) opacity(1);
}

/* ---------- Scroll Animations ---------- */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-on-scroll.delay-1 { transition-delay: 0.1s; }
.animate-on-scroll.delay-2 { transition-delay: 0.2s; }
.animate-on-scroll.delay-3 { transition-delay: 0.3s; }
.animate-on-scroll.delay-4 { transition-delay: 0.4s; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  :root {
    --text-6xl: 3rem;
    --text-5xl: 2.5rem;
    --text-4xl: 2rem;
  }

  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-text {
    max-width: 100%;
  }

  .hero-subtitle {
    max-width: 100%;
  }

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

  .hero-visual {
    display: none;
  }

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

  .about-image {
    max-height: 400px;
  }

  .about-image img {
    aspect-ratio: 16/9;
  }

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

  .credibility-grid {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }
}

@media (max-width: 768px) {
  :root {
    --text-6xl: 2.5rem;
    --text-4xl: 1.75rem;
    --header-height: 64px;
    --space-24: 4rem;
    --space-16: 3rem;
  }

  .header-nav {
    display: none;
  }

  .header-cta {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .hero {
    min-height: auto;
    padding: calc(var(--header-height) + var(--space-16)) 0 var(--space-16);
  }

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

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

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

  .footer-bottom-simple {
    flex-direction: column;
    gap: var(--space-2);
  }

  .credibility-badges {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2);
  }

  .badge-card {
    padding: var(--space-2);
  }
}