* {
  box-sizing: border-box;
}

:root {
  color-scheme: dark;
  --bg: #090b10;
  --panel: rgba(17, 20, 28, 0.72);
  --panel-strong: #11141c;
  --text: #f2f4f8;
  --muted: #8d95a5;
  --line: rgba(255,255,255,0.10);
  --line-strong: rgba(255,255,255,0.18);
  --accent: #9ea7ff;
  --accent-soft: rgba(158,167,255,0.14);
  --max: 1180px;
}

html {
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 12%, rgba(86, 97, 255, 0.12), transparent 32rem),
    radial-gradient(circle at 86% 78%, rgba(89, 42, 125, 0.10), transparent 30rem),
    var(--bg);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.38;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, black, transparent 88%);
}

a {
  color: inherit;
  text-decoration: none;
}

.ambient {
  position: fixed;
  width: 32rem;
  height: 32rem;
  top: 12%;
  right: -14rem;
  border: 1px solid rgba(158,167,255,0.14);
  border-radius: 50%;
  box-shadow:
    0 0 0 6rem rgba(158,167,255,0.015),
    0 0 0 12rem rgba(158,167,255,0.01);
  pointer-events: none;
}

.site-header,
.site-footer,
.hero,
.page {
  width: min(calc(100% - 40px), var(--max));
  margin-inline: auto;
}

.site-header {
  height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.brand {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.dot {
  color: var(--accent);
}

.nav {
  display: flex;
  gap: 28px;
  align-items: center;
}

.nav a {
  color: var(--muted);
  font-size: 0.92rem;
  transition: color 160ms ease;
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--text);
}

.hero {
  min-height: calc(100vh - 168px);
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(260px, 0.55fr);
  gap: clamp(48px, 8vw, 120px);
  align-items: center;
  padding: 90px 0;
}

.hero-copy {
  max-width: 760px;
}

.eyebrow {
  margin: 0 0 22px;
  color: var(--accent);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

h1 {
  margin: 0;
  font-size: clamp(3.2rem, 7vw, 6.9rem);
  line-height: 0.92;
  letter-spacing: -0.065em;
  font-weight: 650;
}

.intro,
.page-head > p:last-child {
  max-width: 620px;
  margin: 30px 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.7vw, 1.25rem);
  line-height: 1.65;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 38px;
}

.button {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  font-size: 0.93rem;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
  border-color: rgba(255,255,255,0.32);
}

.button.primary {
  background: var(--text);
  color: #0a0b0f;
  border-color: var(--text);
}

.button.ghost {
  background: rgba(255,255,255,0.025);
}

.signal-card {
  min-height: 330px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: linear-gradient(150deg, rgba(255,255,255,0.045), rgba(255,255,255,0.012));
  backdrop-filter: blur(10px);
}

.signal-top {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--muted);
  font: 0.78rem ui-monospace, SFMono-Regular, Menlo, monospace;
}

.signal-light {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #8effb1;
  box-shadow: 0 0 18px rgba(142,255,177,0.48);
}

.signal-mark {
  align-self: center;
  font-size: clamp(6rem, 12vw, 9rem);
  line-height: 1;
  font-weight: 750;
  letter-spacing: -0.08em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255,255,255,0.23);
}

.signal-card p {
  margin: 0;
  color: var(--muted);
  font: 0.78rem ui-monospace, SFMono-Regular, Menlo, monospace;
}

.site-footer {
  min-height: 80px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-top: 1px solid var(--line);
  color: #6f7685;
  font-size: 0.78rem;
}

.footer-sep {
  color: #3b404b;
}

.site-footer a:hover {
  color: var(--text);
}

.page {
  min-height: calc(100vh - 168px);
  padding: 110px 0 120px;
}

.page-head {
  max-width: 780px;
}

.page .page-head h1 {
  font-size: clamp(4.5rem, 10vw, 8.6rem);
}

.entries {
  margin-top: 80px;
  border-top: 1px solid var(--line);
}

.entry {
  min-height: 130px;
  display: grid;
  grid-template-columns: 90px 1fr auto;
  gap: 24px;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.entry-number,
.entry-arrow {
  color: #5f6673;
  font: 0.78rem ui-monospace, SFMono-Regular, Menlo, monospace;
}

.entry h2 {
  margin: 0 0 8px;
  font-size: 1.2rem;
  font-weight: 600;
}

.entry p {
  margin: 0;
  color: var(--muted);
}

.placeholder {
  opacity: 0.72;
}

@media (max-width: 760px) {
  .site-header {
    height: 74px;
  }

  .nav {
    gap: 18px;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 76px 0;
  }

  .signal-card {
    min-height: 230px;
  }

  .page {
    padding: 78px 0 100px;
  }

  .entries {
    margin-top: 56px;
  }

  .entry {
    grid-template-columns: 54px 1fr auto;
    gap: 14px;
  }
}

@media (max-width: 470px) {
  .site-header,
  .site-footer,
  .hero,
  .page {
    width: min(calc(100% - 28px), var(--max));
  }

  .nav a:first-child {
    display: none;
  }

  h1 {
    font-size: clamp(3.15rem, 16vw, 4.8rem);
  }

  .site-footer {
    flex-wrap: wrap;
    padding: 20px 0;
  }
}