:root {
  --bg: #06101c;
  --bg-soft: #0a1726;
  --panel: rgba(14, 29, 47, 0.78);
  --panel-strong: #102238;
  --text: #f5f8fb;
  --muted: #9eb0c5;
  --line: rgba(157, 190, 222, 0.18);
  --accent: #54d2d2;
  --accent-2: #72a7ff;
  --accent-3: #a2f5d6;
  --shadow: 0 20px 80px rgba(0, 0, 0, 0.28);
  --shell: min(1160px, calc(100vw - 40px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 50% -10%, rgba(48, 102, 164, .18), transparent 34%),
    linear-gradient(180deg, #07111f 0%, #050c15 48%, #07111f 100%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }

.shell { width: var(--shell); margin-inline: auto; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.ambient {
  position: fixed;
  border-radius: 999px;
  filter: blur(100px);
  opacity: .18;
  pointer-events: none;
  z-index: -1;
}
.ambient-one { width: 420px; height: 420px; background: var(--accent-2); top: 18%; left: -220px; }
.ambient-two { width: 340px; height: 340px; background: var(--accent); bottom: 10%; right: -180px; }

.site-header {
  width: var(--shell);
  height: 78px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  position: relative;
  z-index: 20;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-weight: 760;
  letter-spacing: -.02em;
}

.brand-mark {
  width: 30px;
  height: 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3px;
  transform: skewY(-8deg);
}
.brand-mark span {
  border: 1px solid rgba(113, 225, 224, .8);
  background: linear-gradient(180deg, rgba(84, 210, 210, .25), rgba(84, 210, 210, .03));
  border-radius: 2px;
}
.brand-mark span:nth-child(2) { transform: translateY(4px); }
.brand-mark span:nth-child(3) { transform: translateY(8px); }

.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav a { color: #b8c7d7; font-size: .92rem; transition: color .2s ease; }
.site-nav a:hover { color: #fff; }
.site-nav .nav-cta {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 16px;
  color: #effaff;
  background: rgba(255, 255, 255, .025);
}
.nav-toggle { display: none; }

.hero {
  min-height: 760px;
  padding: 104px 0 80px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.eyebrow, .kicker {
  text-transform: uppercase;
  letter-spacing: .16em;
  font-size: .72rem;
  font-weight: 800;
  color: #8fe7e6;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 12px;
  border: 1px solid rgba(84, 210, 210, .18);
  background: rgba(84, 210, 210, .05);
  border-radius: 999px;
}
.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-3);
  box-shadow: 0 0 0 5px rgba(162, 245, 214, .08);
}

.hero h1 {
  margin: 26px 0 20px;
  max-width: 950px;
  font-size: clamp(3.2rem, 7vw, 6.8rem);
  line-height: .94;
  letter-spacing: -.07em;
  font-weight: 820;
}
.hero h1 span {
  color: transparent;
  background: linear-gradient(90deg, #ffffff 5%, #8fe4ef 45%, #7e9fff 100%);
  -webkit-background-clip: text;
  background-clip: text;
}
.hero-copy {
  max-width: 730px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1.04rem, 2vw, 1.27rem);
}
.hero-actions { display: flex; gap: 12px; margin-top: 30px; }
.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border-radius: 10px;
  font-size: .92rem;
  font-weight: 750;
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.button:hover { transform: translateY(-2px); }
.button.primary {
  color: #04131b;
  background: linear-gradient(135deg, #9ef1e0, #72cfe9);
  box-shadow: 0 12px 35px rgba(84, 210, 210, .16);
}
.button.secondary { border: 1px solid var(--line); color: #dfe9f2; background: rgba(255,255,255,.02); }

.dock-visual {
  width: 100%;
  margin-top: 76px;
  display: grid;
  grid-template-columns: 1fr 80px 1.15fr 80px 1fr;
  gap: 18px;
  align-items: center;
}
.dock-column, .dock-core {
  min-height: 220px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(18, 38, 60, .85), rgba(7, 19, 32, .83));
  border-radius: 18px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}
.dock-column { padding: 22px; text-align: left; }
.dock-label { display: block; margin-bottom: 18px; color: #7f93aa; font-size: .67rem; font-weight: 800; letter-spacing: .14em; }
.source-stack { display: grid; gap: 10px; }
.mini-card {
  padding: 13px 14px;
  border: 1px solid rgba(255,255,255,.07);
  border-radius: 9px;
  color: #c8d8e7;
  background: rgba(255,255,255,.025);
  font-size: .88rem;
}
.dock-core {
  min-height: 270px;
  padding: 24px;
  text-align: left;
  position: relative;
  overflow: hidden;
  border-color: rgba(84,210,210,.31);
}
.dock-core::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}
.core-topline { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; color: #7a91a8; font-size: .72rem; letter-spacing: .16em; font-weight: 800; }
.status-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent-3); box-shadow: 0 0 14px rgba(162,245,214,.6); }
.dock-core > strong { display: block; font-size: 1.28rem; letter-spacing: -.03em; }
.manifest-list { margin-top: 22px; border-top: 1px solid var(--line); }
.manifest-list div { display: flex; justify-content: space-between; gap: 16px; padding: 13px 0; border-bottom: 1px solid var(--line); color: #9fb1c5; font-size: .78rem; }
.manifest-list b { font-size: .68rem; letter-spacing: .08em; color: #a7ebe2; }
.flow-line { height: 1px; background: rgba(115, 171, 221, .2); overflow: hidden; position: relative; }
.flow-line span { position: absolute; top: -1px; width: 30%; height: 3px; background: linear-gradient(90deg, transparent, var(--accent), transparent); animation: travel 2.5s linear infinite; }
@keyframes travel { from { left: -35%; } to { left: 105%; } }

.signal-strip {
  min-height: 66px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 18px;
  border-block: 1px solid var(--line);
  background: rgba(255,255,255,.015);
  color: #778ca3;
  font-size: .69rem;
  font-weight: 800;
  letter-spacing: .16em;
}
.signal-strip span { color: #31506c; }

.section { padding: 118px 0; }
.section-heading { max-width: 850px; margin-bottom: 48px; }
.section-heading.compact { max-width: 760px; }
.section h2 {
  margin: 10px 0 16px;
  font-size: clamp(2.2rem, 5vw, 4.2rem);
  line-height: 1.02;
  letter-spacing: -.055em;
}
.section-heading p, .principle-copy p { color: var(--muted); font-size: 1.05rem; }

.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.step-card, .use-grid article {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(15, 31, 50, .63), rgba(8, 19, 31, .55));
  border-radius: 15px;
}
.step-card { min-height: 260px; padding: 24px; }
.step-number, .use-grid article > span { color: #67d6d6; font-size: .72rem; font-weight: 850; letter-spacing: .12em; }
.step-card h3, .use-grid h3, .principle h3, .roadmap h3 { margin: 30px 0 8px; font-size: 1.13rem; letter-spacing: -.02em; }
.step-card p, .use-grid p, .principle p, .roadmap p { margin: 0; color: #91a5bb; font-size: .9rem; }

.split-section { display: grid; grid-template-columns: 1.2fr .8fr; gap: 90px; align-items: start; border-top: 1px solid var(--line); }
.split-section h2 { font-size: clamp(2.5rem, 4.5vw, 4.4rem); }
.principle-copy { padding-top: 16px; }
.principle-copy p + p { margin-top: 24px; }

.use-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.use-grid article { min-height: 230px; padding: 25px; }
.use-grid h3 { margin-top: 36px; }

.principles-section { border-top: 1px solid var(--line); }
.principles-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.principle { display: grid; grid-template-columns: 44px 1fr; gap: 16px; padding: 26px; border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,.016); }
.principle > span { color: #68d4d5; font-size: .74rem; font-weight: 800; padding-top: 4px; }
.principle h3 { margin: 0 0 6px; }

.roadmap-section { border-top: 1px solid var(--line); }
.roadmap { max-width: 860px; margin-top: 52px; position: relative; }
.roadmap::before { content: ""; position: absolute; left: 13px; top: 15px; bottom: 35px; width: 1px; background: var(--line); }
.roadmap-item { display: grid; grid-template-columns: 28px 1fr; gap: 24px; position: relative; padding: 0 0 42px; }
.roadmap-marker { width: 27px; height: 27px; border-radius: 50%; border: 1px solid #36516d; background: var(--bg); position: relative; z-index: 1; }
.roadmap-item.active .roadmap-marker { border-color: var(--accent); box-shadow: inset 0 0 0 6px var(--bg), inset 0 0 0 12px var(--accent); }
.roadmap small { color: #66819a; letter-spacing: .13em; font-weight: 800; }
.roadmap h3 { margin: 5px 0 7px; font-size: 1.25rem; }

.closing { padding: 50px 0 100px; }
.closing-card {
  padding: 74px 54px;
  text-align: center;
  border: 1px solid rgba(90, 202, 210, .24);
  border-radius: 24px;
  background:
    radial-gradient(circle at 50% 0%, rgba(87, 197, 211, .11), transparent 48%),
    linear-gradient(180deg, rgba(17, 37, 58, .72), rgba(8, 18, 30, .8));
  box-shadow: var(--shadow);
}
.closing h2 { margin: 10px auto 14px; max-width: 820px; font-size: clamp(2.5rem, 5.5vw, 5rem); line-height: 1; letter-spacing: -.06em; }
.closing p { margin: 0 auto 28px; color: var(--muted); max-width: 650px; }

.site-footer {
  min-height: 120px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  color: #6f8499;
  font-size: .78rem;
}
.footer-brand { color: #b8c7d5; font-size: .88rem; }
.footer-brand .brand-mark { width: 25px; height: 20px; }

@media (max-width: 980px) {
  .dock-visual { grid-template-columns: 1fr; max-width: 680px; }
  .flow-line { width: 1px; height: 40px; justify-self: center; background: rgba(115,171,221,.2); }
  .flow-line span { width: 3px; height: 30%; top: -35%; left: -1px; animation: travel-vertical 2.5s linear infinite; }
  @keyframes travel-vertical { from { top: -35%; } to { top: 105%; } }
  .dock-column { min-height: auto; }
  .steps-grid { grid-template-columns: 1fr 1fr; }
  .use-grid { grid-template-columns: 1fr 1fr; }
  .split-section { grid-template-columns: 1fr; gap: 26px; }
}

@media (max-width: 760px) {
  :root { --shell: min(100% - 28px, 1160px); }
  .site-header { height: 68px; }
  .nav-toggle {
    display: grid;
    gap: 4px;
    width: 42px;
    height: 42px;
    place-content: center;
    border: 1px solid var(--line);
    border-radius: 9px;
    background: transparent;
  }
  .nav-toggle span:not(.sr-only) { width: 18px; height: 1px; background: #d7e3ed; }
  .site-nav {
    display: none;
    position: absolute;
    top: 62px;
    right: 0;
    width: min(300px, calc(100vw - 28px));
    padding: 18px;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    border: 1px solid var(--line);
    border-radius: 13px;
    background: #0a1726;
    box-shadow: var(--shadow);
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 11px 9px; }
  .site-nav .nav-cta { margin-top: 8px; text-align: center; }
  .hero { min-height: auto; padding-top: 76px; }
  .hero h1 { font-size: clamp(3.15rem, 15vw, 5.5rem); }
  .hero-actions { width: 100%; max-width: 420px; flex-direction: column; }
  .dock-visual { margin-top: 60px; }
  .signal-strip { gap: 10px; padding: 16px; }
  .signal-strip div:nth-of-type(n+5), .signal-strip span:nth-of-type(n+4) { display: none; }
  .section { padding: 86px 0; }
  .steps-grid, .use-grid, .principles-grid { grid-template-columns: 1fr; }
  .step-card, .use-grid article { min-height: auto; }
  .closing-card { padding: 58px 24px; }
  .site-footer { padding: 32px 0; flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; }
}