:root {
  --bg: #0A0A0B;
  --bg-2: #0E0E10;
  --panel: #111114;
  --panel-2: #16161A;
  --border: #1F1F24;
  --border-2: #2A2A30;
  --ink: #ECEAE3;
  --ink-dim: #B8B5AC;
  --muted: #6E6C66;
  --faint: #3A3934;
  --ember: oklch(0.72 0.17 38);
  --ember-dim: oklch(0.55 0.14 38);
  --ember-soft: oklch(0.72 0.17 38 / 0.12);
  --good: oklch(0.74 0.14 150);
  --warn: oklch(0.78 0.16 75);
  --bad: oklch(0.65 0.20 25);

  --font-sans: 'Geist', ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-mono: 'Geist Mono', ui-monospace, SFMono-Regular, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--ink); }
body {
  font-family: var(--font-sans);
  font-feature-settings: "ss01", "cv11";
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }

/* Subtle grain layer */
body::before {
  content: "";
  position: fixed; inset: 0; pointer-events: none; z-index: 1;
  background-image: radial-gradient(rgba(255,255,255,0.018) 1px, transparent 1px);
  background-size: 3px 3px;
  mix-blend-mode: overlay;
}

.mono { font-family: var(--font-mono); letter-spacing: 0; }
.cap  { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.ink-dim { color: var(--ink-dim); }
.muted { color: var(--muted); }
.ember { color: var(--ember); }

.container { max-width: 1180px; margin: 0 auto; padding: 0 32px; position: relative; z-index: 2; }
@media (max-width: 720px) { .container { padding: 0 20px; } }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  background: color-mix(in oklab, var(--bg) 78%, transparent);
  border-bottom: 1px solid color-mix(in oklab, var(--border) 75%, transparent);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.nav-brand { display: flex; align-items: center; gap: 10px; }
.nav-brand .wm { font-weight: 600; letter-spacing: -0.025em; font-size: 17px; }
.nav-links { display: flex; align-items: center; gap: 26px; font-size: 14px; color: var(--ink-dim); }
.nav-links a:hover { color: var(--ink); }
.nav-cta { display: flex; align-items: center; gap: 8px; }
@media (max-width: 720px) { .nav-links { display: none; } }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 14px; border-radius: 8px; font-size: 14px; font-weight: 500;
  border: 1px solid transparent;
  transition: background .15s ease, border-color .15s ease, transform .12s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { background: #fff; }
.btn-ghost { color: var(--ink); border-color: var(--border-2); background: transparent; }
.btn-ghost:hover { border-color: #3a3a44; background: var(--panel); }
.btn-link { color: var(--ink-dim); padding: 6px 0; }
.btn-link:hover { color: var(--ink); }
.btn-sm { padding: 6px 10px; font-size: 13px; }

/* ---------- Hero ---------- */
.hero { padding: 96px 0 56px; position: relative; }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0,1fr) minmax(0,520px);
  gap: 56px;
  align-items: center;
}
@media (max-width: 980px) { .hero-grid { grid-template-columns: 1fr; gap: 40px; } }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 10px 5px 7px;
  border: 1px solid var(--border-2);
  border-radius: 999px;
  font-size: 12px; color: var(--ink-dim);
  background: linear-gradient(180deg, color-mix(in oklab, var(--ember-soft) 60%, transparent), transparent);
}
.eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--ember); box-shadow: 0 0 0 3px color-mix(in oklab, var(--ember) 20%, transparent); }

h1.headline {
  font-size: clamp(44px, 6.4vw, 80px);
  line-height: 0.98;
  letter-spacing: -0.035em;
  font-weight: 500;
  margin: 22px 0 20px;
  text-wrap: balance;
}
h1.headline em { font-style: italic; font-weight: 400; color: var(--ink-dim); }
h1.headline .accent { color: var(--ember); font-style: normal; }

.lede {
  color: var(--ink-dim);
  font-size: 18px;
  max-width: 520px;
  text-wrap: pretty;
}

.cta-row { display: flex; gap: 10px; margin-top: 28px; flex-wrap: wrap; }

.hero-meta {
  margin-top: 36px; padding-top: 24px;
  border-top: 1px dashed var(--border-2);
  display: flex; gap: 28px; flex-wrap: wrap;
}
.hero-meta .stat .num { font-family: var(--font-mono); font-size: 22px; color: var(--ink); letter-spacing: -0.02em; }
.hero-meta .stat .lbl { font-family: var(--font-mono); font-size: 11px; color: var(--muted); letter-spacing: 0.1em; text-transform: uppercase; }

/* ---------- Trace panel (hero right) ---------- */
.trace-card {
  position: relative;
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px 18px 14px;
  box-shadow: 0 1px 0 rgba(255,255,255,0.03) inset, 0 30px 80px -40px rgba(0,0,0,0.7);
  font-family: var(--font-mono);
  font-size: 13px;
  overflow: hidden;
}
.trace-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.trace-head .lhs { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; }
.trace-head .lights { display: flex; gap: 6px; }
.trace-head .lights span { width: 10px; height: 10px; border-radius: 50%; background: #2a2a30; }
.trace-head .lights span.live { background: var(--ember); box-shadow: 0 0 10px var(--ember); }

.step {
  position: relative;
  display: grid;
  grid-template-columns: 28px 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 9px 8px;
  border-radius: 8px;
  font-size: 12.5px;
  color: var(--ink-dim);
  transition: background .25s ease;
}
.step.active { background: color-mix(in oklab, var(--ember-soft) 80%, transparent); color: var(--ink); }
.step.checkpoint::before {
  content: ""; position: absolute; left: 22px; top: -8px; bottom: -8px; width: 1px;
  background: linear-gradient(180deg, transparent, var(--border-2) 20%, var(--border-2) 80%, transparent);
}
.step .idx { color: var(--muted); font-size: 11px; }
.step .label { color: inherit; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.step .label .arg { color: var(--muted); }
.step .tag {
  font-size: 10px; padding: 2px 6px; border-radius: 4px;
  border: 1px solid var(--border-2); color: var(--ink-dim); letter-spacing: 0.04em;
}
.tag-ok   { color: var(--good); border-color: color-mix(in oklab, var(--good) 35%, transparent); background: color-mix(in oklab, var(--good) 8%, transparent); }
.tag-gate { color: var(--ember); border-color: color-mix(in oklab, var(--ember) 35%, transparent); background: color-mix(in oklab, var(--ember) 8%, transparent); }
.tag-deny { color: var(--bad); border-color: color-mix(in oklab, var(--bad) 35%, transparent); background: color-mix(in oklab, var(--bad) 8%, transparent); }
.tag-fork { color: var(--warn); border-color: color-mix(in oklab, var(--warn) 35%, transparent); background: color-mix(in oklab, var(--warn) 8%, transparent); }

.bullet { width: 10px; height: 10px; border-radius: 50%; border: 2px solid var(--border-2); background: var(--bg); margin-left: 9px; }
.step.active .bullet { border-color: var(--ember); background: var(--ember); box-shadow: 0 0 0 4px color-mix(in oklab, var(--ember) 18%, transparent); }
.step.done .bullet { border-color: var(--good); background: var(--good); }
.step.gated .bullet { border-color: var(--ember); background: var(--ember); }

.trace-foot {
  margin-top: 12px; padding-top: 12px;
  border-top: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  font-size: 11px; color: var(--muted); letter-spacing: 0.06em; text-transform: uppercase;
}
.trace-foot .right { display: flex; gap: 12px; }
.trace-foot .right span b { color: var(--ink-dim); font-weight: 500; }

/* ---------- Logo strip ---------- */
.logo-strip { padding: 36px 0 4px; }
.logo-strip-inner {
  display: flex; align-items: center; gap: 36px; flex-wrap: wrap;
  padding: 18px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  color: var(--muted);
}
.logo-strip-inner .lbl { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; }
.logo-strip-inner .marquee {
  flex: 1; display: flex; gap: 40px; overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.logo-strip-inner .marquee .track { display: flex; gap: 40px; animation: scroll 38s linear infinite; }
.logo-strip-inner .marquee .track span { font-size: 15px; font-weight: 500; color: #6f6c66; white-space: nowrap; letter-spacing: -0.01em; }
@keyframes scroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---------- Sections ---------- */
section.block { padding: 96px 0; border-top: 1px solid var(--border); }
.block-head { display: flex; flex-direction: column; gap: 12px; margin-bottom: 56px; max-width: 720px; }
.block-head .cap { color: var(--ember); }
.block-head h2 { font-size: clamp(30px, 3.4vw, 44px); margin: 0; letter-spacing: -0.03em; line-height: 1.05; font-weight: 500; text-wrap: balance; }
.block-head p { color: var(--ink-dim); font-size: 17px; max-width: 600px; margin: 0; text-wrap: pretty; }

/* ---------- Pillar grid ---------- */
.pillars { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
@media (max-width: 860px) { .pillars { grid-template-columns: 1fr; } }
.pillar {
  position: relative; overflow: hidden;
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px 26px 0;
  display: flex; flex-direction: column;
  min-height: 360px;
  transition: border-color .2s ease, transform .2s ease;
}
.pillar:hover { border-color: var(--border-2); }
.pillar .pillar-text { max-width: 92%; }
.pillar .pillar-cap { color: var(--ember); font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; }
.pillar h3 { margin: 12px 0 8px; font-size: 22px; letter-spacing: -0.02em; font-weight: 500; line-height: 1.15; }
.pillar p { color: var(--ink-dim); font-size: 14.5px; margin: 0 0 22px; max-width: 42ch; }
.pillar .pillar-visual { margin-top: auto; height: 160px; position: relative; }

/* ---------- Probe board ---------- */
.probe-board { display: grid; grid-template-columns: 1.1fr 1fr; gap: 18px; }
@media (max-width: 860px) { .probe-board { grid-template-columns: 1fr; } }
.probe-card {
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
}
.probe-card h4 { margin: 0 0 4px; font-size: 15px; font-weight: 500; letter-spacing: -0.01em; }
.probe-row { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 14px; padding: 14px 0; border-bottom: 1px dashed var(--border); }
.probe-row:last-child { border-bottom: none; }
.probe-row .name { font-size: 14px; color: var(--ink); }
.probe-row .sub { font-family: var(--font-mono); font-size: 11px; color: var(--muted); letter-spacing: 0.04em; text-transform: uppercase; margin-top: 2px; }
.probe-row .score { font-family: var(--font-mono); font-size: 13px; color: var(--ink); }
.bar { height: 4px; background: var(--border); border-radius: 999px; overflow: hidden; margin-top: 8px; grid-column: 1 / -1; }
.bar > i { display: block; height: 100%; background: linear-gradient(90deg, var(--ember-dim), var(--ember)); border-radius: inherit; transition: width .8s cubic-bezier(.2,.7,.2,1); }
.bar.ok > i { background: linear-gradient(90deg, color-mix(in oklab, var(--good) 60%, transparent), var(--good)); }

/* ---------- How it works ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 860px) { .steps { grid-template-columns: 1fr; } }
.stepcard {
  background: var(--panel); border: 1px solid var(--border); border-radius: 14px;
  padding: 26px;
}
.stepcard .n { font-family: var(--font-mono); color: var(--ember); font-size: 12px; letter-spacing: 0.16em; }
.stepcard h4 { margin: 10px 0 8px; font-size: 18px; letter-spacing: -0.015em; font-weight: 500; }
.stepcard p { margin: 0; color: var(--ink-dim); font-size: 14px; }

/* ---------- Quote ---------- */
.quote { padding: 96px 0; border-top: 1px solid var(--border); }
.quote blockquote { margin: 0; font-size: clamp(24px, 2.6vw, 34px); line-height: 1.25; letter-spacing: -0.02em; font-weight: 400; max-width: 900px; text-wrap: balance; }
.quote blockquote .accent { color: var(--ember); }
.quote .cite { margin-top: 22px; font-family: var(--font-mono); font-size: 12px; color: var(--muted); letter-spacing: 0.08em; text-transform: uppercase; }

/* ---------- Closing CTA ---------- */
.cta-block { padding: 120px 0; border-top: 1px solid var(--border); position: relative; overflow: hidden; }
.cta-block .ring {
  position: absolute; inset: -40% 20% auto auto; width: 700px; height: 700px;
  border-radius: 50%;
  background: radial-gradient(closest-side, color-mix(in oklab, var(--ember) 24%, transparent), transparent 70%);
  filter: blur(10px); pointer-events: none;
}
.cta-block h2 { font-size: clamp(36px, 5vw, 64px); line-height: 1; letter-spacing: -0.035em; margin: 0 0 18px; font-weight: 500; text-wrap: balance; }
.cta-block p { color: var(--ink-dim); font-size: 17px; max-width: 540px; margin: 0 0 28px; }

/* ---------- Footer ---------- */
footer { padding: 40px 0 60px; border-top: 1px solid var(--border); color: var(--muted); font-size: 13px; }
.foot-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.foot-inner a:hover { color: var(--ink); }
.foot-inner .links { display: flex; gap: 20px; }

/* ---------- Utilities ---------- */
.kbd {
  font-family: var(--font-mono); font-size: 11px; padding: 2px 6px;
  border: 1px solid var(--border-2); border-bottom-width: 2px; border-radius: 4px;
  color: var(--ink-dim); background: var(--panel);
}
.divider { height: 1px; background: var(--border); margin: 0; }

/* ---------- Animations ---------- */
@keyframes pulse-soft { 0%, 100% { opacity: 1; } 50% { opacity: 0.45; } }
.pulse { animation: pulse-soft 1.6s ease-in-out infinite; }

@keyframes blink { 0%, 60% { opacity: 1; } 61%, 100% { opacity: 0; } }
.caret { display: inline-block; width: 8px; height: 1em; background: var(--ember); margin-left: 4px; vertical-align: -2px; animation: blink 1s steps(2) infinite; }