/* ─── Reset & Base ─── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  background: #0F172A;
  color: #CBD5E1;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ─── Utility ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s, transform 0.15s;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: #3B82F6; color: #fff; }
.btn-primary:hover { background: #2563EB; }
.btn-sm { padding: 8px 20px; font-size: 14px; }
.btn-lg { padding: 18px 40px; font-size: 18px; border-radius: 14px; }

/* ─── Nav ─── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(30, 41, 59, 0.6);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.nav-logo-img { height: 32px; width: 32px; border-radius: 8px; }
.nav-logo-text {
  font-size: 18px;
  font-weight: 700;
  color: #F1F5F9;
  letter-spacing: 0.5px;
}

/* ─── Hero ─── */
.hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 140px 24px 80px;
  display: flex;
  align-items: center;
  gap: 64px;
}
.hero-content {
  flex: 1;
  min-width: 0;
}
.hero-title {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 800;
  color: #F1F5F9;
  line-height: 1.15;
  letter-spacing: -0.5px;
}
.hero-subtitle {
  font-size: clamp(16px, 1.8vw, 18px);
  color: #94A3B8;
  max-width: 480px;
  margin: 20px 0 28px;
  line-height: 1.7;
}
.hero-video {
  flex-shrink: 0;
}
.video-container {
  position: relative;
  display: flex;
  justify-content: center;
}
.video-container video {
  display: block;
  width: 300px;
  height: auto;
  border-radius: 40px;
  border: 4px solid #334155;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5), inset 0 0 0 1px rgba(255,255,255,0.05);
  background: #000;
  aspect-ratio: 9 / 19.5;
  object-fit: cover;
}

/* ─── Feature Scenes ─── */
.features {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}
.feature-scene {
  padding: 32px 0;
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.feature-scene.visible {
  opacity: 1;
  transform: translateY(0);
}
.feature-card {
  display: flex;
  align-items: center;
  gap: 48px;
  background: #1E293B;
  border: 1px solid #334155;
  border-radius: 20px;
  padding: 48px;
  transition: border-color 0.3s;
}
.feature-card:hover { border-color: #3B82F6; }
.feature-scene.reverse .feature-card { flex-direction: row-reverse; }
.feature-text { flex: 1; min-width: 0; }
.feature-icon {
  width: 44px;
  height: 44px;
  background: rgba(59, 130, 246, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.feature-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: #3B82F6;
  margin-bottom: 12px;
}
.feature-text h2 {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  color: #F1F5F9;
  line-height: 1.2;
  margin-bottom: 16px;
}
.feature-text p {
  font-size: 16px;
  color: #94A3B8;
  line-height: 1.7;
  max-width: 480px;
}
.feature-media {
  flex: 1;
  min-width: 0;
  display: flex;
  justify-content: center;
}
.scene-video {
  width: 260px;
  height: auto;
  border-radius: 40px;
  border: 4px solid #334155;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4), inset 0 0 0 1px rgba(255,255,255,0.05);
  background: #000;
  aspect-ratio: 9 / 19.5;
  object-fit: cover;
}

/* ─── Waitlist ─── */
.waitlist {
  padding: 100px 24px;
  text-align: center;
  background: linear-gradient(180deg, #0F172A 0%, #1E293B 100%);
}
.waitlist-inner { max-width: 560px; margin: 0 auto; }
.waitlist h2 {
  font-size: clamp(24px, 3.5vw, 40px);
  font-weight: 800;
  color: #F1F5F9;
  margin-bottom: 12px;
}
.waitlist > .waitlist-inner > p {
  color: #94A3B8;
  font-size: 17px;
  margin-bottom: 32px;
  line-height: 1.6;
}
.waitlist-form {
  display: flex;
  gap: 12px;
  max-width: 480px;
  margin: 0 auto;
}
.waitlist-form input[type="email"] {
  flex: 1;
  padding: 14px 18px;
  font-size: 16px;
  border-radius: 10px;
  border: 1px solid #334155;
  background: #1E293B;
  color: #F1F5F9;
  outline: none;
  transition: border-color 0.2s;
}
.waitlist-form input[type="email"]::placeholder { color: #64748B; }
.waitlist-form input[type="email"]:focus { border-color: #3B82F6; }
.waitlist-success {
  margin-top: 16px;
  color: #10B981;
  font-weight: 600;
}
.waitlist-error {
  margin-top: 16px;
  color: #EF4444;
  font-weight: 600;
}

/* ─── Footer ─── */
.footer {
  padding: 32px 24px;
  border-top: 1px solid #1E293B;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}
.footer-links { margin-bottom: 12px; }
.footer-links a {
  color: #64748B;
  text-decoration: none;
  font-size: 14px;
}
.footer-links a:hover { color: #94A3B8; }
.footer p {
  color: #475569;
  font-size: 13px;
}

/* ─── Mobile ─── */
@media (max-width: 768px) {
  .feature-card,
  .feature-scene.reverse .feature-card {
    flex-direction: column;
    gap: 32px;
    padding: 32px 24px;
  }
  .feature-text p { max-width: 100%; }
  .waitlist-form { flex-direction: column; }
  .hero {
    flex-direction: column;
    text-align: center;
    padding: 120px 24px 48px;
    gap: 40px;
  }
  .hero-subtitle { margin-left: auto; margin-right: auto; }
}