/* ===================================
   AI Workshops Landing Page
   Modern Minimalist Design
   =================================== */

/* === CSS Variables === */
:root {
  /* Colors - Professional Blue Theme */
  --primary: #0066CC;
  --primary-dark: #0052A3;
  --primary-light: #E3F2FD;
  --secondary: #1E293B;
  --accent: #F59E0B;

  --background: #FFFFFF;
  --surface: #F9FAFB;
  --border: #E5E7EB;

  --text-primary: #1F2937;
  --text-secondary: #6B7280;
  --text-light: #9CA3AF;

  --success: #10B981;
  --error: #EF4444;

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  --spacing-4xl: 96px;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Transitions */
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

h1 { font-size: 56px; }
h2 { font-size: 42px; }
h3 { font-size: 28px; }
h4 { font-size: 24px; }
h5 { font-size: 20px; }
h6 { font-size: 18px; }

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

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

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

/* === Layout === */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

section {
  padding: var(--spacing-4xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-header h2 {
  margin-bottom: var(--spacing-md);
}

.section-header p {
  font-size: 20px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* === Navigation === */
.nav {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  padding: var(--spacing-md) 0;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  display: flex;
  align-items: center;
  font-weight: 700;
  font-size: 20px;
  color: var(--text-primary);
}

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

.nav-links a {
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}

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

.nav-login {
  padding: 10px 20px;
  background: var(--primary);
  color: white !important;
  border-radius: var(--radius-md);
  font-weight: 600;
}

.nav-login:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

/* === Hero Section === */
.hero {
  padding: var(--spacing-4xl) 0;
  background: linear-gradient(180deg, var(--surface) 0%, var(--background) 100%);
}

.hero-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.hero-header {
  text-align: center;
  max-width: 900px;
  margin: 0 auto var(--spacing-3xl);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 8px 16px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
}

.badge-icon {
  font-size: 18px;
}

.hero-title {
  font-size: 56px;
  line-height: 1.1;
  margin-bottom: var(--spacing-lg);
  color: var(--secondary);
}

.hero-subtitle {
  font-size: 20px;
  color: var(--text-secondary);
  margin-bottom: 0;
  line-height: 1.6;
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  margin-bottom: var(--spacing-3xl);
}

.hero-benefits {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.benefit {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
}

.benefit-icon {
  font-size: 24px;
  flex-shrink: 0;
}

.benefit strong {
  display: block;
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: 4px;
}

.benefit p {
  color: var(--text-secondary);
  font-size: 14px;
  margin: 0;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  align-items: center;
}

.hero-social-proof {
  padding-top: var(--spacing-md);
  margin-top: var(--spacing-md);
  border-top: 1px solid var(--border);
}

.stars {
  color: var(--accent);
  font-size: 18px;
  margin-bottom: 8px;
}

.hero-social-proof p {
  color: var(--text-secondary);
  font-size: 14px;
  margin: 0;
}

/* === Hero Video === */
.hero-video {
  position: relative;
}

.video-container {
  position: relative;
}

.video-wrapper {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
  height: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  background: var(--secondary);
}

.video-wrapper::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: var(--radius-lg);
  padding: 2px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  z-index: -1;
}

.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: var(--radius-lg);
}

.video-caption {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--surface);
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--text-secondary);
}

.video-duration {
  font-weight: 600;
  color: var(--primary);
}

/* === Buttons === */
.btn {
  display: inline-block;
  padding: 14px 28px;
  font-size: 16px;
  font-weight: 600;
  text-align: center;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-family: var(--font-family);
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: var(--shadow-md);
}

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

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

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

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

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

.btn-sm {
  padding: 10px 20px;
  font-size: 14px;
}

.btn-lg {
  padding: 18px 36px;
  font-size: 18px;
}

/* === Features === */
.features {
  background: var(--background);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.feature-card {
  text-align: center;
  padding: var(--spacing-xl);
}

.feature-icon {
  font-size: 48px;
  margin-bottom: var(--spacing-md);
}

.feature-card h3 {
  font-size: 20px;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  margin: 0;
}

/* === Workshops === */
.workshops {
  background: var(--surface);
}

.workshops-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
}

.workshop-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
}

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

.workshop-badge {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  background: var(--accent);
  color: white;
  padding: 6px 12px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.workshop-icon {
  font-size: 48px;
  margin-bottom: var(--spacing-md);
}

.workshop-card h3 {
  font-size: 24px;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.workshop-card > p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  line-height: 1.6;
}

.workshop-meta {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  color: var(--text-secondary);
}

.workshop-topics {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.topic-tag {
  padding: 6px 12px;
  background: var(--surface);
  border-radius: 100px;
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
}

.workshop-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border);
}

.workshop-price {
  display: flex;
  flex-direction: column;
}

.price {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}

.price-label {
  font-size: 14px;
  color: var(--text-secondary);
}

.workshop-placeholder {
  border: 2px dashed var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 400px;
}

.workshop-placeholder:hover {
  border-color: var(--primary);
  transform: none;
  box-shadow: none;
}

/* === Testimonials === */
.testimonials {
  background: var(--background);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.testimonial-card {
  background: var(--surface);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

.testimonial-stars {
  color: var(--accent);
  font-size: 18px;
  margin-bottom: var(--spacing-md);
}

.testimonial-text {
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
  font-style: italic;
}

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

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
}

.author-name {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 14px;
}

.author-title {
  font-size: 13px;
  color: var(--text-secondary);
}

/* === Pricing === */
.pricing {
  background: var(--surface);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
  max-width: 900px;
  margin: 0 auto var(--spacing-3xl);
}

.pricing-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: relative;
}

.pricing-featured {
  border: 2px solid var(--primary);
  box-shadow: var(--shadow-xl);
  transform: scale(1.05);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  right: var(--spacing-lg);
  background: var(--primary);
  color: white;
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

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

.pricing-header h3 {
  font-size: 24px;
  margin-bottom: var(--spacing-sm);
}

.pricing-header p {
  color: var(--text-secondary);
  margin: 0;
}

.pricing-price {
  text-align: center;
  padding: var(--spacing-xl) 0;
  margin-bottom: var(--spacing-xl);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.price-amount {
  display: block;
  font-size: 48px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

.price-period {
  color: var(--text-secondary);
  font-size: 14px;
}

.pricing-features {
  list-style: none;
  margin-bottom: var(--spacing-xl);
  flex-grow: 1;
}

.pricing-features li {
  padding: var(--spacing-sm) 0;
  color: var(--text-primary);
  font-size: 15px;
}

.pricing-guarantee {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  max-width: 600px;
  margin: 0 auto;
  padding: var(--spacing-lg);
  background: var(--primary-light);
  border-radius: var(--radius-md);
}

.guarantee-icon {
  font-size: 32px;
  flex-shrink: 0;
}

.pricing-guarantee h4 {
  font-size: 16px;
  margin-bottom: 4px;
}

.pricing-guarantee p {
  font-size: 14px;
  margin: 0;
}

/* === FAQ === */
.faq {
  background: var(--background);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
  max-width: 900px;
  margin: 0 auto;
}

.faq-item h3 {
  font-size: 18px;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.faq-item p {
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.6;
}

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

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

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

.cta p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 18px;
  margin-bottom: var(--spacing-xl);
}

.cta-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
}

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

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

.cta .btn-secondary {
  border-color: white;
  color: white;
}

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

/* === Footer === */
.footer {
  background: var(--secondary);
  color: white;
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-xl);
}

.footer-logo {
  display: flex;
  align-items: center;
  font-weight: 700;
  font-size: 20px;
  margin-bottom: var(--spacing-md);
}

.footer-column p {
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
}

.footer-column h4 {
  color: white;
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-md);
}

.footer-column ul {
  list-style: none;
}

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

.footer-column a {
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition);
}

.footer-column a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 14px;
  margin: 0;
}

/* === Responsive Design === */
@media (max-width: 1024px) {
  h1 { font-size: 48px; }
  h2 { font-size: 36px; }

  .hero-title {
    font-size: 48px;
  }

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

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

@media (max-width: 768px) {
  section {
    padding: var(--spacing-3xl) 0;
  }

  h1 { font-size: 36px; }
  h2 { font-size: 32px; }

  .nav-links {
    gap: var(--spacing-md);
  }

  .nav-links a:not(.nav-login) {
    display: none;
  }

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

  .hero-title {
    font-size: 36px;
  }

  .hero-subtitle {
    font-size: 18px;
  }

  .hero-container {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .hero-content {
    order: 2;
  }

  .hero-video {
    order: 1;
  }

  .hero-cta {
    flex-direction: column;
  }

  .hero-cta .btn {
    width: 100%;
  }

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

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

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

  .pricing-featured {
    transform: none;
  }

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

  .cta-buttons {
    flex-direction: column;
  }

  .cta-buttons .btn {
    width: 100%;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
}

@media (max-width: 480px) {
  h1 { font-size: 32px; }
  h2 { font-size: 28px; }

  .hero-title {
    font-size: 32px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .container {
    padding: 0 var(--spacing-md);
  }

  .nav-container {
    padding: 0 var(--spacing-md);
  }

  .hero-wrapper {
    padding: 0 var(--spacing-md);
  }
}