:root {
  --bg: #050816;
  --bg-dark: #030512;
  --glass: rgba(255,255,255,0.06);
  --accent: #0d8bff;
  --accent-2: #5cc8ff;
  --text: #f5f7ff;
  --muted: #aab0d9;
}

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

body {
  font-family: 'Outfit', sans-serif;
  background: var(--bg);
  color: var(--text);
}

/* HERO */
.hero {
  position: relative;
  height: 100vh;
  overflow: hidden;
}

.video-bg iframe {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 120%;
  height: 120%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top, rgba(13,139,255,0.25), transparent 60%),
              linear-gradient(180deg, rgba(3,5,18,0.7), rgba(3,5,18,0.95));
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  padding: 120px 5%;
}

.badge {
  display: inline-block;
  background: var(--glass);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 8px 16px;
  border-radius: 40px;
  font-size: 13px;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: 48px;
  line-height: 1.1;
}

.hero h1 span {
  color: var(--accent);
}

.hero p {
  margin: 30px 0 40px;
  color: var(--muted);
  max-width: 600px;
}

.hero-note {
  margin-top: 20px;
  font-size: 14px;
  color: var(--muted);
  opacity: 0.85;
}

/* BUTTONS */
.btn-primary {
  padding: 16px 36px;
  border-radius: 40px;
  font-weight: 600;
  text-decoration: none;
  background: var(--accent);
  color: #fff;
  display: inline-block;
}

.big {
  font-size: 18px;
}

/* SECTIONS */
section {
  padding: 100px 5%;
  text-align: center;
}

/* IMMERSIVE */
.immersive {
  background: linear-gradient(180deg, #030512, #050816);
}

.immersive-grid {
  max-width: 1200px;
  margin: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.immersive-text h2 {
  font-size: 38px;
  margin-bottom: 20px;
}

.immersive-text ul {
  list-style: none;
  margin-bottom: 20px;
}

.immersive-text li {
  margin-bottom: 10px;
}

.note {
  font-size: 14px;
  opacity: 0.7;
}

/* IMAGES */
.immersive-images {
  display: grid;
  gap: 20px;
}

.img-card {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  background: var(--glass);
  backdrop-filter: blur(12px);
  box-shadow: 0 30px 80px rgba(0,0,0,0.6);
}

.img-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.img-card span {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 12px 16px;
  background: linear-gradient(180deg, transparent, rgba(0,0,0,0.75));
  font-size: 14px;
}

/* ERA */
.era-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 40px;
  margin-top: 50px;
}

.era-card {
  background: var(--glass);
  padding: 40px;
  border-radius: 20px;
  width: 220px;
}

.era-card.highlight {
  border: 1px solid var(--accent);
}

.era-arrow {
  font-size: 40px;
  color: var(--accent);
}

/* TECH */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px,1fr));
  gap: 20px;
  margin-top: 50px;
}

.tech-item {
  background: var(--glass);
  padding: 30px;
  border-radius: 20px;
}

/* NUMBERS */
.numbers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px,1fr));
  gap: 30px;
  margin-top: 50px;
}

.number-card {
  background: var(--glass);
  padding: 40px;
  border-radius: 24px;
}

.number-card span {
  font-size: 36px;
  color: var(--accent);
}

/* CTA */
.cta-final {
  background: radial-gradient(circle at center, rgba(13,139,255,0.25), transparent 60%);
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero h1 {
    font-size: 34px;
  }

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

  .era-grid {
    flex-direction: column;
  }
}