@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;600&family=Source+Serif+4:opsz,wght@8..60,400;8..60,600;8..60,700&display=swap');

:root {
  --bg: #0c0e12;
  --s1: #141720;
  --s2: #1c2030;
  --s3: #252a3a;
  --bd: #2a3050;
  --tx: #d8dce8;
  --tm: #8a90a8;
  --ac: #4ecdc4;
  --red: #ff6b6b;
  --amber: #ffa94d;
  --green: #69db7c;
  --blue: #6c9bff;
  --font-display: 'Source Serif 4', Georgia, serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --font-body: 'IBM Plex Mono', monospace;
  --nav-h: 56px;
}

:root[data-theme="light"] {
  --bg: #f7f5ef;
  --s1: #ffffff;
  --s2: #f0ede4;
  --s3: #e6e2d5;
  --bd: #d6d2c4;
  --tx: #1a1d22;
  --tm: #5a6068;
  --ac: #0e6b66;
  --red: #b8341d;
  --amber: #b6741a;
  --green: #2f7d3a;
  --blue: #2a5cb8;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--tx);
  line-height: 1.6;
  font-size: 15px;
  word-spacing: -0.05em;
}

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.25; }

a { color: var(--ac); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Nav ─────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  height: var(--nav-h);
  background: var(--s1);
  border-bottom: 1px solid var(--bd);
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 13px;
  color: var(--tx);
  letter-spacing: .3px;
  text-decoration: none;
  white-space: nowrap;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--ac);
  color: var(--bg);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .5px;
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-header nav a {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--tm);
  padding: 6px 10px;
  border-radius: 5px;
  text-decoration: none;
  transition: color 150ms, background 150ms;
}

.site-header nav a:hover,
.site-header nav a.active {
  color: var(--tx);
  background: var(--s2);
}

.theme-toggle {
  background: none;
  border: 1px solid var(--bd);
  border-radius: 6px;
  padding: 5px 7px;
  cursor: pointer;
  color: var(--tm);
  display: flex;
  align-items: center;
  gap: 0;
  transition: color 150ms, border-color 150ms;
}
.theme-toggle:hover { color: var(--tx); border-color: var(--ac); }
.theme-toggle svg { display: block; }
:root[data-theme="light"] .icon-moon { display: none; }
:root:not([data-theme="light"]) .icon-sun { display: none; }

/* ── Hero ─────────────────────────────────────────── */
.advo-hero {
  padding: 64px 32px 56px;
  border-bottom: 1px solid var(--bd);
  background: linear-gradient(160deg, var(--s1) 0%, var(--s2) 100%);
}

.advo-hero .wrap { max-width: 860px; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--ac);
  margin-bottom: 16px;
}

.advo-hero h1 {
  font-size: clamp(28px, 4vw, 44px);
  letter-spacing: -.5px;
  margin-bottom: 20px;
  color: var(--tx);
}

.advo-hero h1 em {
  font-style: normal;
  color: var(--ac);
}

.lede {
  font-size: 17px;
  color: var(--tm);
  line-height: 1.7;
  max-width: 760px;
}

.lede strong { color: var(--tx); }
.lede a { color: var(--ac); }

.cta-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 6px;
  background: var(--ac);
  color: var(--bg);
  text-decoration: none;
  transition: opacity 150ms;
  border: 1px solid transparent;
}

.btn:hover { opacity: .85; text-decoration: none; }

.btn-ghost {
  background: transparent;
  color: var(--tx);
  border-color: var(--bd);
}

.btn-ghost:hover { border-color: var(--ac); color: var(--ac); opacity: 1; }

/* ── Layout helpers ───────────────────────────────── */
.wrap { max-width: 1140px; margin: 0 auto; padding: 0 32px; }
.wrap-narrow { max-width: 780px; margin: 0 auto; padding: 0 32px; }

.sec { padding: 56px 0; border-bottom: 1px solid var(--bd); }
.sec:last-child { border-bottom: none; }
.sec h2 { font-size: 26px; margin-bottom: 20px; }
.sec h3 { font-size: 18px; margin-bottom: 10px; color: var(--ac); }
.sec p { font-size: 16px; color: var(--tm); line-height: 1.7; margin-bottom: 14px; }
.sec p strong { color: var(--tx); }
.sec p:last-child { margin-bottom: 0; }

/* ── Stat grid ────────────────────────────────────── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1px;
  background: var(--bd);
  border: 1px solid var(--bd);
  border-radius: 8px;
  overflow: hidden;
  margin: 32px 0;
}

.stat {
  background: var(--s1);
  padding: 24px 20px;
}

.stat .num {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 700;
  color: var(--ac);
  line-height: 1.1;
  margin-bottom: 6px;
}

.stat .num.alert { color: var(--red); }
.stat .num.warn  { color: var(--amber); }

.stat .lbl {
  font-size: 13px;
  color: var(--tx);
  line-height: 1.45;
  margin-bottom: 5px;
}

.stat .src {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--tm);
  margin-top: 4px;
}

/* ── Project cards ────────────────────────────────── */
.proj-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.proj-card {
  display: block;
  background: var(--s1);
  border: 1px solid var(--bd);
  border-radius: 10px;
  padding: 24px;
  text-decoration: none;
  color: var(--tx);
  transition: border-color 200ms, background 200ms;
}

.proj-card:hover {
  border-color: var(--ac);
  background: var(--s2);
  text-decoration: none;
}

.proj-card .status {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 10px;
  background: rgba(78, 205, 196, .15);
  color: var(--ac);
  border: 1px solid rgba(78, 205, 196, .3);
  margin-bottom: 12px;
  letter-spacing: .5px;
}

.proj-card .status.soon {
  background: rgba(255, 169, 77, .1);
  color: var(--amber);
  border-color: rgba(255, 169, 77, .3);
}

.proj-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.proj-card p {
  font-size: 13px;
  color: var(--tm);
  line-height: 1.6;
  margin-bottom: 8px;
}

.proj-card .arrow {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ac);
  margin-top: 12px;
}

/* ── Callout ──────────────────────────────────────── */
.callout {
  border-radius: 7px;
  padding: 14px 18px;
  margin-bottom: 16px;
  font-size: 14px;
  line-height: 1.65;
}

.callout.warn {
  background: rgba(255, 169, 77, .07);
  border: 1px solid rgba(255, 169, 77, .25);
}

.callout.info {
  background: rgba(78, 205, 196, .05);
  border: 1px solid rgba(78, 205, 196, .2);
}

.callout strong { color: var(--amber); }
.callout.info strong { color: var(--ac); }

/* ── Footer ───────────────────────────────────────── */
.site-footer {
  padding: 28px 32px;
  border-top: 1px solid var(--bd);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--tm);
  background: var(--s1);
}

.site-footer a { color: var(--ac); }

/* ── Jargon tooltips (shared) ─────────────────────── */
.jargon {
  border-bottom: 1px dotted currentColor;
  cursor: help;
  color: inherit;
  text-decoration: none;
  opacity: .9;
  transition: opacity 100ms, background 100ms;
  border-radius: 2px;
  padding: 0 1px;
}

.jargon:hover, .jargon:focus {
  opacity: 1;
  background: rgba(78, 205, 196, .12);
  outline: none;
}

:root[data-theme="light"] .jargon:hover,
:root[data-theme="light"] .jargon:focus {
  background: rgba(14, 107, 102, .1);
}

.jargon-tip {
  position: fixed;
  z-index: 99999;
  max-width: 320px;
  background: var(--s2);
  border: 1px solid var(--bd);
  border-radius: 8px;
  padding: 12px 15px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--tx);
  box-shadow: 0 8px 28px rgba(0,0,0,.45);
  display: none;
  pointer-events: none;
}

.jargon-tip.is-active { pointer-events: auto; }

.jargon-tip .jt-term {
  font-weight: 700;
  color: var(--ac);
  margin-bottom: 5px;
  font-size: 12px;
  font-family: var(--font-mono);
  letter-spacing: .5px;
  text-transform: uppercase;
}

.jargon-tip .jt-body {
  font-size: 12px;
  color: var(--tm);
  line-height: 1.6;
}

.jargon-tip .jt-body a { color: var(--ac); pointer-events: auto; }

.jargon-tip .jt-footer {
  margin-top: 8px;
  padding-top: 7px;
  border-top: 1px solid var(--bd);
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--tm);
}

/* ── Glossary section ─────────────────────────────── */
.glossary-section {
  padding: 48px 0 56px;
  border-top: 1px solid var(--bd);
}

.glossary-section .wrap h2 {
  font-size: 22px;
  margin-bottom: 6px;
}

.glossary-section .wrap .ssub {
  font-size: 13px;
  color: var(--tm);
  margin-bottom: 28px;
  font-family: var(--font-mono);
}

.glossary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 0 36px;
  column-gap: 48px;
}

.glossary-grid dt {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--ac);
  font-size: 13px;
  padding: 8px 0 2px;
  border-top: 1px solid rgba(42, 48, 80, .5);
  scroll-margin-top: calc(var(--nav-h) + 16px);
  border-radius: 3px;
  transition: background 250ms, padding-left 200ms;
}

.glossary-grid dd {
  color: var(--tm);
  font-size: 13px;
  line-height: 1.65;
  margin: 0 0 6px;
  padding-bottom: 6px;
  border-radius: 3px;
  transition: background 250ms;
}

.glossary-grid dd a { color: var(--ac); }

@keyframes glossFlash {
  0%   { background: rgba(78, 205, 196, .55); box-shadow: 0 0 0 4px rgba(78, 205, 196, .3); }
  60%  { background: rgba(78, 205, 196, .18); }
  100% { background: transparent; box-shadow: none; }
}

.glossary-grid dt.gloss-flash,
.glossary-grid dd.gloss-flash {
  animation: glossFlash 1800ms ease-out;
}

.glossary-grid dt.gloss-flash { padding-left: 8px; color: var(--tx); }

:root[data-theme="light"] .glossary-grid dt { border-top-color: rgba(214, 210, 196, .8); }

/* ── Responsive ───────────────────────────────────── */
@media (max-width: 720px) {
  .site-header { padding: 0 16px; gap: 8px; }
  .wrap, .wrap-narrow { padding: 0 16px; }
  .advo-hero { padding: 40px 16px 36px; }
  .sec { padding: 36px 0; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .proj-grid { grid-template-columns: 1fr; }
  .glossary-grid { grid-template-columns: 1fr; }
  /* Hide brand label text; keep the "LG" mark */
  .brand { font-size: 0; gap: 0; }
  .brand-mark { font-size: 11px; }
  /* Tighten nav links so they don't overflow */
  .site-header nav a { padding: 6px 4px; }
}