:root {
  --bg: #050914;
  --bg2: #071525;
  --card: rgba(8, 18, 34, 0.92);
  --card2: rgba(255, 255, 255, 0.07);
  --text: #ffffff;
  --muted: #cbd5e1;
  --green: #27e19c;
  --green-dark: #0ea56f;
  --cyan: #26d9ff;
  --blue: #3772ff;
  --line: rgba(255,255,255,0.13);
  --shadow: 0 30px 90px rgba(0,0,0,0.46);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 12%, rgba(39, 225, 156, 0.22), transparent 30%),
    radial-gradient(circle at 86% 14%, rgba(38, 217, 255, 0.16), transparent 32%),
    radial-gradient(circle at 50% 96%, rgba(55, 114, 255, 0.16), transparent 34%),
    linear-gradient(135deg, var(--bg), var(--bg2) 62%, #02120c);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.65), transparent 78%);
}

.page {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 44px 0;
  position: relative;
  z-index: 1;
}

.card {
  border: 1px solid var(--line);
  border-radius: 34px;
  background: linear-gradient(145deg, rgba(10, 24, 46, 0.96), rgba(5, 12, 23, 0.94));
  box-shadow: var(--shadow);
  overflow: hidden;
  backdrop-filter: blur(14px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 22px 28px;
  border-bottom: 1px solid var(--line);
  font-weight: 950;
  font-size: 24px;
  letter-spacing: -0.6px;
}

.center-brand {
  justify-content: center;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--green), var(--cyan));
  color: #03130b;
  font-weight: 1000;
  box-shadow: 0 12px 25px rgba(39, 225, 156, 0.25);
}

.hero {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 34px;
  align-items: center;
  padding: 48px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 999px;
  background: rgba(39, 225, 156, 0.14);
  color: var(--green);
  border: 1px solid rgba(39, 225, 156, 0.28);
  font-size: 13px;
  font-weight: 950;
  margin-bottom: 18px;
}

h1 {
  font-size: clamp(43px, 6.3vw, 72px);
  line-height: 0.94;
  letter-spacing: -3px;
  margin: 0 0 20px;
}

p {
  font-size: 19px;
  line-height: 1.65;
  color: var(--muted);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 30px 0;
}

.steps div {
  padding: 17px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--card2);
}

.steps strong {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--green), var(--cyan));
  color: #03130b;
  margin-bottom: 11px;
  font-weight: 950;
}

.steps span {
  font-weight: 900;
  font-size: 14px;
}

.cta {
  width: min(460px, 100%);
  display: inline-flex;
  justify-content: center;
  align-items: center;
  text-decoration: none;
  border: 0;
  border-radius: 18px;
  padding: 19px 26px;
  color: #03130b;
  background: linear-gradient(135deg, var(--green), var(--cyan));
  box-shadow: 0 18px 38px rgba(39, 225, 156, 0.26);
  font-size: 20px;
  font-weight: 1000;
  text-transform: uppercase;
  cursor: pointer;
}

.cta:hover {
  transform: translateY(-1px);
}

.notice {
  font-size: 13px;
  margin-top: 18px;
  color: #9fb0c4;
}

.image-card {
  border-radius: 30px;
  background:
    radial-gradient(circle at 30% 10%, rgba(39, 225, 156, 0.16), transparent 34%),
    rgba(255,255,255,0.06);
  border: 1px solid var(--line);
  padding: 24px;
  min-height: 420px;
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
}

.image-card::after {
  content: "Install • Open • Run 30s";
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 22px;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(0,0,0,0.34);
  border: 1px solid rgba(255,255,255,0.12);
  color: #e5fff4;
  font-weight: 900;
  text-align: center;
}

.image-card img {
  width: min(260px, 80%);
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 42px;
  display: block;
  box-shadow: 0 24px 70px rgba(0,0,0,0.42), 0 0 0 10px rgba(255,255,255,0.05);
}

.info {
  margin-top: 22px;
  padding: 26px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--line);
  border-radius: 26px;
}

.info h2 {
  margin: 0 0 8px;
  font-size: 24px;
  letter-spacing: -0.4px;
}

.info p {
  margin: 0;
  font-size: 14px;
}

.compact-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
}

.continue-card {
  width: min(730px, 100%);
}

.continue-box {
  padding: 50px 34px;
  text-align: center;
}

.continue-box h1 {
  font-size: clamp(42px, 6vw, 62px);
}

.loading {
  margin-top: 24px;
  display: grid;
  justify-items: center;
  gap: 8px;
}

.hidden { display: none; }

.spinner {
  width: 42px;
  height: 42px;
  border: 4px solid rgba(255,255,255,0.20);
  border-top-color: var(--green);
  border-radius: 999px;
  animation: spin 0.8s linear infinite;
}

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

@media (max-width: 850px) {
  .page {
    padding: 26px 0;
  }

  .hero {
    grid-template-columns: 1fr;
    padding: 28px;
  }

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

  .brand {
    padding: 18px;
  }

  .image-card {
    min-height: 310px;
  }

  .continue-box {
    padding: 32px 22px;
  }
}