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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background: #f5f5f7;
  color: #1d1d1f;
  line-height: 1.6;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(18px);
  background: rgba(255, 255, 255, 0.72);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 7%;
}

.nav-logo {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.navbar nav {
  display: flex;
  gap: 28px;
}

.navbar nav a {
  text-decoration: none;
  color: #1d1d1f;
  font-size: 0.95rem;
  transition: 0.3s ease;
}

.navbar nav a:hover {
  color: #0066cc;
}

/* Hero */
.hero {
  min-height: 92vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 7%;
  background:
    radial-gradient(circle at top, rgba(0, 102, 204, 0.10), transparent 35%),
    linear-gradient(180deg, #fbfbfd 0%, #eef2f7 100%);
}

.hero-content {
  max-width: 900px;
}

.hero-tag {
  font-size: 1rem;
  color: #0066cc;
  font-weight: 600;
  margin-bottom: 14px;
}

.hero h1 {
  font-size: 4rem;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 22px;
  font-weight: 750;
}

.hero-description {
  font-size: 1.2rem;
  color: #555;
  max-width: 760px;
  margin: 0 auto 34px;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  text-decoration: none;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 1rem;
  font-weight: 600;
  transition: 0.3s ease;
}

.btn-primary {
  background: #0071e3;
  color: white;
}

.btn-primary:hover {
  background: #005ec3;
}

.btn-secondary {
  background: #e8e8ed;
  color: #1d1d1f;
}

.btn-secondary:hover {
  background: #dcdce2;
}

/* Sections */
.section {
  padding: 100px 7%;
}

.section-header {
  max-width: 850px;
  margin: 0 auto 50px;
  text-align: center;
}

.section-label {
  color: #0066cc;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.section-header h2 {
  font-size: 2.7rem;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 18px;
}

.section-header p {
  font-size: 1.08rem;
  color: #555;
}

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.stat-card {
  background: white;
  padding: 32px;
  border-radius: 24px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
  transition: transform 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-6px);
}

.stat-card h3 {
  font-size: 1.4rem;
  margin-bottom: 10px;
}

/* Dark section */
.dark-section {
  background: #000;
  color: white;
}

.light-text h2,
.light-text p {
  color: white;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-card {
  background: linear-gradient(180deg, #111 0%, #1a1a1a 100%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 30px;
  border-radius: 24px;
  transition: 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 255, 255, 0.18);
}

.feature-card h3 {
  font-size: 1.35rem;
  margin-bottom: 12px;
}

.feature-card p {
  color: #c7c7cc;
}

/* Media */
.media-card {
  background: white;
  border-radius: 28px;
  padding: 24px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
}

.image-card img {
  width: 100%;
  display: block;
  border-radius: 18px;
}

.video-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  max-width: 1000px;
  margin: 0 auto;
}

.media-card h3 {
  font-size: 1.3rem;
  margin-bottom: 16px;
}

.media-card video {
  width: 100%;
  border-radius: 18px;
  display: block;
  background: #000;
}

/* Highlight */
.highlight-section {
  background: linear-gradient(180deg, #f5f5f7 0%, #eaf1f9 100%);
}

.highlight-box {
  max-width: 900px;
  margin: 0 auto;
  background: white;
  padding: 50px;
  border-radius: 30px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.08);
  text-align: center;
}

.highlight-box h2 {
  font-size: 2.4rem;
  margin-bottom: 20px;
  letter-spacing: -1px;
}

.highlight-box p {
  color: #555;
  font-size: 1.08rem;
}

/* Footer */
.footer {
  background: #111;
  color: #f5f5f7;
  text-align: center;
  padding: 50px 20px;
}

.footer h3 {
  font-size: 1.4rem;
  margin-bottom: 12px;
}

.footer p {
  color: #b8b8bd;
  margin-bottom: 6px;
}

/* Responsive */
@media (max-width: 992px) {
  .hero h1 {
    font-size: 3rem;
  }

  .section-header h2,
  .highlight-box h2 {
    font-size: 2.1rem;
  }

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

@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    gap: 12px;
    padding: 16px 5%;
  }

  .navbar nav {
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
  }

  .hero {
    min-height: 80vh;
    padding: 50px 5%;
  }

  .hero h1 {
    font-size: 2.4rem;
  }

  .hero-description {
    font-size: 1rem;
  }

  .section {
    padding: 70px 5%;
  }

  .section-header h2,
  .highlight-box h2 {
    font-size: 1.8rem;
  }

  .highlight-box {
    padding: 32px 24px;
  }
}