:root{
  --bg: #0A0D12;
  --panel: #12161D;
  --elevated: #1A2029;
  --line: #262D38;
  --text: #E9E6DE;
  --text-dim: #9AA1AC;
  --gold: #C68A3F;
  --gold-dim: #8A6230;
  --mint: #6FE3C4;
  --slate: #7C8798;
  --display: 'Space Grotesk', sans-serif;
  --body: 'Inter', sans-serif;
  --mono: 'IBM Plex Mono', monospace;
}

*{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; }
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--body);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}

a{ color:inherit; text-decoration:none; }
img,svg{ display:block; max-width:100%; }

.wrap{ max-width:1120px; margin:0 auto; padding:0 32px; }

body::before{
  content:"";
  position:fixed; inset:0; z-index:-1;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity:0.05;
  pointer-events:none;
}

/* ---------- header ---------- */
header{
  position:sticky; top:0; z-index:50;
  background:rgba(10,13,18,0.88);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding:18px 32px;
}
.logo{
  font-family:var(--display); font-weight:700; font-size:19px;
  letter-spacing:0.02em; display:flex; align-items:center; gap:10px;
}
.logo-mark{ height:24px; width:auto; display:block; }
.footer-mark{ height:14px; width:auto; opacity:0.75; display:block; }
.foot-brand{ display:flex; align-items:center; gap:9px; }
.logo .rev{ font-family:var(--mono); font-size:11px; color:var(--gold); font-weight:400; letter-spacing:0.08em; }
nav.links{ display:flex; gap:32px; font-size:14px; color:var(--text-dim); }
nav.links a{ transition:color .15s; }
nav.links a:hover, nav.links a.active{ color:var(--text); }
.nav-cta{
  font-family:var(--mono); font-size:12px; letter-spacing:0.04em;
  border:1px solid var(--gold-dim); color:var(--gold);
  padding:9px 16px; border-radius:3px; transition:all .15s;
  white-space:nowrap;
}
.nav-cta:hover{ background:var(--gold); color:#0A0D12; border-color:var(--gold); }

@media (max-width:760px){
  nav.links{ display:none; }
}

/* ---------- hero ---------- */
.hero{ padding:96px 0 72px; border-bottom:1px solid var(--line); position:relative; }
.eyebrow{
  font-family:var(--mono); font-size:12px; letter-spacing:0.12em;
  color:var(--gold); text-transform:uppercase; margin-bottom:20px;
  display:flex; align-items:center; gap:10px;
}
.eyebrow::before{ content:"◆"; font-size:9px; }
.eyebrow.mint{ color:var(--mint); }
.eyebrow.mint::before{ color:var(--mint); }

.hero-grid{ display:grid; grid-template-columns:1.05fr 0.95fr; gap:56px; align-items:center; }
h1{
  font-family:var(--display); font-weight:600; font-size:52px;
  line-height:1.08; letter-spacing:-0.01em; margin-bottom:24px;
}
h1 .accent{ color:var(--gold); }
h1 .accent-mint{ color:var(--mint); }
.hero p.lede{ font-size:18px; color:var(--text-dim); max-width:540px; margin-bottom:36px; }
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; }

.btn{
  font-family:var(--mono); font-size:13px; letter-spacing:0.03em;
  padding:13px 22px; border-radius:3px; transition:all .15s; display:inline-block;
}
.btn-primary{ background:var(--gold); color:#0A0D12; font-weight:500; }
.btn-primary:hover{ background:#DDA458; }
.btn-secondary{ border:1px solid var(--line); color:var(--text); }
.btn-secondary:hover{ border-color:var(--text-dim); }

@media (max-width:900px){
  .hero-grid{ grid-template-columns:1fr; }
  h1{ font-size:38px; }
}

/* ---------- generic diagram helpers ---------- */
.diagram-wrap{ position:relative; }
.diagram-caption{
  font-family:var(--mono); font-size:11px; color:var(--text-dim);
  text-align:center; margin-top:14px; letter-spacing:0.04em;
}
.bondwire{ stroke:#4A5260; stroke-width:1.4; fill:none; transition: stroke .2s, stroke-width .2s; }
.pad-group{ cursor:default; }
.pad-group:hover .bondwire{ stroke:var(--mint); stroke-width:2; }
.pad-group:hover .pad-label{ fill:var(--mint); }
.pad-group:hover .pad-dot{ fill:var(--mint); }
.pad-label{ font-family:var(--mono); font-size:10.5px; fill:var(--text-dim); letter-spacing:0.03em; transition:fill .2s; }
.pad-dot{ fill:#4A5260; transition:fill .2s; }

@media (prefers-reduced-motion:no-preference){
  .pkg-pulse{ animation:pulse 3.2s ease-in-out infinite; }
  .flow-pulse{ animation:flow 2.6s linear infinite; }
  .orbit-ring{ transform-box: fill-box; transform-origin:50% 50%; animation: orbit-spin 26s linear infinite; }
  .orbit-ring-rev{ transform-box: fill-box; transform-origin:50% 50%; animation: orbit-spin-rev 34s linear infinite; }
  .float-slow{ animation: float-bob 6s ease-in-out infinite; }
  .core-breathe{ transform-box: fill-box; transform-origin:50% 50%; animation: breathe 3.4s ease-in-out infinite; }
  @keyframes pulse{ 0%,100%{ opacity:0.35; } 50%{ opacity:0.9; } }
  @keyframes flow{ to{ stroke-dashoffset:-24; } }
  @keyframes orbit-spin{ to{ transform:rotate(360deg); } }
  @keyframes orbit-spin-rev{ to{ transform:rotate(-360deg); } }
  @keyframes float-bob{ 0%,100%{ transform:translateY(0); } 50%{ transform:translateY(-7px); } }
  @keyframes breathe{ 0%,100%{ opacity:0.7; transform:scale(1); } 50%{ opacity:1; transform:scale(1.08); } }
}

/* ---------- sections ---------- */
section{ padding:88px 0; border-bottom:1px solid var(--line); }
.section-head{ margin-bottom:52px; max-width:640px; }
.section-head .eyebrow{ margin-bottom:14px; }
h2{ font-family:var(--display); font-weight:600; font-size:32px; letter-spacing:-0.01em; margin-bottom:14px; }
.section-head p{ color:var(--text-dim); font-size:16px; }

/* ---------- pillar sections (home) ---------- */
.pillar{ display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:start; }
.pillar-text p{ color:var(--text-dim); font-size:15.5px; margin-bottom:16px; }
.pillar-text .eyebrow{ margin-bottom:16px; }
.pillar-text h2{ margin-bottom:18px; }

@media (max-width:860px){ .pillar{ grid-template-columns:1fr; } }

/* spec / benchmark strip */
.spec-table{ border:1px solid var(--line); }
.spec-row{
  display:flex; justify-content:space-between; padding:14px 20px;
  border-bottom:1px solid var(--line); font-size:13.5px;
}
.spec-row:last-child{ border-bottom:none; }
.spec-row .k{ font-family:var(--mono); font-size:12px; color:var(--text-dim); letter-spacing:0.04em; }
.spec-row .v{ font-family:var(--mono); font-size:12.5px; color:var(--mint); }

/* partner callout */
.partner-box{
  border:1px solid var(--line); background:var(--panel); padding:22px 24px;
  display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap;
  margin-top:8px;
}
.partner-box .label{ font-family:var(--mono); font-size:11px; color:var(--slate); letter-spacing:0.06em; margin-bottom:6px; }
.partner-box .name{ font-family:var(--display); font-weight:600; font-size:16px; }
.partner-box a.btn-secondary{ font-size:12px; padding:10px 16px; }

/* ---------- focus grid (kept for reuse) ---------- */
.focus-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line); border:1px solid var(--line); }
.focus-card{ background:var(--panel); padding:32px 28px; }
.focus-num{ font-family:var(--mono); font-size:12px; color:var(--gold); margin-bottom:20px; letter-spacing:0.06em; }
.focus-card h3{ font-family:var(--display); font-weight:600; font-size:19px; margin-bottom:12px; }
.focus-card p{ color:var(--text-dim); font-size:14.5px; }
.focus-icon{ width:34px; height:34px; margin-bottom:22px; }
@media (max-width:800px){ .focus-grid{ grid-template-columns:1fr; } }

/* ---------- revision history ---------- */
.rev-table{ border:1px solid var(--line); }
.rev-row{
  display:grid; grid-template-columns:90px 220px 1fr;
  gap:24px; padding:22px 24px; border-bottom:1px solid var(--line);
  align-items:baseline;
}
.rev-row:last-child{ border-bottom:none; }
.rev-row.current{ background:var(--elevated); }
.rev-tag{ font-family:var(--mono); font-size:13px; color:var(--gold); font-weight:500; }
.rev-row.current .rev-tag{ color:var(--mint); }
.rev-name{ font-family:var(--display); font-size:16px; font-weight:600; }
.rev-desc{ color:var(--text-dim); font-size:14.5px; }
.rev-desc .status{ font-family:var(--mono); font-size:10.5px; color:var(--mint); letter-spacing:0.05em; margin-left:10px; }
@media (max-width:700px){ .rev-row{ grid-template-columns:1fr; gap:6px; } }

/* ---------- capabilities (pinout-style) ---------- */
.pin-grid{ display:grid; grid-template-columns:repeat(5,1fr); gap:1px; background:var(--line); border:1px solid var(--line); }
.pin-card{ background:var(--panel); padding:26px 20px; text-align:left; }
.pin-idx{ font-family:var(--mono); font-size:11px; color:var(--text-dim); margin-bottom:14px; }
.pin-card h4{ font-family:var(--display); font-size:14.5px; font-weight:600; margin-bottom:10px; letter-spacing:0.01em; }
.pin-card p{ font-size:13px; color:var(--text-dim); }
@media (max-width:900px){ .pin-grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:520px){ .pin-grid{ grid-template-columns:1fr; } }

/* ---------- contact ---------- */
.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:start; }
.contact h2{ margin-bottom:18px; }
.contact p.lede{ color:var(--text-dim); font-size:16px; max-width:440px; margin-bottom:32px; }
.contact-panel{ background:var(--panel); border:1px solid var(--line); padding:32px; }
.contact-row{ display:flex; justify-content:space-between; padding:14px 0; border-bottom:1px solid var(--line); font-size:14px; }
.contact-row:last-child{ border-bottom:none; }
.contact-row .k{ color:var(--text-dim); font-family:var(--mono); font-size:12px; letter-spacing:0.04em; }
.contact-row .v a:hover{ color:var(--gold); }
@media (max-width:800px){ .contact-grid{ grid-template-columns:1fr; } }

/* ---------- footer ---------- */
footer{ padding:36px 0; }
.foot-row{
  display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px;
  font-family:var(--mono); font-size:12px; color:var(--text-dim);
}
.foot-row .socials{ display:flex; gap:20px; }
.foot-row .socials a:hover{ color:var(--gold); }
.foot-legal{ display:flex; gap:20px; }
.foot-legal a:hover{ color:var(--gold); }

/* ---------- about intro ---------- */
.about-intro p{ color:var(--text-dim); font-size:16px; max-width:720px; margin-bottom:16px; }

/* ---------- legal / policy documents ---------- */
.legal-meta{
  border:1px solid var(--line); background:var(--panel); padding:20px 24px;
  font-size:13px; color:var(--text-dim); margin-top:8px; max-width:720px;
}
.legal-meta .k{ font-family:var(--mono); font-size:11px; color:var(--gold); letter-spacing:0.06em; margin-right:10px; }
.legal-body{ max-width:720px; }
.legal-body h2{ font-size:22px; margin-top:0; margin-bottom:14px; }
.legal-section{ padding:36px 0; border-bottom:1px solid var(--line); }
.legal-section:last-child{ border-bottom:none; }
.legal-body p{ color:var(--text-dim); font-size:15px; margin-bottom:14px; }
.legal-body p:last-child{ margin-bottom:0; }
.legal-body ul{ color:var(--text-dim); font-size:15px; margin:0 0 14px 20px; }
.legal-body ul li{ margin-bottom:10px; }
.legal-body ul li:last-child{ margin-bottom:0; }
.legal-body strong{ color:var(--text); font-weight:600; }
.legal-body a{ color:var(--gold); text-decoration:underline; }
.legal-toc{ border:1px solid var(--line); }
.legal-toc a{
  display:flex; justify-content:space-between; padding:14px 20px;
  border-bottom:1px solid var(--line); font-size:13.5px; color:var(--text-dim);
  transition:color .15s;
}
.legal-toc a:last-child{ border-bottom:none; }
.legal-toc a:hover{ color:var(--text); }
.legal-toc a .num{ font-family:var(--mono); font-size:12px; color:var(--gold); }