/* ── Institutional quant layer (overrides marketing chrome) ── */

:root {
  --bg: #0a0b0d;
  --bg-elevated: #0e1014;
  --bg-card: #111318;
  --border: rgba(255, 255, 255, 0.07);
  --border-hover: rgba(255, 255, 255, 0.14);
  --border-glow: rgba(139, 156, 179, 0.35);
  --text: #eceff2;
  --text-muted: #939aa3;
  --text-dim: #5c636c;
  --accent: #8b9cb3;
  --accent-bright: #a8b8cc;
  --accent-dim: rgba(139, 156, 179, 0.1);
  --accent-gold: #bfa56e;
  --accent-gold-dim: rgba(191, 165, 110, 0.12);
  --cyan: #7a9eae;
  --cyan-dim: rgba(122, 158, 174, 0.1);
  --terminal-green: #8fa88a;
  --terminal-green-bright: #a8c4a0;
  --font-serif: "Libre Baskerville", Georgia, serif;
  --radius: 4px;
  --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.45);
}

.site-header {
  background: rgba(10, 11, 13, 0.88);
  border-bottom: 1px solid var(--border);
  box-shadow: none;
}

.logo-mark {
  position: relative;
  width: 22px;
  height: 22px;
  border: none;
  border-radius: 0;
  box-shadow: none;
  font-size: 0;
  color: transparent;
  background:
    linear-gradient(var(--accent) 0 0) 0 50% / 2px 100% no-repeat,
    linear-gradient(var(--accent) 0 0) 50% 50% / 2px 72% no-repeat,
    linear-gradient(var(--accent-gold) 0 0) 100% 50% / 2px 88% no-repeat;
}

.logo-mark::before,
.logo-mark::after {
  content: none;
}

.logo:hover .logo-mark {
  box-shadow: none;
  filter: brightness(1.15);
}

.logo-text {
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.site-nav {
  gap: 1.75rem;
}

.site-nav a {
  font-size: 0.8rem;
  letter-spacing: 0.04em;
}

.site-nav a.active::after {
  background: var(--accent-gold);
  box-shadow: none;
  height: 1px;
}

.hero {
  min-height: calc(88vh - var(--nav-h));
  padding: clamp(4rem, 12vh, 8rem) 0 clamp(3rem, 8vh, 5rem);
}

.hero-eyebrow {
  color: var(--accent);
  text-shadow: none;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4.2vw, 3.15rem);
  font-weight: 400;
  line-height: 1.18;
  letter-spacing: -0.02em;
  max-width: 18ch;
  color: var(--text);
  background: none;
  -webkit-text-fill-color: unset;
}

.hero-lead {
  font-size: clamp(0.95rem, 1.8vw, 1.05rem);
  line-height: 1.7;
  max-width: 48ch;
  margin-bottom: 2.25rem;
}

.hero-status {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-top: 2.5rem;
}

.hero-status span {
  color: var(--terminal-green);
}

.btn {
  border-radius: var(--radius);
  box-shadow: none;
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn:hover {
  transform: none;
  box-shadow: none;
}

.btn-primary {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}

.btn-primary:hover {
  background: #fff;
  color: var(--bg);
  box-shadow: none;
}

.btn-ghost:hover {
  background: var(--accent-dim);
  border-color: var(--border-hover);
  box-shadow: none;
}

.section {
  border-top: 1px solid var(--border);
  padding: clamp(3.5rem, 8vh, 6rem) 0;
}

.section::before {
  display: none;
}

.section-label {
  color: var(--accent);
  opacity: 1;
  font-size: 0.65rem;
  letter-spacing: 0.16em;
}

.section h2,
.page-header h1 {
  font-family: var(--font-serif);
  font-weight: 400;
  color: var(--text);
  background: none;
  -webkit-text-fill-color: unset;
  letter-spacing: -0.02em;
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0;
  border: 1px solid var(--border);
  margin-top: 2rem;
}

.principle {
  padding: 1.5rem 1.35rem;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.principles-grid .principle:nth-child(4n) { border-right: none; }
@media (max-width: 900px) {
  .principles-grid .principle { border-right: none; }
}

.principle-num {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  color: var(--accent-gold);
  margin-bottom: 0.65rem;
}

.principle h3 {
  margin: 0 0 0.5rem;
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.01em;
}

.principle p {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--text-muted);
}

.spec-sheet {
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  margin-top: 2rem;
}

.spec-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 1.5rem;
  padding: 1rem 1.35rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.82rem;
}

.spec-row:last-child { border-bottom: none; }

.spec-key {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.spec-val {
  color: var(--text-muted);
  line-height: 1.55;
}

.validation-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 2rem;
  font-size: 0.82rem;
}

.validation-table th,
.validation-table td {
  text-align: left;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border);
}

.validation-table th {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 500;
}

.validation-table td {
  color: var(--text-muted);
}

.validation-table td:first-child {
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.validation-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.validation-table a {
  color: var(--accent);
}

.validation-table a:hover {
  color: var(--text);
}

.card-grid {
  background: var(--border);
  border-color: var(--border);
  box-shadow: none;
}

.card {
  background: var(--bg-card);
}

.card:hover {
  background: var(--bg-elevated);
  box-shadow: none;
}

.card-tag {
  color: var(--accent-gold);
  text-shadow: none;
}

.card-link:hover {
  color: var(--accent);
  text-shadow: none;
}

.metric-item {
  border-top-color: var(--border);
}

.metric-item:hover {
  border-top-color: var(--accent);
}

.site-footer {
  border-top: 1px solid var(--border);
  background: transparent;
  margin-top: 0;
}

.site-footer::before {
  display: none;
}

.footer-grid {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-entity {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.footer-disclaimer {
  font-size: 0.72rem;
  line-height: 1.55;
  color: var(--text-dim);
  max-width: 62ch;
}

.footer-meta {
  font-size: 0.72rem;
  margin-top: 0.5rem;
}

.footer-meta a {
  color: var(--text-dim);
}

.footer-meta a:hover {
  color: var(--accent);
}

.reveal {
  transition-duration: 0.5s;
  transition-delay: 0ms !important;
}

.page-header {
  padding-top: clamp(3.5rem, 10vh, 5.5rem);
}

.memo-block {
  border-left: 2px solid var(--accent-gold);
  padding: 0 0 0 1.25rem;
  margin: 2rem 0;
}

.memo-block p {
  color: var(--text-muted);
  margin: 0 0 1rem;
  line-height: 1.7;
  max-width: 58ch;
}

.contact-panel {
  border: 1px solid var(--border);
  padding: 2rem;
  max-width: 520px;
  margin-top: 2rem;
  background: var(--bg-elevated);
}

.contact-panel p {
  margin: 0 0 1rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.65;
}

.contact-panel a {
  color: var(--accent);
}

/* NVE intro — scroll hint only (no CTA button) */
.nve-intro-scroll-hint {
  color: var(--text-dim);
}

/* Subtle ambient — institutional pages */
body.page-home::before,
body.page-inner::before {
  background:
    radial-gradient(ellipse 80% 50% at 20% -5%, rgba(139, 156, 179, 0.06), transparent 55%),
    radial-gradient(ellipse 60% 40% at 95% 10%, rgba(191, 165, 110, 0.04), transparent 50%);
}

body.page-home::after,
body.page-inner::after {
  opacity: 0.35;
}

.page-nve .site-header {
  background: rgba(10, 11, 13, 0.92);
}

.page-nve::before {
  background:
    radial-gradient(ellipse 55% 45% at 50% 55%, rgba(122, 158, 174, 0.05), transparent 65%),
    radial-gradient(ellipse 40% 35% at 20% 80%, rgba(139, 156, 179, 0.06), transparent 60%);
}

.page-nve .page-header-compact h1 {
  font-family: var(--font-serif);
  font-weight: 400;
  background: none;
  -webkit-text-fill-color: unset;
  color: var(--text);
}

.terminal-wrap {
  border-radius: var(--radius);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.06),
    0 8px 32px rgba(0, 0, 0, 0.5);
}

.nav-glass-bubble {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: none;
}

.nav-glass-bubble::before,
.nav-glass-bubble::after {
  opacity: 0.35;
}

@media (max-width: 768px) {
  .site-nav { gap: 0; }
  .spec-row { grid-template-columns: 1fr; gap: 0.35rem; }
}