/* IFE Bridge Website Styles */

:root {
  --color-bg-dark: #0f0f1e;
  --color-bg-card: #1a1a2e;
  --color-primary: #00d9ff;
  --color-secondary: #0099ff;
  --color-accent: #00ff88;
  --color-text: #ffffff;
  --color-text-muted: #a0a0b0;
  --color-border: rgba(0, 217, 255, 0.2);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background: var(--color-bg-dark);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Navigation */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(15, 15, 30, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  padding: 1rem 0;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--color-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.3s;
  font-weight: 500;
}

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

/* Mobile menu */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 1.5rem;
  cursor: pointer;
}

@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg-card);
    flex-direction: column;
    padding: 1rem;
    gap: 0;
    display: none;
  }

  .nav-links.active {
    display: flex;
  }

  .nav-links li {
    padding: 1rem 0;
    border-bottom: 1px solid var(--color-border);
  }

  .nav-links li:last-child {
    border-bottom: none;
  }
}

/* Main content */
main {
  margin-top: 80px;
  min-height: calc(100vh - 80px);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Hero Section */
.hero {
  padding: 6rem 0;
  text-align: center;
  background: linear-gradient(135deg, rgba(0, 153, 255, 0.1), rgba(0, 217, 255, 0.05));
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(0, 217, 255, 0.1) 0%, transparent 70%);
  animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero .tagline {
  font-size: 1.5rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-button {
  display: inline-block;
  padding: 1rem 2.5rem;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: var(--color-bg-dark);
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1.1rem;
  transition: transform 0.3s, box-shadow 0.3s;
  box-shadow: 0 10px 30px rgba(0, 217, 255, 0.3);
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 40px rgba(0, 217, 255, 0.4);
}

/* Section */
section {
  padding: 4rem 0;
}

section h2 {
  font-size: 2.5rem;
  margin-bottom: 3rem;
  text-align: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 2rem;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.card:hover {
  transform: translateY(-5px);
  border-color: var(--color-primary);
  box-shadow: 0 10px 30px rgba(0, 217, 255, 0.2);
}

.card-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: inline-block;
}

.card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--color-primary);
}

.card p {
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* Technical Specs */
.tech-specs {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 2rem;
  margin: 2rem 0;
}

.tech-specs h3 {
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.spec-list {
  list-style: none;
  padding: 0;
}

.spec-list li {
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  justify-content: space-between;
}

.spec-list li:last-child {
  border-bottom: none;
}

.spec-label {
  color: var(--color-text-muted);
  font-weight: 500;
}

.spec-value {
  color: var(--color-accent);
  font-weight: 600;
}

/* FAQ */
.faq-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1rem;
  cursor: pointer;
  transition: border-color 0.3s;
}

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

.faq-question {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-answer {
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-top: 1rem;
}

/* Footer */
footer {
  background: var(--color-bg-card);
  border-top: 1px solid var(--color-border);
  padding: 3rem 0 2rem;
  margin-top: 4rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h4 {
  color: var(--color-primary);
  margin-bottom: 1rem;
}

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

.footer-section li {
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.3s;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.mt-4 {
  margin-top: 4rem;
}

.mb-4 {
  margin-bottom: 4rem;
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }

  .hero .tagline {
    font-size: 1.2rem;
  }

  section h2 {
    font-size: 2rem;
  }

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

/* Badge */
.beta-badge {
  display: inline-block;
  background: rgba(0, 217, 255, 0.2);
  color: var(--color-primary);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-left: 0.5rem;
  border: 1px solid var(--color-primary);
}