:root {
  --bg: #07131f;
  --bg-soft: #0f1f2f;
  --panel: rgba(15, 31, 47, 0.72);
  --panel-strong: rgba(18, 35, 53, 0.92);
  --line: rgba(255, 255, 255, 0.1);
  --text: #f3f7fb;
  --muted: #9db0c1;
  --teal: #1fd1c2;
  --blue: #6ca8ff;
  --gold: #b8a26a;
  --green: #46d29e;
  --red: #ff7f8f;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(31, 209, 194, 0.12), transparent 30%),
    radial-gradient(circle at top right, rgba(108, 168, 255, 0.14), transparent 26%),
    linear-gradient(180deg, #06111b 0%, #091421 38%, #07131f 100%);
  color: var(--text);
}

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

.page-shell {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(20px);
  background: rgba(7, 19, 31, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.site-nav .page-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 46px;
  height: 46px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0.08em;
  background:
    radial-gradient(circle at 50% 50%, rgba(31, 209, 194, 0.22), transparent 55%),
    linear-gradient(135deg, rgba(108, 168, 255, 0.3), rgba(31, 209, 194, 0.18)),
    rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
}

.brand-title {
  font-family: "DM Serif Display", Georgia, serif;
  font-size: 1.2rem;
}

.brand-sub {
  color: var(--muted);
  font-size: 0.82rem;
}

.nav-links {
  display: flex;
  gap: 22px;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav-cta {
  padding: 12px 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--teal), #1aa89d);
  color: #041017;
  font-weight: 700;
}

.hero {
  padding: 64px 0 40px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 28px;
  align-items: stretch;
}

.hero-copy,
.hero-card,
.section-card,
.quote-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 42px;
  position: relative;
  overflow: hidden;
}

.eyebrow {
  color: var(--teal);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.74rem;
  font-weight: 800;
}

.hero h1,
.section-card h2,
.brandbook-hero h1 {
  font-family: "DM Serif Display", Georgia, serif;
  line-height: 1.02;
  letter-spacing: -0.03em;
}

.hero h1 {
  margin: 18px 0 20px;
  font-size: clamp(3rem, 5vw, 5.1rem);
  max-width: 10ch;
}

.lede {
  max-width: 62ch;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.7;
}

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

.btn-primary,
.btn-secondary {
  padding: 14px 20px;
  border-radius: 999px;
  font-weight: 700;
}

.btn-primary {
  background: linear-gradient(135deg, var(--teal), #20b1a7);
  color: #041017;
}

.btn-secondary {
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--text);
}

.hero-metrics {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.metric {
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.metric strong {
  display: block;
  font-size: 1.55rem;
  margin-bottom: 6px;
}

.metric span {
  color: var(--muted);
  font-size: 0.86rem;
}

.hero-card {
  padding: 26px;
  position: relative;
  overflow: hidden;
}

.grid-shell {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,0.9), rgba(0,0,0,0.25));
  opacity: 0.4;
}

.signal-map {
  position: relative;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
}

.signal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--muted);
  font-size: 0.85rem;
}

.signal-core {
  position: relative;
  aspect-ratio: 1 / 1;
  margin: 10px auto;
  width: min(100%, 360px);
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.signal-ring {
  position: absolute;
  inset: 10% 10%;
  border: 1px solid rgba(31, 209, 194, 0.26);
  border-radius: 50%;
}

.signal-ring:nth-child(2) {
  inset: 22% 22%;
  border-color: rgba(108, 168, 255, 0.28);
}

.signal-ring:nth-child(3) {
  inset: 36% 36%;
  border-color: rgba(184, 162, 106, 0.34);
}

.core-node {
  position: absolute;
  inset: 42%;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(31, 209, 194, 0.25), rgba(31, 209, 194, 0.05));
  border: 1px solid rgba(31, 209, 194, 0.32);
  font-weight: 700;
}

.orbit-label {
  position: absolute;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(6, 17, 27, 0.84);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--muted);
  font-size: 0.82rem;
}

.orbit-a { top: 12%; left: 50%; transform: translateX(-50%); }
.orbit-b { right: 2%; top: 46%; transform: translateY(-50%); }
.orbit-c { bottom: 10%; left: 50%; transform: translateX(-50%); }
.orbit-d { left: 0; top: 46%; transform: translateY(-50%); }

.signal-list {
  display: grid;
  gap: 12px;
}

.signal-list div {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.signal-list span {
  color: var(--muted);
  font-size: 0.88rem;
}

.signal-list strong {
  font-size: 0.92rem;
}

main section {
  padding: 24px 0;
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.section-card {
  padding: 30px;
}

.section-card h2 {
  font-size: clamp(2rem, 3vw, 3rem);
  margin: 0 0 18px;
}

.section-card p,
.section-card li,
.brandbook-card li,
.brandbook-card p {
  color: var(--muted);
  line-height: 1.7;
}

.pillars {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.pillar {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.pillar strong {
  display: block;
  margin-bottom: 8px;
}

.partner-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.partner-tile {
  padding: 18px;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.partner-tile strong {
  display: block;
  margin-bottom: 8px;
}

.quote-card {
  padding: 34px;
  position: relative;
}

.quote-card blockquote {
  font-family: "DM Serif Display", Georgia, serif;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin: 0;
}

.quote-card p {
  margin-top: 18px;
  color: var(--muted);
  max-width: 54ch;
}

.footer-cta {
  padding: 24px 0 72px;
}

.footer-card {
  padding: 36px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(31,209,194,0.12), rgba(108,168,255,0.08)), var(--panel-strong);
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: var(--shadow);
}

.footer-card h2 {
  margin: 0 0 12px;
  font-family: "DM Serif Display", Georgia, serif;
  font-size: clamp(2rem, 3vw, 3rem);
}

.footer-card p {
  color: var(--muted);
  margin: 0 0 22px;
  max-width: 60ch;
}

.brandbook-page {
  padding: 42px 0 80px;
}

.brandbook-hero {
  padding: 38px;
  border-radius: var(--radius);
  background: var(--panel-strong);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.brandbook-hero h1 {
  margin: 12px 0 16px;
  font-size: clamp(2.6rem, 4vw, 4.3rem);
}

.meta-line {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  color: var(--muted);
  font-size: 0.92rem;
}

.brandbook-grid {
  margin-top: 24px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.brandbook-card {
  padding: 28px;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.brandbook-card h2,
.brandbook-card h3 {
  font-family: "DM Serif Display", Georgia, serif;
  letter-spacing: -0.02em;
}

.brandbook-card h2 {
  font-size: 2rem;
  margin: 0 0 16px;
}

.brandbook-card h3 {
  font-size: 1.45rem;
  margin: 28px 0 12px;
}

.brandbook-card ul {
  padding-left: 20px;
}

.brandbook-card li + li {
  margin-top: 10px;
}

.swatch-grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.swatch-card {
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.swatch-chip {
  width: 100%;
  height: 72px;
  border-radius: 14px;
  margin-bottom: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03);
}

.swatch-light {
  border-color: rgba(7, 19, 31, 0.16);
  box-shadow: inset 0 0 0 1px rgba(7, 19, 31, 0.04);
}

.swatch-card strong,
.swatch-card code,
.swatch-card span {
  display: block;
}

.swatch-card strong {
  margin-bottom: 6px;
}

.swatch-card code {
  color: var(--text);
  font-size: 0.92rem;
  margin-bottom: 6px;
}

.swatch-card span {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.brandbook-note {
  display: grid;
  gap: 18px;
}

.note-block {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.note-block strong {
  display: block;
  margin-bottom: 8px;
}

@media (max-width: 980px) {
  .hero-grid,
  .section-grid,
  .brandbook-grid {
    grid-template-columns: 1fr;
  }

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

  .partner-strip,
  .pillars {
    grid-template-columns: 1fr 1fr;
  }

  .nav-links {
    display: none;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 24px, 1180px);
  }

  .hero-copy,
  .hero-card,
  .section-card,
  .quote-card,
  .footer-card,
  .brandbook-hero,
  .brandbook-card {
    padding: 22px;
  }

  .partner-strip,
  .pillars,
  .hero-metrics {
    grid-template-columns: 1fr;
  }
}