:root {
  color-scheme: dark;
  --bg: #030506;
  --panel: #0b1012;
  --text: #f4fbff;
  --muted: #a8b7bd;
  --line: rgba(195, 242, 255, 0.2);
  --cyan: #71e6ff;
  --ice: #dff9ff;
  --danger: #d24b55;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", Arial, sans-serif;
  letter-spacing: 0;
}

a {
  color: inherit;
}

.site-header {
  position: fixed;
  z-index: 10;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(18px, 4vw, 56px);
  background: linear-gradient(180deg, rgba(3, 5, 6, 0.92), rgba(3, 5, 6, 0.35));
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
  text-transform: uppercase;
  font-size: 14px;
}

.brand img {
  width: 32px;
  height: 32px;
}

nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
}

nav a,
footer a {
  text-decoration: none;
}

nav a:hover,
footer a:hover {
  color: var(--cyan);
}

.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 104px 18px 80px;
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -3;
  background:
    linear-gradient(90deg, rgba(3, 5, 6, 0.92), rgba(7, 26, 30, 0.62), rgba(3, 5, 6, 0.94)),
    radial-gradient(circle at 50% 35%, rgba(113, 230, 255, 0.22), transparent 36%),
    linear-gradient(180deg, #030506 0%, #091012 58%, #030506 100%);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 34%;
  z-index: -1;
  background: linear-gradient(0deg, #030506 0%, transparent 100%);
}

.hero-visual {
  position: absolute;
  inset: 0;
  z-index: -2;
  opacity: 0.42;
  background-image: url("spectral-divide-logo.jpg");
  background-repeat: no-repeat;
  background-position: center;
  background-size: min(1200px, 110vw) auto;
  filter: blur(8px) saturate(1.25);
  transform: scale(1.08);
}

.hero-content {
  width: min(980px, 100%);
  text-align: center;
}

.hero-logo {
  width: min(780px, 94vw);
  height: auto;
  display: block;
  margin: 0 auto 22px;
  filter: drop-shadow(0 18px 48px rgba(113, 230, 255, 0.3));
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(46px, 9vw, 104px);
  line-height: 0.92;
  margin-bottom: 18px;
  text-transform: uppercase;
  font-weight: 900;
}

.hero p {
  width: min(760px, 100%);
  margin: 0 auto 28px;
  color: var(--ice);
  font-size: clamp(18px, 2.1vw, 25px);
  line-height: 1.45;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 6px;
  text-decoration: none;
  font-weight: 800;
  text-transform: uppercase;
  font-size: 13px;
}

.button.primary {
  background: var(--ice);
  color: #061013;
  border-color: var(--ice);
}

.button.secondary {
  background: rgba(3, 5, 6, 0.46);
  color: var(--text);
}

.scroll-cue {
  position: absolute;
  bottom: 26px;
  width: 28px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 18px;
}

.scroll-cue span {
  position: absolute;
  top: 10px;
  left: 50%;
  width: 4px;
  height: 9px;
  margin-left: -2px;
  border-radius: 4px;
  background: var(--cyan);
}

.info-band {
  padding: 72px 18px 88px;
  background:
    linear-gradient(180deg, #030506 0%, #0b1012 100%),
    linear-gradient(90deg, transparent, rgba(210, 75, 85, 0.08), transparent);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.section-inner {
  width: min(1120px, 100%);
  margin: 0 auto;
}

.eyebrow {
  color: var(--cyan);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.info-band h2,
.policy h1 {
  max-width: 850px;
  font-size: clamp(34px, 5vw, 64px);
  line-height: 1.02;
  margin-bottom: 20px;
}

.info-band > .section-inner > p:not(.eyebrow) {
  max-width: 760px;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.6;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 42px;
  background: var(--line);
}

.feature-grid article {
  min-height: 180px;
  padding: 28px;
  background: #071012;
}

.feature-grid h3 {
  margin-bottom: 12px;
  font-size: 24px;
}

.feature-grid p,
.policy-content p {
  color: var(--muted);
  line-height: 1.65;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 26px clamp(18px, 4vw, 56px);
  color: var(--muted);
  background: #030506;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 14px;
}

.policy-page {
  background:
    linear-gradient(180deg, rgba(113, 230, 255, 0.08), transparent 280px),
    var(--bg);
}

.policy {
  width: min(900px, calc(100% - 36px));
  margin: 0 auto;
  padding: 118px 0 76px;
}

.policy-hero {
  padding-bottom: 34px;
  border-bottom: 1px solid var(--line);
}

.policy-hero p:last-child {
  color: var(--muted);
}

.policy-content {
  padding-top: 28px;
}

.policy-content h2 {
  margin: 32px 0 10px;
  font-size: 24px;
}

@media (max-width: 780px) {
  .site-header {
    position: absolute;
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  nav {
    width: 100%;
    justify-content: space-between;
    gap: 12px;
  }

  .hero {
    min-height: 94vh;
    padding-top: 132px;
  }

  .hero-logo {
    width: min(540px, 96vw);
  }

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

  footer {
    flex-direction: column;
  }
}