* {
  box-sizing: border-box;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", sans-serif;
  background: #050816;
  color: white;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(circle at 20% 20%, rgba(0,229,255,.25), transparent 30%),
    radial-gradient(circle at 80% 15%, rgba(124,58,237,.35), transparent 28%),
    radial-gradient(circle at 50% 90%, rgba(52,211,153,.18), transparent 35%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 48px 48px;
}

.site-header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: rgba(5, 8, 22, .72);
  border-bottom: 1px solid rgba(255,255,255,.09);
}

.nav {
  max-width: 1200px;
  margin: auto;
  padding: 18px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  color: white;
  text-decoration: none;
  font-size: 24px;
  font-weight: 900;
}

.logo span {
  color: #00e5ff;
}

.menu {
  display: flex;
  gap: 24px;
}

.menu a {
  color: #dbeafe;
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
}

.menu a:hover {
  color: #00e5ff;
}

.menu-btn {
  display: none;
  background: none;
  border: 0;
  color: white;
  font-size: 28px;
}

.hero {
  min-height: 100vh;
  max-width: 1200px;
  margin: auto;
  padding: 150px 24px 80px;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 50px;
  align-items: center;
}

.badge {
  display: inline-block;
  padding: 10px 16px;
  margin-bottom: 24px;
  border-radius: 999px;
  color: #7dd3fc;
  background: rgba(0,229,255,.09);
  border: 1px solid rgba(0,229,255,.35);
  font-weight: 800;
}

.hero h1 {
  font-size: clamp(46px, 7vw, 88px);
  line-height: .95;
  letter-spacing: -3px;
  margin: 0 0 24px;
}

.hero h1 span {
  background: linear-gradient(90deg, #00e5ff, #a78bfa, #34d399);
  -webkit-background-clip: text;
  color: transparent;
}

.hero p {
  max-width: 680px;
  color: #cbd5e1;
  font-size: 19px;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.btn {
  padding: 15px 24px;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 900;
  transition: .3s;
}

.btn:hover {
  transform: translateY(-3px);
}

.primary {
  color: white;
  background: linear-gradient(135deg, #00e5ff, #7c3aed);
  box-shadow: 0 0 35px rgba(0,229,255,.3);
}

.secondary {
  color: white;
  border: 1px solid rgba(255,255,255,.18);
  background: rgba(255,255,255,.06);
}

.hero-visual {
  position: relative;
  min-height: 450px;
  border-radius: 36px;
  background: linear-gradient(145deg, rgba(255,255,255,.15), rgba(255,255,255,.04));
  border: 1px solid rgba(255,255,255,.14);
  box-shadow: 0 30px 90px rgba(0,0,0,.35);
  overflow: hidden;
}

.glow-ball {
  position: absolute;
  width: 270px;
  height: 270px;
  top: 72px;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, #00e5ff, #7c3aed 55%, transparent 70%);
  animation: float 5s ease-in-out infinite;
}

.orbit {
  position: absolute;
  inset: 55px;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 50%;
  animation: spin 18s linear infinite;
}

.orbit-2 {
  inset: 95px;
  animation-duration: 12s;
}

.stat-box {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.stat-box div {
  padding: 18px;
  border-radius: 18px;
  background: rgba(5,8,22,.72);
  border: 1px solid rgba(255,255,255,.12);
}

.stat-box strong {
  display: block;
  color: #00e5ff;
  font-size: 24px;
}

.stat-box span {
  color: #cbd5e1;
  font-size: 12px;
}

.section {
  max-width: 1200px;
  margin: auto;
  padding: 90px 24px;
}

.section-title {
  text-align: center;
  margin-bottom: 42px;
}

.section-title h2 {
  font-size: clamp(34px, 5vw, 56px);
  margin: 0 0 14px;
  letter-spacing: -2px;
}

.section-title p {
  color: #cbd5e1;
  font-size: 17px;
}

.about-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 24px;
}

.glass-card,
.sound-card,
.card,
.video-box,
.form-box {
  border-radius: 30px;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 30px 90px rgba(0,0,0,.18);
}

.glass-card {
  padding: 34px;
}

.glass-card h3 {
  font-size: 32px;
  margin-top: 0;
}

.glass-card p,
.card p {
  color: #cbd5e1;
  line-height: 1.8;
}

.sound-card {
  min-height: 320px;
  display: grid;
  place-items: center;
}

.sound-wave {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sound-wave span {
  width: 12px;
  border-radius: 999px;
  background: linear-gradient(to top, #00e5ff, #a78bfa);
  animation: wave 1.2s infinite ease-in-out;
}

.sound-wave span:nth-child(1) { height: 50px; }
.sound-wave span:nth-child(2) { height: 110px; animation-delay: .1s; }
.sound-wave span:nth-child(3) { height: 160px; animation-delay: .2s; }
.sound-wave span:nth-child(4) { height: 80px; animation-delay: .3s; }
.sound-wave span:nth-child(5) { height: 140px; animation-delay: .4s; }
.sound-wave span:nth-child(6) { height: 70px; animation-delay: .5s; }

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.card {
  padding: 30px;
  transition: .3s;
}

.card:hover {
  transform: translateY(-8px);
  border-color: rgba(0,229,255,.45);
}

.icon {
  font-size: 34px;
  margin-bottom: 18px;
}

.video-box,
.form-box {
  overflow: hidden;
}

.video-box iframe {
  width: 100%;
  height: 540px;
  border: 0;
}

.form-box iframe {
  width: 100%;
  height: 1100px;
  border: 0;
  background: white;
}

footer {
  padding: 32px;
  text-align: center;
  color: #94a3b8;
  border-top: 1px solid rgba(255,255,255,.08);
}

@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-18px); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes wave {
  0%, 100% { transform: scaleY(.75); }
  50% { transform: scaleY(1.15); }
}

@media (max-width: 900px) {
  .hero,
  .about-grid,
  .cards {
    grid-template-columns: 1fr;
  }

  .menu-btn {
    display: block;
  }

  .menu {
    display: none;
    position: absolute;
    top: 68px;
    left: 24px;
    right: 24px;
    padding: 20px;
    border-radius: 20px;
    background: rgba(5,8,22,.96);
    flex-direction: column;
  }

  .menu.active {
    display: flex;
  }

  .hero-visual {
    min-height: 540px;
  }

  .stat-box {
    grid-template-columns: 1fr;
  }

  .video-box iframe {
    height: 260px;
  }
}