@import url("https://fonts.googleapis.com/css2?family=Literata:opsz,wght@7..72,500;7..72,600&family=Space+Grotesk:wght@400;500;700&display=swap");

:root {
  color-scheme: dark;
  --bg: #071019;
  --panel: rgba(7, 16, 25, 0.78);
  --line: rgba(128, 221, 255, 0.18);
  --line-strong: rgba(128, 221, 255, 0.34);
  --text: #edfaff;
  --muted: #9eb6c2;
  --cyan: #7ee7ff;
  --seafoam: #8dffd6;
  --gold: #f7d88f;
  --shadow: 0 24px 90px rgba(0, 0, 0, 0.36);
  --radius-lg: 20px;
  --max-width: 1180px;
}

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

body {
  margin: 0;
  color: var(--text);
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 10% 10%, rgba(126, 231, 255, 0.18), transparent 0 24rem),
    radial-gradient(circle at 88% 15%, rgba(141, 255, 214, 0.12), transparent 0 18rem),
    radial-gradient(circle at 40% 100%, rgba(247, 216, 143, 0.08), transparent 0 26rem),
    linear-gradient(180deg, #0a1520, var(--bg));
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.7), transparent 90%);
  opacity: 0.26;
}

a { color: inherit; }

.site-shell { position: relative; z-index: 1; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(18px);
  background: rgba(7, 16, 25, 0.72);
  border-bottom: 1px solid rgba(126, 231, 255, 0.08);
}

.topbar-inner,
.section-inner,
.footer-inner {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 74px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 35%, rgba(255, 255, 255, 0.9), transparent 0 0.38rem),
    radial-gradient(circle at 60% 45%, rgba(126, 231, 255, 0.9), transparent 0 0.8rem),
    radial-gradient(circle at 50% 50%, rgba(126, 231, 255, 0.28), rgba(126, 231, 255, 0.04) 70%);
  box-shadow: 0 0 30px rgba(126, 231, 255, 0.28);
}

.brand-copy strong,
.eyebrow,
.stat-value,
.card-title,
.timeline-step strong,
.metric strong,
.doc-card strong,
.download-card strong {
  letter-spacing: 0.02em;
}

.brand-copy small,
.eyebrow,
.kicker,
.muted,
.section-copy {
  color: var(--muted);
}

.nav,
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.nav a,
.footer-nav a {
  color: rgba(237, 250, 255, 0.82);
  text-decoration: none;
  transition: color 160ms ease;
}

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

.hero { padding: 72px 0 32px; }

.hero-grid,
.split-grid,
.three-up,
.doc-grid,
.download-grid,
.gallery-grid,
.ethics-grid,
.whitepaper-layout,
.table-grid {
  display: grid;
  gap: 24px;
}

.hero-grid {
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  align-items: center;
}

.split-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.three-up { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.doc-grid,
.download-grid,
.gallery-grid { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.ethics-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.whitepaper-layout { grid-template-columns: 1.2fr 0.8fr; }
.table-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.84rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.eyebrow::before {
  content: "";
  width: 34px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan));
}

h1, h2, h3 { margin: 0; line-height: 1.02; }

h1 {
  font-family: "Literata", Georgia, serif;
  font-size: clamp(3rem, 8vw, 5.6rem);
  max-width: 11ch;
}

h2 {
  font-family: "Literata", Georgia, serif;
  font-size: clamp(2rem, 5vw, 3.25rem);
}

h3 { font-size: 1.28rem; }

.hero-copy > p,
.section-copy,
.lead {
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 64ch;
}

.hero-actions,
.section-actions,
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(126, 231, 255, 0.08);
  text-decoration: none;
  color: var(--text);
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
  border-color: rgba(126, 231, 255, 0.46);
}

.button.primary { background: linear-gradient(135deg, rgba(126, 231, 255, 0.22), rgba(141, 255, 214, 0.18)); }
.button.secondary { background: rgba(247, 216, 143, 0.08); border-color: rgba(247, 216, 143, 0.24); }
.button.ghost { background: transparent; }

.hero-visual,
.card,
.doc-card,
.download-card,
.screenshot-card,
.timeline-step,
.whitepaper-section,
.ethics-principle,
.stat-card,
.metric {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.hero-visual {
  padding: 20px;
  position: relative;
  overflow: hidden;
  min-height: 460px;
}

.hero-visual::before,
.hero-visual::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  filter: blur(20px);
}

.hero-visual::before {
  width: 220px;
  height: 220px;
  right: -60px;
  top: -60px;
  background: rgba(126, 231, 255, 0.16);
}

.hero-visual::after {
  width: 160px;
  height: 160px;
  left: -30px;
  bottom: -40px;
  background: rgba(141, 255, 214, 0.12);
}

.visual-window {
  position: relative;
  min-height: 418px;
  padding: 18px;
  border-radius: 22px;
  border: 1px solid rgba(126, 231, 255, 0.14);
  background:
    radial-gradient(circle at 50% 90%, rgba(126, 231, 255, 0.12), transparent 0 11rem),
    linear-gradient(180deg, rgba(13, 29, 42, 0.96), rgba(7, 16, 25, 0.96));
  overflow: hidden;
}

.visual-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: rgba(237, 250, 255, 0.76);
  font-size: 0.88rem;
}

.dot-row { display: inline-flex; gap: 8px; }
.dot-row span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(237, 250, 255, 0.2);
}

.overlay-card,
.overlay-pill,
.overlay-bar {
  position: absolute;
  border-radius: 18px;
  border: 1px solid rgba(126, 231, 255, 0.14);
  background: rgba(10, 24, 36, 0.82);
}

.overlay-card { width: 190px; padding: 14px; }
.overlay-card strong,
.overlay-pill strong { display: block; margin-bottom: 8px; }
.overlay-card p,
.overlay-pill p,
.card p,
.doc-card p,
.download-card p,
.whitepaper-section p,
.ethics-principle p,
.metric p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.65;
}

.overlay-card.note-one { top: 86px; left: 24px; }
.overlay-card.note-two { right: 28px; top: 148px; }
.overlay-card.note-three { left: 96px; bottom: 36px; }

.overlay-pill {
  right: 24px;
  bottom: 154px;
  width: 170px;
  padding: 12px 14px;
}

.overlay-pill strong { color: var(--gold); }

.overlay-bar {
  left: 32px;
  right: 32px;
  bottom: 112px;
  height: 10px;
  overflow: hidden;
}

.overlay-bar::after {
  content: "";
  display: block;
  width: 62%;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--seafoam));
  border-radius: inherit;
}

.overlay-swell {
  position: absolute;
  inset: auto -10% 18% auto;
  width: 120%;
  height: 140px;
  background:
    radial-gradient(circle at 8% 40%, rgba(126, 231, 255, 0.75), transparent 0 0.1rem),
    radial-gradient(circle at 22% 62%, rgba(141, 255, 214, 0.7), transparent 0 0.08rem),
    linear-gradient(180deg, transparent, rgba(126, 231, 255, 0.08)),
    repeating-radial-gradient(circle at 10% 50%, rgba(126, 231, 255, 0.28) 0 2px, transparent 2px 90px);
  opacity: 0.42;
  mask-image: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.98));
}

.stat-row,
.metric-grid {
  display: grid;
  gap: 16px;
}

.stat-row {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 24px;
}

.stat-card,
.metric,
.card,
.doc-card,
.download-card,
.timeline-step,
.whitepaper-section,
.ethics-principle {
  padding: 20px;
}

.stat-value { font-size: 1.8rem; color: var(--cyan); }

.section { padding: 32px 0; }

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}

.card,
.download-card,
.doc-card,
.screenshot-card {
  position: relative;
  overflow: hidden;
}

.card::before,
.doc-card::before,
.download-card::before,
.screenshot-card::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, rgba(126, 231, 255, 0.04), rgba(126, 231, 255, 0.34), transparent 78%);
}

.card-title,
.doc-card strong,
.download-card strong,
.screenshot-card strong {
  font-size: 1.06rem;
}

.kicker {
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.8rem;
}

.feature-list,
.whitepaper-list,
.principle-list,
.roadmap-list,
.resource-list {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 18px 0 0;
  list-style: none;
}

.feature-list li,
.whitepaper-list li,
.principle-list li,
.roadmap-list li,
.resource-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: rgba(237, 250, 255, 0.92);
  line-height: 1.5;
}

.feature-list li::before,
.whitepaper-list li::before,
.principle-list li::before,
.roadmap-list li::before,
.resource-list li::before {
  content: "";
  width: 8px;
  height: 8px;
  margin-top: 9px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan), var(--seafoam));
  box-shadow: 0 0 18px rgba(126, 231, 255, 0.34);
  flex: 0 0 auto;
}

.doc-card a,
.download-card a,
.inline-link {
  color: var(--cyan);
  text-decoration: none;
}

.screenshot-card {
  padding: 16px;
}

.screenshot-frame {
  margin: -4px -4px 14px;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(126, 231, 255, 0.12);
  background: rgba(255, 255, 255, 0.03);
}

.screenshot-frame img {
  display: block;
  width: 100%;
  height: 260px;
  object-fit: cover;
  object-position: top center;
}

.screenshot-card p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.65;
}

.tip-box {
  border-color: rgba(247, 216, 143, 0.24);
  background:
    linear-gradient(180deg, rgba(247, 216, 143, 0.05), transparent 28%),
    var(--panel);
}

.timeline {
  display: grid;
  gap: 14px;
}

.timeline-step {
  display: grid;
  grid-template-columns: 66px 1fr;
  gap: 16px;
  align-items: start;
}

.timeline-step .phase {
  width: 66px;
  height: 66px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  color: var(--bg);
  background: linear-gradient(135deg, var(--gold), #fff0c8);
  font-weight: 700;
  box-shadow: 0 0 28px rgba(247, 216, 143, 0.18);
}

.metric strong {
  display: block;
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.footer { padding: 42px 0 56px; }

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid rgba(126, 231, 255, 0.08);
  padding-top: 28px;
}

.page-hero { padding: 56px 0 18px; }
.page-hero .lead { max-width: 72ch; }

@media (max-width: 980px) {
  .hero-grid,
  .split-grid,
  .three-up,
  .whitepaper-layout,
  .ethics-grid,
  .table-grid {
    grid-template-columns: 1fr;
  }

  .section-head,
  .topbar-inner,
  .footer-inner {
    align-items: flex-start;
  }

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

@media (max-width: 640px) {
  .hero { padding-top: 42px; }
  h1 { font-size: clamp(2.5rem, 15vw, 4rem); }
  .hero-visual { min-height: 400px; }
  .overlay-card.note-two { top: 162px; right: 18px; }
  .overlay-card.note-three { left: 26px; right: 26px; width: auto; }
  .screenshot-frame img { height: 210px; }
}