:root {
  --navy: #06223f;
  --ocean: #0e7490;
  --aqua: #36d1dc;
  --sand: #ffe7b7;
  --white: #ffffff;
  --glass: rgba(255, 255, 255, 0.14);
  --glass-border: rgba(255, 255, 255, 0.25);
}

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

body {
  min-height: 100vh;
  font-family: "Montserrat", sans-serif;
  color: var(--white);
  background: var(--navy);
}

.hero {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  padding: 28px clamp(20px, 5vw, 72px) 70px;
  background:
    linear-gradient(135deg, rgba(6, 34, 63, 0.96), rgba(14, 116, 144, 0.74)),
    url("https://images.unsplash.com/photo-1507525428034-b723cf961d3e?auto=format&fit=crop&w=1800&q=80") center/cover no-repeat;
}

.overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top right, rgba(54, 209, 220, 0.45), transparent 34%),
    radial-gradient(circle at bottom left, rgba(255, 231, 183, 0.3), transparent 32%);
  pointer-events: none;
}

.nav,
.hero-content {
  position: relative;
  z-index: 2;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--white);
  text-decoration: none;
  font-weight: 800;
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  letter-spacing: -0.03em;
}

.logo span span {
  color: var(--sand);
}

.logo-icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--aqua), var(--sand));
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.25);
}

.nav-button,
.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.nav-button {
  padding: 12px 20px;
  color: var(--white);
  border: 1px solid var(--glass-border);
  background: var(--glass);
  backdrop-filter: blur(14px);
}

.primary-button {
  padding: 15px 24px;
  color: var(--navy);
  background: linear-gradient(135deg, var(--sand), #ffffff);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.22);
  white-space: nowrap;
}

.nav-button:hover,
.primary-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 42px rgba(0, 0, 0, 0.28);
}

.hero-content {
  max-width: 1040px;
  margin-top: clamp(70px, 12vh, 150px);
}

.eyebrow {
  display: inline-flex;
  margin-bottom: 18px;
  padding: 9px 16px;
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  background: var(--glass);
  backdrop-filter: blur(14px);
  color: var(--sand);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

h1 {
  max-width: 900px;
  font-family: "Playfair Display", serif;
  font-size: clamp(3.1rem, 8vw, 7.6rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
  text-shadow: 0 18px 44px rgba(0, 0, 0, 0.25);
}

.subtitle {
  max-width: 720px;
  margin-top: 24px;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(1rem, 2vw, 1.25rem);
  line-height: 1.75;
}

.launch-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  max-width: 820px;
  margin-top: 34px;
  padding: 18px;
  border: 1px solid var(--glass-border);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.17);
  backdrop-filter: blur(18px);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.22);
}

.card-label {
  display: block;
  color: var(--sand);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.launch-card strong {
  display: block;
  font-size: clamp(1rem, 2vw, 1.3rem);
}

.features {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 30px;
}

.features article {
  padding: 24px;
  border: 1px solid var(--glass-border);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.13);
  backdrop-filter: blur(15px);
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.18);
}

.features span {
  font-size: 2rem;
}

.features h2 {
  margin-top: 12px;
  font-size: 1.05rem;
}

.features p {
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.6;
  font-size: 0.95rem;
}

.wave {
  position: absolute;
  left: -5%;
  right: -5%;
  bottom: -92px;
  height: 180px;
  background: rgba(255, 255, 255, 0.16);
  border-radius: 50% 50% 0 0;
  filter: blur(1px);
  animation: floatWave 7s ease-in-out infinite;
}

@keyframes floatWave {
  0%, 100% { transform: translateY(0) rotate(-1deg); }
  50% { transform: translateY(-16px) rotate(1deg); }
}

@media (max-width: 760px) {
  .hero {
    padding-bottom: 44px;
  }

  .nav {
    align-items: flex-start;
  }

  .nav-button {
    padding: 10px 14px;
    font-size: 0.9rem;
  }

  .hero-content {
    margin-top: 64px;
  }

  .launch-card {
    align-items: stretch;
    flex-direction: column;
  }

  .primary-button {
    width: 100%;
  }

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

@media (max-width: 460px) {
  .logo {
    font-size: 1.05rem;
  }

  .logo-icon {
    width: 42px;
    height: 42px;
  }

  h1 {
    font-size: clamp(2.7rem, 15vw, 4rem);
  }
}