:root {
  color-scheme: dark;
  --ink: #f8fafc;
  --muted: #a8b5c7;
  --night: #050b14;
  --panel: #0a1625;
  --panel-strong: #102238;
  --line: #20344a;
  --mint: #87f7c1;
  --sky: #7dd3fc;
  --amber: #f7cf70;
  --red: #fb7185;
  --max: 74rem;
  --radius: 1.25rem;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 20rem;
  background:
    linear-gradient(rgba(125, 211, 252, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(125, 211, 252, .035) 1px, transparent 1px),
    radial-gradient(circle at 76% 8%, rgba(125, 211, 252, .13), transparent 30rem),
    var(--night);
  background-size: 3rem 3rem, 3rem 3rem, auto, auto;
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

.draft-bar {
  padding: .45rem 1rem;
  border-bottom: 1px solid rgba(247, 207, 112, .24);
  background: rgba(247, 207, 112, .08);
  color: #fbe7ae;
  text-align: center;
  font-size: .82rem;
  font-weight: 650;
  letter-spacing: .02em;
}

a { color: inherit; }

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--sky);
  outline-offset: 4px;
}

.shell {
  width: min(calc(100% - 2rem), var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(168, 181, 199, .16);
  background: rgba(5, 11, 20, .86);
  backdrop-filter: blur(18px);
}

.nav {
  min-height: 5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  text-decoration: none;
  font-weight: 750;
  letter-spacing: -.02em;
}

.brand img { width: 2.7rem; height: 2.7rem; }
.brand span span { color: var(--mint); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  color: var(--muted);
  font-size: .95rem;
}

.nav-links a { text-decoration: none; }
.nav-links a:hover { color: var(--ink); }
.nav-links a[aria-current="page"] { color: var(--mint); }

.hero {
  padding: clamp(4.5rem, 10vw, 8.5rem) 0 5rem;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(18rem, .85fr);
  align-items: center;
  gap: clamp(3rem, 8vw, 7rem);
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--mint);
  font-size: .86rem;
  font-weight: 750;
  letter-spacing: .14em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.08;
  letter-spacing: -.045em;
}

h1 {
  max-width: 13ch;
  margin-bottom: 1.5rem;
  font-size: clamp(3.2rem, 8.2vw, 7rem);
  font-weight: 760;
}

h1 .accent {
  color: transparent;
  background: linear-gradient(100deg, var(--mint), var(--sky));
  background-clip: text;
}

.lead {
  max-width: 42rem;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.hero-card {
  position: relative;
  min-height: 25rem;
  padding: 1.25rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 2rem;
  background: linear-gradient(145deg, rgba(16, 34, 56, .94), rgba(7, 17, 31, .96));
  box-shadow: 0 2rem 5rem rgba(0, 0, 0, .3);
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: 18% -30% auto 35%;
  height: 18rem;
  border-radius: 50%;
  background: rgba(135, 247, 193, .12);
  filter: blur(3rem);
}

.signal-window {
  position: relative;
  height: 100%;
  min-height: 22.5rem;
  padding: 1.5rem;
  border: 1px solid rgba(168, 181, 199, .16);
  border-radius: 1.35rem;
  background: rgba(5, 11, 20, .68);
}

.window-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 3rem;
  color: var(--muted);
  font-size: .82rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.window-top img { width: 2.8rem; height: 2.8rem; }

.signal-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
  border-top: 1px solid rgba(168, 181, 199, .13);
}

.signal {
  width: .78rem;
  height: .78rem;
  border-radius: 50%;
  box-shadow: 0 0 1.1rem currentColor;
}

.green { color: var(--mint); background: var(--mint); }
.yellow { color: var(--amber); background: var(--amber); }
.rose { color: var(--red); background: var(--red); }
.signal-label { font-weight: 680; }
.signal-note { color: var(--muted); font-size: .9rem; }

.intro {
  padding: 5rem 0 7rem;
  border-top: 1px solid rgba(168, 181, 199, .14);
}

.principles {
  padding: 1rem 0 7rem;
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.principle {
  min-height: 13rem;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(10, 22, 37, .72);
}

.principle-number {
  display: block;
  margin-bottom: 2.5rem;
  color: var(--sky);
  font-size: .84rem;
  font-weight: 760;
  letter-spacing: .12em;
}

.principle h3 { margin-bottom: .65rem; font-size: 1.35rem; letter-spacing: -.025em; }
.principle p { margin: 0; color: var(--muted); }

.page-hero {
  padding: clamp(4rem, 9vw, 7.5rem) 0 3.5rem;
  border-bottom: 1px solid rgba(168, 181, 199, .14);
}

.page-hero h1 {
  max-width: 16ch;
  margin-bottom: 1.25rem;
  font-size: clamp(2.8rem, 7vw, 5.8rem);
}

.content-wrap {
  display: grid;
  grid-template-columns: minmax(12rem, .36fr) minmax(0, 1fr);
  gap: clamp(2rem, 7vw, 6rem);
  padding: 4rem 0 7rem;
}

.toc {
  position: sticky;
  top: 7.5rem;
  align-self: start;
  padding: 1.2rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: rgba(10, 22, 37, .68);
}

.toc strong { display: block; margin-bottom: .7rem; font-size: .88rem; letter-spacing: .06em; text-transform: uppercase; }
.toc a { display: block; padding: .34rem 0; color: var(--muted); text-decoration: none; }
.toc a:hover { color: var(--ink); }

.prose { max-width: 48rem; }
.prose section { scroll-margin-top: 7.5rem; }
.prose section + section { margin-top: 3.5rem; padding-top: 3.5rem; border-top: 1px solid rgba(168, 181, 199, .14); }
.prose h2 { margin-bottom: 1.2rem; font-size: clamp(1.8rem, 4vw, 2.65rem); letter-spacing: -.03em; }
.prose h3 { margin: 2rem 0 .65rem; font-size: 1.22rem; letter-spacing: -.02em; }
.prose p,
.prose li { color: var(--muted); }
.prose strong { color: var(--ink); }
.prose a { color: var(--sky); text-underline-offset: .18em; }
.prose ul { padding-left: 1.2rem; }
.prose li + li { margin-top: .55rem; }

.notice {
  margin: 0 0 2rem;
  padding: 1.25rem 1.4rem;
  border: 1px solid rgba(247, 207, 112, .28);
  border-radius: 1rem;
  background: rgba(247, 207, 112, .07);
  color: #fbe7ae;
}

.info-card {
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--panel);
}

.info-card p:last-child { margin-bottom: 0; }

.matrix {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.matrix article {
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--panel);
}

.matrix h3 { margin: 0 0 1rem; font-size: 1.45rem; }
.matrix ul { margin: 0; }

.contact-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  margin-top: .75rem;
  padding: .65rem 1rem;
  border: 1px solid rgba(135, 247, 193, .38);
  border-radius: .75rem;
  color: #07111f !important;
  background: var(--mint);
  font-weight: 760;
  text-decoration: none;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.5rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: .68rem 1rem;
  border: 1px solid var(--line);
  border-radius: .75rem;
  color: var(--ink);
  background: rgba(10, 22, 37, .75);
  font-weight: 760;
  text-decoration: none;
}

.button:hover { border-color: var(--sky); }

.button.primary {
  border-color: rgba(135, 247, 193, .38);
  color: #07111f;
  background: var(--mint);
}

.legal-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.legal-link-card {
  display: block;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--panel);
  text-decoration: none;
}

.legal-link-card:hover { border-color: var(--sky); }
.legal-link-card h2 { margin-bottom: .75rem; font-size: 1.55rem; }
.legal-link-card p { margin: 0; color: var(--muted); }
.legal-link-card .link-label { display: block; margin-top: 1rem; color: var(--sky); font-weight: 720; }

.footer-links { display: flex; flex-wrap: wrap; gap: 1rem; }
.footer-links a { text-decoration: none; }
.footer-links a:hover { color: var(--ink); }

.section-heading {
  display: grid;
  grid-template-columns: .75fr 1.25fr;
  gap: 3rem;
  align-items: start;
  margin-bottom: 3rem;
}

h2 { margin-bottom: 0; font-size: clamp(2.2rem, 5vw, 4rem); }
.section-copy { margin: 0; color: var(--muted); font-size: 1.1rem; }

.product-card {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 2rem;
  padding: clamp(1.5rem, 5vw, 3.5rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--panel-strong), var(--panel));
}

.product-meta { color: var(--muted); }
.product-meta strong { color: var(--ink); }
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .35rem .75rem;
  border: 1px solid rgba(135, 247, 193, .28);
  border-radius: 999px;
  color: var(--mint);
  background: rgba(135, 247, 193, .07);
  font-size: .88rem;
  font-weight: 700;
}

.features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.features li {
  padding: 1rem;
  border: 1px solid rgba(168, 181, 199, .15);
  border-radius: .9rem;
  background: rgba(5, 11, 20, .35);
}

.features strong { display: block; margin-bottom: .25rem; }
.features span { color: var(--muted); font-size: .92rem; }

.site-footer {
  padding: 2rem 0;
  border-top: 1px solid rgba(168, 181, 199, .14);
  color: var(--muted);
  font-size: .92rem;
}

.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer-row p { margin: 0; }

@media (max-width: 760px) {
  .nav { align-items: flex-start; flex-direction: column; padding-block: .8rem; gap: .55rem; }
  .nav-links { width: 100%; gap: .9rem; overflow-x: auto; padding-bottom: .25rem; white-space: nowrap; }
  .hero,
  .section-heading,
  .product-card,
  .content-wrap,
  .matrix,
  .legal-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 3.5rem; }
  .hero-card { min-height: auto; }
  .features,
  .principle-grid { grid-template-columns: 1fr; }
  .toc { position: static; }
  .footer-row { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}