:root {
  color-scheme: dark;
  --bg: #050913;
  --panel: rgba(10, 18, 33, 0.7);
  --line: rgba(148, 189, 255, 0.18);
  --text: #f1f6ff;
  --muted: #9db2cc;
  --accent: #86d6ff;
  --accent-warm: #ffc978;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: "Segoe UI", "Bahnschrift", sans-serif;
  background: radial-gradient(circle at top, #11203b 0%, #050913 45%, #04060d 100%);
  color: var(--text);
}

body {
  overflow-x: hidden;
}

#starfield {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.shell {
  position: relative;
  z-index: 1;
  padding: 32px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.24em;
  font-size: 0.74rem;
  font-weight: 700;
}

.brand {
  margin: 0 0 18px;
  font-size: clamp(2rem, 4vw, 4rem);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.hero {
  min-height: auto;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.7fr);
  gap: 32px;
  align-items: end;
  margin-bottom: 28px;
}

.hero__copy {
  max-width: 760px;
  padding: 24px 0 48px;
}

.hero h1,
.section h2 {
  margin: 0 0 18px;
  font-size: clamp(2.4rem, 5vw, 5.2rem);
  line-height: 0.95;
}

.lede,
.section p {
  max-width: 58ch;
  color: var(--muted);
  font-size: 1.06rem;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 26px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.95rem 1.35rem;
  text-decoration: none;
  border: 1px solid var(--line);
  color: var(--text);
  background: transparent;
  font-weight: 700;
}

.button--primary {
  background: linear-gradient(135deg, rgba(134, 214, 255, 0.22), rgba(255, 201, 120, 0.16));
}

.mission-panel,
.signal-card {
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(18px);
}

.mission-panel {
  border-radius: 28px;
  padding: 24px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.28);
}

.mission-panel h2 {
  margin: 0 0 10px;
  font-size: 1.7rem;
}

.mission-panel p {
  color: var(--muted);
  line-height: 1.7;
}

.mission-panel__meta {
  display: grid;
  gap: 14px;
  margin: 24px 0 0;
}

.mission-panel__meta dt,
.signal-card span {
  color: var(--accent);
  font-size: 0.76rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.mission-panel__meta dd,
.signal-card strong {
  margin: 4px 0 0;
  font-size: 1rem;
}

main {
  display: grid;
  gap: 40px;
  padding-bottom: 56px;
}

.site-footer {
  padding: 0 0 36px;
  color: var(--muted);
  font-size: 0.92rem;
}

.demo-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(300px, 0.7fr);
  gap: 24px;
  align-items: start;
}

.demo-frame {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 28px;
  overflow: hidden;
  background: rgba(7, 12, 22, 0.82);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.28);
}

#dockCanvas {
  width: 100%;
  height: auto;
  display: block;
  background: linear-gradient(180deg, #07101d 0%, #040812 100%);
}

.demo-overlay {
  position: absolute;
  left: 18px;
  top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.overlay-chip {
  border: 1px solid rgba(148, 189, 255, 0.24);
  background: rgba(6, 11, 21, 0.62);
  backdrop-filter: blur(10px);
  border-radius: 999px;
  padding: 0.6rem 0.9rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.section {
  padding: 18px 0;
}

.section-heading {
  margin-bottom: 24px;
}

.signal-grid {
  display: grid;
  gap: 16px;
}

.signal-card {
  border-radius: 22px;
  padding: 22px;
}

.footer-call {
  padding-bottom: 80px;
}

@media (max-width: 960px) {
  .shell {
    padding: 20px;
  }

  .hero,
  .demo-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 34px;
  }
}