:root {
  --bg: #070a12;
  --bg-2: #0b1020;
  --card: rgba(15, 24, 44, 0.76);
  --card-2: rgba(12, 19, 36, 0.92);
  --text: #f5f8ff;
  --muted: rgba(224, 233, 255, 0.72);
  --blue: #1f88ff;
  --blue-2: #45b5ff;
  --violet: #6c5cff;
  --pink: #e82c91;
  --border: rgba(111, 177, 255, 0.2);
  --shadow: 0 24px 90px rgba(31, 136, 255, 0.2);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 10%, rgba(232, 44, 145, 0.16), transparent 34rem),
    radial-gradient(circle at 85% 20%, rgba(31, 136, 255, 0.18), transparent 34rem),
    linear-gradient(180deg, #080913 0%, #070a12 45%, #090d18 100%);
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.65), transparent 80%);
}
a { color: inherit; }

.header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  height: 76px;
  display: flex;
  align-items: center;
  padding: 0 clamp(18px, 4vw, 60px);
  background: linear-gradient(180deg, rgba(7, 10, 18, .86), rgba(7, 10, 18, 0));
  backdrop-filter: blur(10px);
}
.brand { display: inline-flex; align-items: center; text-decoration: none; }
.brand__logo {
  width: 54px;
  height: 54px;
  border-radius: 15px;
  object-fit: cover;
  background: #07111f;
  box-shadow: 0 0 30px rgba(31, 136, 255, .62);
}

.section-center {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 22px 90px;
}
.hero__content, .final-download__inner {
  width: min(920px, 100%);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.eyebrow {
  margin: 0 0 12px;
  color: var(--blue-2);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .18em;
  text-transform: uppercase;
}
h1, h2, p { margin-top: 0; }
h1 {
  margin-bottom: 24px;
  font-size: clamp(56px, 11vw, 146px);
  line-height: .88;
  letter-spacing: -.08em;
  text-transform: lowercase;
  background: linear-gradient(110deg, #ef2b91 0%, #9b5cff 42%, #1f88ff 72%, #ef2b91 100%);
  background-size: 220% 220%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 34px rgba(31, 136, 255, .34));
  animation: gradientMove 7s ease-in-out infinite;
}
@keyframes gradientMove { 0%,100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }
.hero__subtitle {
  width: min(740px, 100%);
  margin: 0 auto 30px;
  color: var(--muted);
  font-size: clamp(18px, 2.6vw, 25px);
  line-height: 1.45;
}
.download-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(210px, 1fr));
  justify-content: center;
  align-items: start;
  gap: 18px;
  width: min(520px, 100%);
  margin: 8px auto 0;
}
.download-stack {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
  min-width: 0;
}
.button {
  min-width: 210px;
  height: 58px;
  padding: 0 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  background: rgba(255,255,255,.06);
  box-shadow: 0 12px 40px rgba(0,0,0,.24);
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.button:hover {
  transform: translateY(-2px);
  border-color: rgba(69, 181, 255, .56);
  box-shadow: 0 16px 48px rgba(31, 136, 255, .24);
  background: rgba(255,255,255,.09);
}
.button--primary {
  background: linear-gradient(135deg, rgba(31, 136, 255, .95), rgba(108, 92, 255, .92));
  border-color: rgba(139, 199, 255, .7);
}
.button__icon {
  width: 23px;
  height: 23px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 23px;
}
.button__icon svg {
  width: 100%;
  height: 100%;
  display: block;
  fill: currentColor;
}
.source-link {
  display: block;
  width: 100%;
  min-height: 18px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.25;
  text-align: center;
  text-underline-offset: 4px;
}

.feature {
  width: min(1180px, calc(100% - 44px));
  margin: 0 auto;
  padding: clamp(60px, 8vw, 105px) 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 1.06fr);
  gap: clamp(28px, 6vw, 78px);
  align-items: center;
}
.feature--first { padding-top: 30px; }
.feature--reverse { grid-template-columns: minmax(320px, 1.06fr) minmax(0, 1fr); }
.feature--reverse .feature__text { order: 2; }
.feature--reverse .feature__visual { order: 1; }
.feature__text {
  max-width: 520px;
}
.feature__text h2, .final-download h2 {
  margin-bottom: 18px;
  font-size: clamp(34px, 5vw, 60px);
  line-height: 1.05;
  letter-spacing: -.04em;
}
.feature__text p, .final-download p {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.68;
}
.feature__visual {
  position: relative;
  min-height: 340px;
  padding: clamp(14px, 2vw, 22px);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 36px;
  background:
    radial-gradient(circle at 50% 35%, rgba(31, 136, 255, .2), transparent 60%),
    linear-gradient(145deg, rgba(255,255,255,.08), rgba(255,255,255,.025));
  box-shadow: var(--shadow);
  overflow: hidden;
}
.feature__visual::before {
  content: "";
  position: absolute;
  inset: -30%;
  background: conic-gradient(from 180deg, transparent, rgba(31,136,255,.22), rgba(232,44,145,.15), transparent);
  filter: blur(50px);
  opacity: .75;
}
.feature__visual img {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: auto;
  max-height: 430px;
  object-fit: contain;
  border-radius: 24px;
}
.final-download { min-height: auto; padding-top: 110px; padding-bottom: 90px; }
.final-download__logo {
  width: 148px;
  height: 148px;
  margin-bottom: 28px;
  object-fit: cover;
  border-radius: 34px;
  box-shadow: 0 0 58px rgba(31, 136, 255, .68);
}
.final-download p { width: min(650px, 100%); }
.footer {
  padding: 28px 22px 42px;
  text-align: center;
  color: rgba(224, 233, 255, .58);
  font-size: 14px;
}
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 780px) {
  .header {
    position: absolute;
    height: 70px;
    justify-content: center;
    padding: 0 16px;
  }
  .brand__logo { width: 48px; height: 48px; border-radius: 13px; }
  .section-center {
    min-height: 92vh;
    padding: 96px 18px 64px;
  }
  h1 {
    font-size: clamp(54px, 17vw, 78px);
    letter-spacing: -.075em;
    margin-bottom: 20px;
    text-align: center;
  }
  .hero__subtitle {
    max-width: 340px;
    font-size: 17px;
    text-align: center;
  }
  .download-grid {
    grid-template-columns: 1fr;
    width: min(100%, 286px);
    gap: 16px;
    margin-left: auto;
    margin-right: auto;
  }
  .download-stack {
    width: 100%;
    gap: 9px;
  }
  .button {
    width: 100%;
    min-width: 0;
    height: 56px;
    margin: 0 auto;
  }
  .source-link {
    text-align: center;
  }
  .feature, .feature--reverse {
    width: min(100% - 28px, 440px);
    grid-template-columns: 1fr;
    gap: 22px;
    padding: 54px 0;
    text-align: center;
  }
  .feature--reverse .feature__text, .feature--reverse .feature__visual { order: initial; }
  .feature__text {
    max-width: 100%;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .feature__text h2, .final-download h2 {
    font-size: clamp(32px, 10vw, 42px);
    text-align: center;
  }
  .feature__text p, .final-download p {
    width: min(100%, 360px);
    margin-left: auto;
    margin-right: auto;
    font-size: 16px;
    line-height: 1.6;
    text-align: center;
  }
  .feature__visual {
    min-height: 230px;
    width: 100%;
    padding: 12px;
    border-radius: 26px;
    margin: 0 auto;
  }
  .feature__visual img {
    max-height: 300px;
    border-radius: 18px;
  }
  .final-download { padding-top: 62px; padding-bottom: 70px; }
  .final-download__logo { width: 124px; height: 124px; border-radius: 28px; }
}

@media (max-width: 380px) {
  .section-center { padding-left: 14px; padding-right: 14px; }
  .feature, .feature--reverse { width: calc(100% - 22px); }
  .download-grid { width: min(100%, 270px); }
  .button { width: 100%; }
}