/* Premium CSS Design System */
:root {
  --bg-dark: #090d16;
  --bg-card: rgba(17, 24, 39, 0.7);
  --border-color: rgba(99, 102, 241, 0.15);
  --border-hover: rgba(99, 102, 241, 0.35);
  --primary: #6366f1; /* Indigo matching iOS App theme */
  --primary-glow: rgba(99, 102, 241, 0.45);
  --accent: #a855f7; /* Purple */
  --accent-glow: rgba(168, 85, 247, 0.3);
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --max-width: 1100px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  overflow-x: hidden;
  line-height: 1.6;
  position: relative;
}

/* Ambient Background Glows */
.ambient-glow-1 {
  position: absolute;
  top: -100px;
  right: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--primary-glow) 0%, rgba(9, 13, 22, 0) 70%);
  filter: blur(80px);
  z-index: -1;
  pointer-events: none;
}

.ambient-glow-2 {
  position: absolute;
  top: 600px;
  left: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, rgba(9, 13, 22, 0) 75%);
  filter: blur(100px);
  z-index: -1;
  pointer-events: none;
}

/* Navbar styling */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(9, 13, 22, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: all 0.3s ease;
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.25rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text-main);
  text-decoration: none;
}

.logo i {
  color: var(--primary);
}

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

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.3s ease;
}

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

.nav-right {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.lang-switcher {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  padding: 0.25rem;
  border-radius: 9999px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.lang-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.6rem;
  border-radius: 9999px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.lang-btn:hover {
  color: var(--text-main);
}

.lang-btn.active {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 2px 10px var(--primary-glow);
}

.lang-divider {
  color: rgba(255, 255, 255, 0.15);
  font-size: 0.8rem;
  pointer-events: none;
}

/* Container for sections */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 7rem 2rem 4rem 2rem;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 3rem 1rem 5rem 1rem;
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.3);
  padding: 0.5rem 1.25rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 2rem;
  animation: float 3s ease-in-out infinite;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.2;
  background: linear-gradient(135deg, var(--text-main) 30%, var(--primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto 2.5rem auto;
}

.hero-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: #ffffff;
  text-decoration: none;
  padding: 1rem 2.25rem;
  border-radius: 12px;
  font-weight: 600;
  box-shadow: 0 10px 25px -5px rgba(99, 102, 241, 0.4);
  transition: all 0.3s ease;
}

.hero-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 30px -5px rgba(99, 102, 241, 0.6);
}

/* Grid layout for features */
.section-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 2.5rem;
  text-align: center;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 50px;
  height: 4px;
  background: var(--primary);
  border-radius: 2px;
  margin: 0.75rem auto 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 6rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2.5rem 2rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
  box-shadow: 0 10px 30px -15px rgba(99, 102, 241, 0.3);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: rgba(99, 102, 241, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  margin-bottom: 1.5rem;
}

.feature-card h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Support Section */
.support-section {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 3.5rem 2.5rem;
  max-width: 800px;
  margin: 0 auto 6rem auto;
  text-align: center;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.support-section p {
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.contact-card {
  background: rgba(9, 13, 22, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 16px;
  padding: 1.5rem;
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  color: var(--text-main);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
}

.contact-card:hover {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.05);
}

.contact-card i {
  color: var(--primary);
}

/* Privacy Policy Section */
.privacy-section {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 4rem 3rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.privacy-meta {
  font-size: 0.9rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.privacy-content h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 2.5rem 0 1rem 0;
  color: var(--text-main);
}

.privacy-content p {
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  font-size: 0.98rem;
}

.privacy-content ul {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
  list-style-type: square;
  color: var(--text-muted);
}

.privacy-content li {
  margin-bottom: 0.5rem;
  font-size: 0.98rem;
}

/* Footer styling */
footer {
  border-top: 1px solid var(--border-color);
  background: #06090f;
  padding: 3rem 2rem;
  text-align: center;
}

footer p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Animations */
@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-5px);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-links {
    display: none; /* Simplification for mobile */
  }

  .nav-container {
    padding: 1rem 1.5rem;
  }

  .nav-right {
    gap: 1rem;
  }

  .hero h1 {
    font-size: 2.25rem;
  }

  .privacy-section {
    padding: 2.5rem 1.5rem;
  }
}