/* ─────────────────────────────────────────────────────────────
   The Antibody Network — design refresh
   Built on the existing brand: warm gold on midnight, Cinzel
   wordmark, Cormorant Garamond italics, Jost body.
   Theming model:
     html[data-mode="dark|light"]    → bg / ink tones
     html[data-palette="gold|verdigris|lapis|ember"]
                                     → accent + glow hue
   ───────────────────────────────────────────────────────────── */

@import url("https://fonts.googleapis.com/css2?family=Cinzel:wght@400;500;600&family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;1,300;1,400;1,500&family=Jost:wght@200;300;400;500&family=JetBrains+Mono:wght@300;400;500&display=swap");

/* ─── dark mode (default) ─── */
:root,
html[data-mode="dark"] {
  --ink: #0a0806;
  --bg: #0d0b09;
  --bg2: #121008;
  --bg3: #181410;
  --bg4: #1e1a14;
  --border: #2e2618;
  --border2: #3d3120;
  --text: #ede4d6;
  --text2: #cfc3ae;
  --text3: #b0a08c;
  --muted: #7a6e5e;
  --faint: #4a4030;
  --cream: #f5edd8;
}

html[data-mode="light"] {
  --ink: #1a1410;
  --bg: #f3ecdc;
  --bg2: #ece3cf;
  --bg3: #e3d8be;
  --bg4: #d8c9a8;
  --border: #c9b88f;
  --border2: #b7a374;
  --text: #1a1410;
  --text2: #3a2f1f;
  --text3: #5b4d36;
  --muted: #877760;
  --faint: #b3a283;
  /* --cream is the "highest-contrast text" semantic across the app —
     in light mode it has to flip to ink-dark so titles and emphasis
     stay legible. Use a literal hex (#fbf6e6) only where you truly
     want a cream surface — see the floating "Press" button. */
  --cream: #0a0806;
}

/* ─── accent palettes ─── */
:root,
html[data-palette="gold"] {
  --accent: #c8a050;
  --accent-hi: #e8c070;
  --accent-lo: #a07030;
  --glow: rgba(200,160,80,.5);
}
html[data-palette="verdigris"] {
  --accent: #5fb09b;
  --accent-hi: #82d0b9;
  --accent-lo: #3d7868;
  --glow: rgba(95,176,155,.45);
}
html[data-palette="lapis"] {
  --accent: #7a9fd6;
  --accent-hi: #a4c0e6;
  --accent-lo: #4e72a4;
  --glow: rgba(122,159,214,.5);
}
html[data-palette="ember"] {
  --accent: #cf7355;
  --accent-hi: #e89878;
  --accent-lo: #9c4e34;
  --glow: rgba(207,115,85,.5);
}

html[data-mode="light"] {
  --glow: rgba(160,112,48,.18);
}
html[data-mode="light"][data-palette="gold"]      { --accent:#9c7430; --accent-hi:#b48a3e; --accent-lo:#6c4e1e; }
html[data-mode="light"][data-palette="verdigris"] { --accent:#3d7868; --accent-hi:#5fb09b; --accent-lo:#2c5447; }
html[data-mode="light"][data-palette="lapis"]     { --accent:#4e72a4; --accent-hi:#7a9fd6; --accent-lo:#345382; }
html[data-mode="light"][data-palette="ember"]     { --accent:#9c4e34; --accent-hi:#cf7355; --accent-lo:#702f1c; }

/* ───────── reset & base ───────── */
*{box-sizing:border-box;margin:0;padding:0}
html { background: var(--bg); scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: "Jost", "Helvetica Neue", Arial, sans-serif;
  font-weight: 300;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  transition: background 600ms ease, color 400ms ease;
}
::selection { background: var(--accent-lo); color: var(--cream); }
::-webkit-scrollbar { width: 3px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 2px; }
button, input { font-family: inherit; cursor: pointer; }
a { color: inherit; text-decoration: none; }

/* film grain — same idea as the original site, kept subtle */
body::before {
  content: "";
  position: fixed; inset: 0; pointer-events: none; z-index: 1000;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: .035; mix-blend-mode: overlay;
}
html[data-mode="light"] body::before { opacity: .06; mix-blend-mode: multiply; }

/* ───────── typography ───────── */
.cinzel { font-family: "Cinzel", serif; letter-spacing: 0.2em; text-transform: uppercase; }
.cormorant { font-family: "Cormorant Garamond", serif; }
.mono { font-family: "JetBrains Mono", ui-monospace, monospace; letter-spacing: 0.12em; text-transform: uppercase; font-size: 11px; color: var(--muted); }

h1, h2, h3 { font-weight: 400; }

/* ───────── nav ───────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 500;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 48px; height: 64px;
  background: color-mix(in srgb, var(--bg), transparent 12%);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid color-mix(in srgb, var(--border), transparent 40%);
}
.nav-brand {
  font-family: "Cinzel", serif;
  font-size: 13px; letter-spacing: 0.22em;
  color: var(--accent);
  text-transform: uppercase;
}
.nav-brand span { color: var(--muted); }
.nav-links { display: flex; gap: 36px; align-items: center; }
.nav-link {
  font-family: "Jost", sans-serif;
  font-size: 11px; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--muted); transition: color .2s;
  position: relative; padding: 4px 0;
  cursor: pointer;
}
.nav-link::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: 0;
  height: 1px; background: var(--accent); transition: right 300ms ease;
}
.nav-link:hover, .nav-link.active { color: var(--accent-hi); }
.nav-link:hover::after, .nav-link.active::after { right: 0; }
.nav-cta {
  background: transparent;
  border: 1px solid var(--accent-lo);
  border-radius: 3px;
  padding: 7px 16px;
  font-family: "Jost", sans-serif;
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent);
  transition: all .2s;
}
.nav-cta:hover { background: var(--accent-lo); color: var(--ink); }

/* ───────── hero ───────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 96px 24px 64px;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 38%, color-mix(in srgb, var(--accent-lo) 30%, transparent) 0%, transparent 70%),
    var(--bg);
}

/* Top zone: constellation with wordmark centered inside it */
.hero-stage {
  position: relative;
  z-index: 2;
  width: min(720px, 92vw);
  aspect-ratio: 1 / 1;
  margin: 0 auto;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.hero-stage > .constellation { position: absolute; inset: 0; }
.hero-stage .hero-mark {
  position: relative;
  z-index: 5;
  text-align: center;
  pointer-events: none;
  padding: 0 16px;
  max-width: 56%;
}
.hero-stage .hero-mark.hidden { opacity: 0; transform: scale(0.96); }
.hero-stage .hero-mark { transition: opacity 350ms ease, transform 350ms ease; }

/* Bottom zone: sub + McKenna + CTAs */
.hero-base {
  position: relative;
  z-index: 3;
  text-align: center;
  max-width: 680px;
  width: 100%;
  margin: 24px auto 0;
}

.hero-eyebrow {
  font-family: "Cinzel", serif;
  font-size: 10px; letter-spacing: 0.35em; text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 18px;
  display: inline-flex; align-items: center; gap: 14px;
}
.hero-eyebrow::before,
.hero-eyebrow::after {
  content: ""; width: 36px; height: 1px; background: var(--border2);
}

.hero-wordmark {
  font-family: "Cinzel", serif;
  font-size: clamp(28px, 5.4vw, 56px);
  font-weight: 400;
  letter-spacing: 0.07em;
  line-height: 1;
  color: var(--cream);
  margin: 0;
  text-shadow: 0 0 80px color-mix(in srgb, var(--glow), transparent 60%);
}
.hero-wordmark em {
  font-style: normal;
  color: var(--accent);
}

.hero-sub {
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 300;
  font-style: italic;
  color: var(--text3);
  line-height: 1.6;
  margin: 28px auto 36px;
  max-width: 580px;
}
.hero-sub br { display: block; }

.hero-divider {
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, transparent, var(--accent-lo), transparent);
  margin: 0 auto 28px;
}

.hero-pull {
  max-width: 560px;
  margin: 0 auto 12px;
  text-align: left;
  padding-left: 22px;
  border-left: 2px solid var(--accent-lo);
}
.hero-pull p {
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(14px, 1.6vw, 17px);
  font-style: italic;
  color: var(--text3);
  line-height: 1.8;
  margin: 0;
}
.hero-attr {
  max-width: 560px;
  margin: 0 auto 36px;
  text-align: left;
  padding-left: 24px;
  font-family: "Jost", sans-serif;
  font-size: 11px; letter-spacing: 0.12em;
  color: var(--muted);
}

.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-primary, .btn-ghost {
  display: inline-block;
  font-family: "Jost", sans-serif;
  font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  padding: 14px 28px; border-radius: 3px;
  transition: all .2s;
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
}
.btn-primary {
  background: var(--accent); color: var(--ink); font-weight: 500;
  border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-hi); border-color: var(--accent-hi); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--accent); border-color: var(--accent-lo); }
.btn-ghost:hover { background: color-mix(in srgb, var(--accent), transparent 92%); transform: translateY(-1px); }

@keyframes fadeUp { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: translateY(0); } }
.hero-stage, .hero-base > * { animation: fadeUp 1s ease both; }
.hero-stage { animation-delay: .1s; }
.hero-base > *:nth-child(1) { animation-delay: .5s; }
.hero-base > *:nth-child(2) { animation-delay: .6s; }
.hero-base > *:nth-child(3) { animation-delay: .7s; }
.hero-base > *:nth-child(4) { animation-delay: .8s; }
.hero-base > *:nth-child(5) { animation-delay: .9s; }

/* scroll hint at the bottom of hero */
.scroll-cue {
  position: absolute;
  bottom: 28px; left: 50%;
  transform: translateX(-50%);
  z-index: 4;
  font-family: "Jost", sans-serif;
  font-size: 9px; letter-spacing: 0.32em; text-transform: uppercase;
  color: var(--muted);
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  pointer-events: none;
}
.scroll-cue .line {
  width: 1px; height: 28px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: drop 2.4s ease-in-out infinite;
}
@keyframes drop {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ───────── constellation ───────── */
.constellation { position: relative; width: 100%; height: 100%; }
.constellation svg { width: 100%; height: 100%; display: block; overflow: visible; }

.cn-edge {
  fill: none;
  stroke-width: 0.4;
  opacity: 0.12;
  transition: opacity 500ms, stroke-width 500ms;
}
.cn-edge.active { opacity: 0.7; stroke-width: 0.7; }

.cn-ring {
  fill: none;
  stroke: var(--border2);
  stroke-width: 0.15;
}

.cn-node {
  cursor: pointer;
  transition: transform 400ms cubic-bezier(.2,.7,.2,1);
  transform-box: fill-box;
  transform-origin: center;
}
.cn-node:hover { transform: scale(1.18); }
.cn-node.dim { opacity: 0.28; }
.cn-glyph { transition: filter 400ms; }
.cn-node:hover .cn-glyph { filter: drop-shadow(0 0 10px currentColor) drop-shadow(0 0 22px currentColor); }
.cn-readout {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  pointer-events: none;
  width: 240px;
  min-height: 80px;
}
.cn-readout .rd-trad {
  font-family: "Cinzel", serif;
  font-size: 11px; letter-spacing: 0.24em; text-transform: uppercase;
  margin-bottom: 10px;
  transition: color 300ms;
}
.cn-readout .rd-truth {
  font-family: "Cormorant Garamond", serif;
  font-size: 18px; font-style: italic;
  color: var(--text2);
  line-height: 1.4;
}
.cn-readout .rd-hint {
  font-family: "Jost", sans-serif;
  font-size: 9px; letter-spacing: 0.34em; text-transform: uppercase;
  color: var(--muted);
}

/* ───────── traditions strip ───────── */
.traditions-sect {
  padding: 80px 48px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg2);
  position: relative;
}
.traditions-label {
  text-align: center;
  font-family: "Cinzel", serif;
  font-size: 10px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 48px;
  display: flex; align-items: center; justify-content: center; gap: 18px;
}
.traditions-label::before, .traditions-label::after {
  content: ""; width: 56px; height: 1px; background: var(--border2);
}
.traditions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 1px;
  background: var(--border);
  max-width: 1180px;
  margin: 0 auto;
}
.trad-card {
  background: var(--bg2);
  padding: 32px 20px 28px;
  text-align: center;
  cursor: pointer;
  transition: background .25s;
  position: relative;
}
.trad-card:hover { background: var(--bg3); }
.trad-card svg {
  display: block;
  margin: 0 auto 16px;
  filter: drop-shadow(0 0 6px currentColor);
  transition: filter .25s, transform .5s cubic-bezier(.2,.7,.2,1);
}
.trad-card:hover svg {
  filter: drop-shadow(0 0 16px currentColor);
  transform: rotate(-3deg) scale(1.05);
}
.trad-name {
  font-family: "Cinzel", serif;
  font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase;
  margin-bottom: 8px;
}
.trad-desc {
  font-family: "Cormorant Garamond", serif;
  font-size: 13px; font-style: italic;
  color: var(--faint);
  line-height: 1.5;
}

/* ───────── manifesto ───────── */
.manifesto {
  position: relative;
  padding: 140px 24px;
  max-width: 800px;
  margin: 0 auto;
}
.manifesto-eyebrow {
  font-family: "Cinzel", serif;
  font-size: 10px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 48px;
  display: flex; align-items: center; gap: 18px;
}
.manifesto-eyebrow::after {
  content: ""; flex: 1; height: 1px; background: var(--border);
}
.manifesto-header {
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 300;
  color: var(--cream);
  line-height: 1.15;
  margin-bottom: 48px;
  letter-spacing: -0.01em;
}
.manifesto-header em {
  color: var(--accent);
  font-style: italic;
}
.manifesto-divider {
  width: 60px; height: 1px;
  background: var(--border2, var(--border));
  margin: 56px 0;
}
.manifesto-body p {
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 300;
  line-height: 1.85;
  color: var(--text2);
  margin-bottom: 36px;
  max-width: 64ch;
}
.manifesto-body p strong { color: var(--cream); font-weight: 400; }
.manifesto-body p em { color: var(--accent); font-style: italic; }
.manifesto-mckenna {
  margin: 16px 0 44px;
  padding: 4px 0 4px 26px;
  border-left: 2px solid var(--accent-lo);
}
.manifesto-mckenna-intro {
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(15px, 1.7vw, 17px);
  color: var(--text3);
  line-height: 1.75;
  margin-bottom: 18px;
}
.manifesto-mckenna-quote {
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(18px, 2vw, 22px);
  font-style: italic;
  color: var(--text);
  line-height: 1.7;
  margin: 0 0 14px;
}
.manifesto-mckenna-attr {
  font-family: "Jost", sans-serif;
  font-size: 11px; letter-spacing: 0.14em;
  color: var(--muted);
  font-style: normal;
}
.manifesto-cta {
  margin-top: 64px;
}

/* ───────── enter cta ───────── */
.enter-cta {
  padding: 140px 24px;
  text-align: center;
  background: var(--bg2);
  border-top: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.enter-cta::before {
  /* a soft halo */
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 80% at 50% 50%, color-mix(in srgb, var(--accent-lo) 22%, transparent), transparent 70%);
  pointer-events: none;
}
.enter-cta > * { position: relative; z-index: 1; }
.cta-eyebrow {
  font-family: "Cinzel", serif;
  font-size: 10px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 24px;
  display: inline-flex; align-items: center; gap: 16px;
}
.cta-eyebrow::before, .cta-eyebrow::after {
  content: ""; width: 36px; height: 1px; background: var(--border2);
}
.cta-title {
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 300;
  color: var(--cream);
  margin-bottom: 20px;
  letter-spacing: -0.005em;
}
.cta-title em { color: var(--accent); font-style: italic; }
.cta-sub {
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(16px, 1.6vw, 18px);
  font-style: italic;
  color: var(--text3);
  margin: 0 auto 48px;
  line-height: 1.7;
  max-width: 540px;
}

/* ───────── footer ───────── */
.foot {
  border-top: 1px solid var(--border);
  padding: 36px 48px;
  display: flex; align-items: center; justify-content: space-between;
  background: var(--bg2);
  gap: 24px; flex-wrap: wrap;
}
.foot-brand {
  font-family: "Cinzel", serif;
  font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--muted);
}
.foot-copy {
  font-family: "Jost", sans-serif;
  font-size: 11px; letter-spacing: 0.06em;
  color: var(--faint);
}

/* ───────── breakpoints ───────── */
@media (max-width: 800px) {
  .nav { padding: 0 16px; }
  .nav-brand { font-size: 11px; letter-spacing: 0.16em; }
  .nav-links { overflow-x: auto; gap: 18px; scrollbar-width: none; }
  .nav-links::-webkit-scrollbar { display: none; }
  .nav-link, .nav-cta { white-space: nowrap; flex-shrink: 0; }
  .hero { padding: 100px 16px 64px; }
  .hero-net-inner { width: min(700px, 100vw); }
  .traditions-sect { padding: 64px 20px; }
  .manifesto { padding: 96px 20px; }
  .enter-cta { padding: 96px 20px; }
  .foot { padding: 28px 20px; }
}

/* ─── scroll-in animation ─── */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity 1000ms ease, transform 1000ms cubic-bezier(.2,.7,.2,1); }
.fade-in.in { opacity: 1; transform: none; }