/* DNA Vault — public site design system (V2) */
:root {
  --ink: #e8f2ee;
  --ink-muted: rgba(232, 242, 238, 0.68);
  --moss: #3ecf8e;
  --leaf: #66ffc8;
  --cyan: #4aa3ff;
  --violet: #8b7cf7;
  --amber: #ffc857;
  --sand: #0b1412;
  --paper: #060a09;
  --mist: #12201c;
  --line: rgba(126, 168, 154, 0.2);
  --panel: rgba(12, 22, 20, 0.88);
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --font-display: "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-body: "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
  --space-1: 0.35rem;
  --space-2: 0.75rem;
  --space-3: 1.25rem;
  --space-4: 2rem;
  --space-5: 3.5rem;
  --space-6: 5.5rem;
  --radius: 0.45rem;
  --max: 1120px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-body);
  background: var(--paper);
  min-height: 100vh;
  line-height: 1.55;
}
a { color: var(--moss); text-decoration: none; }
a:hover { color: var(--amber); }
img { max-width: 100%; }

.site-atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(900px 500px at 8% -8%, rgba(62, 207, 142, 0.14), transparent 58%),
    radial-gradient(700px 420px at 92% 8%, rgba(74, 163, 255, 0.09), transparent 55%),
    radial-gradient(600px 380px at 50% 100%, rgba(139, 124, 247, 0.06), transparent 50%),
    linear-gradient(165deg, #060a09 0%, #0b1412 48%, #050908 100%);
}

.site-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem clamp(1rem, 5vw, 4rem);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  backdrop-filter: blur(10px);
  background: rgba(6, 10, 9, 0.82);
  z-index: 20;
}
.brand-mark {
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ink);
  font-size: 1.05rem;
}
.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.15rem;
  align-items: center;
  justify-content: flex-end;
}
.site-nav a {
  color: rgba(232, 242, 238, 0.78);
  font-size: 0.92rem;
  font-weight: 500;
}
.site-nav a:hover,
.site-nav a[aria-current="page"] { color: var(--leaf); }
.site-nav .nav-cta {
  border: 1px solid rgba(62, 207, 142, 0.45);
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius);
  color: var(--leaf);
}

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

.hero-site {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
  padding: clamp(2.5rem, 7vw, 5.5rem) 0 clamp(3rem, 6vw, 4.5rem);
  min-height: calc(100vh - 4.5rem);
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #7a9a90;
  margin: 0 0 0.85rem;
}
.hero-site h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  max-width: 14ch;
}
.lede {
  margin: 0 0 1.5rem;
  max-width: 42ch;
  color: var(--ink-muted);
  font-size: 1.08rem;
}
.disclaimer {
  margin: 1rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: #7a9a90;
}
.cta-row { display: flex; flex-wrap: wrap; gap: 0.75rem; }

.btn {
  appearance: none;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 0.8rem 1.2rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: transform 0.18s ease, background 0.18s ease, color 0.18s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn.primary { background: var(--moss); color: #04110c; }
.btn.primary:hover { background: var(--leaf); color: #04110c; }
.btn.ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}
.btn.ghost:hover { border-color: var(--moss); color: var(--leaf); }

.flow-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 0.6rem;
  padding: 1.25rem 1.35rem;
  box-shadow: var(--shadow);
}
.flow-card h2 {
  margin: 0 0 1rem;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #9ec4b8;
  font-weight: 600;
}
.flow-list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 0.86rem;
}
.flow-list li {
  display: grid;
  grid-template-columns: 1.2rem 1fr;
  gap: 0.65rem;
  padding: 0.45rem 0;
  border-top: 1px solid rgba(126, 168, 154, 0.12);
  color: var(--ink);
}
.flow-list li:first-child { border-top: 0; }
.flow-list .arrow { color: var(--amber); }

.section {
  padding: var(--space-5) 0;
  border-top: 1px solid var(--line);
}
.section h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  letter-spacing: -0.02em;
  max-width: 22ch;
}
.section .section-lede {
  margin: 0 0 1.75rem;
  max-width: 52ch;
  color: var(--ink-muted);
}
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.15rem 1.2rem;
}
.card h3 {
  margin: 0 0 0.45rem;
  font-size: 1.05rem;
}
.card p {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.95rem;
}
.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--line);
  padding: 0.2rem 0.45rem;
  border-radius: 0.25rem;
  color: #9ec4b8;
  margin-bottom: 0.55rem;
}
.badge.available { color: var(--moss); border-color: rgba(62, 207, 142, 0.4); }
.badge.development { color: var(--cyan); border-color: rgba(74, 163, 255, 0.4); }
.badge.planned { color: var(--amber); border-color: rgba(255, 200, 87, 0.35); }
.badge.vision { color: var(--violet); border-color: rgba(139, 124, 247, 0.4); }

.pipeline-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
}
.pipeline-strip span {
  padding: 0.35rem 0.55rem;
  background: rgba(62, 207, 142, 0.1);
  border-radius: 0.25rem;
  border: 1px solid rgba(62, 207, 142, 0.18);
}
.pipeline-strip .sep { background: transparent; border: 0; color: var(--amber); padding: 0 0.1rem; }

.page-hero {
  padding: clamp(2.5rem, 6vw, 4rem) 0 1.5rem;
}
.page-hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  letter-spacing: -0.02em;
  max-width: 20ch;
}
.page-hero p {
  margin: 0;
  max-width: 55ch;
  color: var(--ink-muted);
}

.layer-list { display: grid; gap: 0.85rem; }
.layer {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 1rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(12, 22, 20, 0.55);
}
.layer .idx {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--leaf);
  letter-spacing: 0.06em;
}
.layer h3 { margin: 0 0 0.3rem; font-size: 1.02rem; }
.layer p, .layer ul { margin: 0; color: var(--ink-muted); font-size: 0.92rem; }
.layer ul { padding-left: 1.1rem; }

.site-foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.75rem clamp(1rem, 5vw, 4rem) 2.25rem;
  border-top: 1px solid var(--line);
  color: rgba(232, 242, 238, 0.55);
  font-size: 0.88rem;
}
.site-foot nav { display: flex; flex-wrap: wrap; gap: 0.85rem 1.1rem; }

.contact-form {
  display: grid;
  gap: 0.85rem;
  max-width: 32rem;
}
.contact-form label { display: grid; gap: 0.35rem; font-size: 0.92rem; }
.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 0.7rem 0.8rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink);
  font: inherit;
}
.contact-form textarea { min-height: 8rem; resize: vertical; }
.form-note {
  font-size: 0.85rem;
  color: var(--ink-muted);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
.data-table th,
.data-table td {
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--line);
  text-align: left;
}
.data-table th {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #9ec4b8;
  background: rgba(12, 22, 20, 0.65);
}
.data-table td { color: var(--ink-muted); }
.data-table .empty { text-align: center; color: #7a9a90; font-style: italic; }

.code-block {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  background: rgba(12, 22, 20, 0.75);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  overflow-x: auto;
  color: var(--ink);
  line-height: 1.6;
}
.code-block .comment { color: #7a9a90; }

.roadmap-phase { margin-bottom: 2.5rem; }
.roadmap-phase h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.3rem, 2.5vw, 1.75rem);
  letter-spacing: -0.01em;
}
.roadmap-items { display: grid; gap: 0.75rem; }

.phase-list { display: grid; gap: 0.85rem; }
.phase {
  display: grid;
  grid-template-columns: 6rem 1fr;
  gap: 1rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(12, 22, 20, 0.55);
}
.phase .idx {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--cyan);
  letter-spacing: 0.06em;
}
.phase h3 { margin: 0 0 0.3rem; font-size: 1.02rem; }
.phase p { margin: 0; color: var(--ink-muted); font-size: 0.92rem; }

.arch-diagram {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  background: rgba(12, 22, 20, 0.75);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  overflow-x: auto;
  line-height: 1.7;
  color: var(--ink-muted);
}
.arch-diagram .arrow { color: var(--amber); }

@media (max-width: 900px) {
  .hero-site, .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .site-nav { gap: 0.65rem 0.9rem; }
  .layer, .phase { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .btn:hover { transform: none; }
  html { scroll-behavior: auto; }
}