/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.custom-landing-page body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.custom-landing-page header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

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

.logo {
  font-size: 1.8rem;
  font-weight: bold;
  color: #667eea;
}

/* Hero */
.hero {
  position: relative;
  color: white;
  padding: 80px 0;
  background: url('/img/step3/step5.jpg') center/cover;
  min-height: 80vh;
  display: flex;
  align-items: right;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(0, 151, 157, 0.8) 0%, rgba(0, 109, 117, 0.8) 100%);
  z-index: 1;
}

.hero-layout {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  width: 100%;
}

.hero-content h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  font-weight: 300;
}

.hero-content h2 {
  font-size: 1.4rem;
  margin-bottom: 2rem;
  font-weight: 400;
  opacity: 0.9;
}

.hero-description {
  font-size: 1.1rem;
  margin-bottom: 3rem;
  opacity: 0.9;
  line-height: 1.7;
}

/* Video Placeholder */
.video-placeholder {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  padding: 2rem;
  text-align: center;
  border: 2px solid rgba(255, 255, 255, 0.2);
  min-height: 300px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 320px;
  width: 560px;
}

.video-placeholder h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  opacity: 0.9;
}

.video-placeholder p {
  opacity: 0.7;
  margin-bottom: 2rem;
}

.play-button {
  width: 80px;
  height: 80px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.play-button:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.1);
}

/* Buttons */
.cta-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.btn {
  padding: 15px 30px;
  border: none;
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(45deg, #ff6b6b, #ff8e8e);
  color: white;
  box-shadow: 0 5px 15px rgba(255, 107, 107, 0.4);
}

.btn-secondary {
  background: linear-gradient(45deg, #4ecdc4, #6bcfcf);
  color: white;
  box-shadow: 0 5px 15px rgba(78, 205, 196, 0.4);
}

.btn-tertiary {
  background: linear-gradient(45deg, #feca57, #ff9ff3);
  color: white;
  box-shadow: 0 5px 15px rgba(254, 202, 87, 0.4);
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

/* How it works */
.how-it-works {
  background: white;
  padding: 80px 0;
}

.how-it-works h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 4rem;
  color: #333;
}

.how-it-works-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.features-nav {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.feature-nav-item {
  background: #f8f9fa;
  border: 2px solid transparent;
  border-radius: 15px;
  padding: 1.5rem;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.feature-nav-item.active {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-color: #667eea;
}

.feature-nav-item:hover {
  transform: translateX(10px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.feature-demo {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  border-radius: 20px;
  padding: 3rem;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
  min-height: 400px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.demo-content {
  display: none;
}

.demo-content.active {
  display: block;
  animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.demo-visual {
  width: 200px;
  height: 200px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 20px;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  color: white;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

.demo-content h3 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  color: #333;
}

.demo-content p {
  color: #666;
  line-height: 1.7;
  max-width: 300px;
  margin: 0 auto;
}

/* Features Grid */
.features {
  background: white;
  padding: 80px 0;
}

.features h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: #333;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.feature-card {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  padding: 2rem;
  border-radius: 20px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #667eea, #764ba2);
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: block;
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #333;
}

.feature-card p {
  color: #666;
  line-height: 1.7;
}

/* CTA */
.cta-section {
  background: #2c3e50;
  color: white;
  padding: 80px 0;
  text-align: center;
}

.cta-section h2 {
  font-size: 2.5rem;
  margin-bottom: 3rem;
}

.cta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.cta-card {
  background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
  padding: 2.5rem;
  border-radius: 20px;
  text-align: center;
  transition: transform 0.3s ease;
  position: relative;
  overflow: hidden;
}

.cta-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  transform: rotate(45deg);
  transition: transform 0.5s ease;
}

.cta-card:hover::before {
  transform: rotate(45deg) translate(20px, 20px);
}

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

.cta-card h3 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  position: relative;
  z-index: 1;
}

.cta-card p {
  margin-bottom: 2rem;
  opacity: 0.9;
  position: relative;
  z-index: 1;
}

.cta-card .btn {
  position: relative;
  z-index: 1;
}

/* Footer */
footer {
  background: #1a1a1a;
  color: white;
  padding: 2rem 0;
  text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .hero-content h1 {
    font-size: 2.5rem;
  }

  .hero-content h2 {
    font-size: 1.1rem;
  }

  .how-it-works-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

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

  .btn {
    width: 100%;
    max-width: 300px;
  }

  .materials {
    flex-direction: column;
  }
}
