:root {
  --bg-0: #05060b;
  --bg-1: #080a14;
  --bg-2: #0d1020;
  --indigo-deep: #0c0f24;
  --line: rgba(120, 160, 220, 0.10);
  --line-strong: rgba(120, 180, 230, 0.22);
  --ink: #e7eef7;
  --ink-dim: #9aa6bd;
  --ink-mute: #5f6a82;
  --ink-faint: #364056;
  --accent: #6cf2ff;
  --accent-soft: #4ab8d4;
  --accent-glow: rgba(108, 242, 255, 0.45);
  --sans: 'Space Grotesk', 'Helvetica Neue', Arial, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  --max: 1280px;
  --pad-x: clamp(20px, 4vw, 56px);
  --block-pad: clamp(80px, 10vw, 140px);
  --radius: 4px;
  --radius-lg: 10px;
}
* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--bg-0);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px; line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
body {
  min-height: 100vh; overflow-x: hidden;
  background:
    radial-gradient(ellipse at 20% 10%, rgba(40, 60, 130, 0.18), transparent 55%),
    radial-gradient(ellipse at 85% 90%, rgba(20, 80, 110, 0.12), transparent 60%),
    var(--bg-0);
}
a { color: inherit; text-decoration: none; }

.bg-grid, .bg-noise, .bg-vignette { position: fixed; inset: 0; pointer-events: none; z-index: 0; }
.bg-grid {
  background-image:
    linear-gradient(to right, rgba(120, 180, 230, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(120, 180, 230, 0.04) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}
.bg-noise {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.6  0 0 0 0 0.7  0 0 0 0 0.85  0 0 0 0.10 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  opacity: 0.5; mix-blend-mode: overlay;
}
.bg-vignette { background: radial-gradient(ellipse at center, transparent 50%, rgba(0, 0, 0, 0.6) 100%); }

.container { max-width: var(--max); margin: 0 auto; padding: 0 var(--pad-x); position: relative; z-index: 1; }
.mono { font-family: var(--mono); letter-spacing: 0.02em; }
.muted { color: var(--ink-mute); }
.accent { color: var(--accent); }
.center { text-align: center; justify-content: center; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-mute); margin-bottom: 28px;
}
.eyebrow-num { color: var(--accent); }
.eyebrow-sep { color: var(--ink-faint); }
.eyebrow-label { color: var(--ink-dim); }

.title-xl {
  font-weight: 500; font-size: clamp(44px, 7vw, 96px);
  line-height: 1.0; letter-spacing: -0.02em;
  margin: 0 0 28px; color: var(--ink);
}
.title-xl em { font-style: normal; color: var(--accent); font-weight: 400; }
.title-l {
  font-weight: 500; font-size: clamp(36px, 4.6vw, 60px);
  line-height: 1.05; letter-spacing: -0.015em; margin: 0 0 20px;
}
.lede {
  font-size: clamp(17px, 1.4vw, 20px); line-height: 1.55;
  color: var(--ink-dim); margin: 0 0 16px; max-width: 56ch; text-wrap: pretty;
}
.lede-large { font-size: clamp(22px, 2.2vw, 30px); color: var(--ink); line-height: 1.4; }

.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  background: linear-gradient(to bottom, rgba(5, 6, 11, 0.78), rgba(5, 6, 11, 0.4));
  border-bottom: 1px solid var(--line);
}
.header-inner { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 32px; height: 68px; }
.logo { display: inline-flex; align-items: center; gap: 12px; color: var(--ink); }
.logo-mark { display: inline-flex; color: var(--accent); filter: drop-shadow(0 0 6px var(--accent-glow)); }
.logo-text { display: inline-flex; align-items: baseline; font-weight: 600; letter-spacing: -0.01em; font-size: 16px; }
.logo-primary { color: var(--ink); }
.logo-sub { font-family: var(--mono); font-weight: 400; color: var(--ink-mute); font-size: 13px; letter-spacing: 0; }

.nav { justify-self: center; display: flex; gap: clamp(18px, 2.5vw, 36px); font-size: 14px; color: var(--ink-dim); }
.nav a { position: relative; padding: 6px 0; transition: color 0.2s ease; }
.nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 2px;
  height: 1px; background: var(--accent);
  transform: scaleX(0); transform-origin: left; transition: transform 0.25s ease;
}
.nav a:hover, .nav a.is-active { color: var(--ink); }
.nav a:hover::after, .nav a.is-active::after { transform: scaleX(1); }

.header-meta { display: inline-flex; align-items: center; gap: 8px; font-size: 12px; color: var(--ink-mute); letter-spacing: 0.04em; }
.status-dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 0 0 var(--accent-glow);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 var(--accent-glow); }
  50% { box-shadow: 0 0 0 8px rgba(108, 242, 255, 0); }
}

.block { position: relative; padding-top: var(--block-pad); padding-bottom: var(--block-pad); border-bottom: 1px solid var(--line); }
.block::before {
  content: attr(data-block); position: absolute; top: 28px; right: var(--pad-x);
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.2em; color: var(--ink-faint);
}
.block-head { margin-bottom: 64px; }
.block-head-split { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: end; margin-bottom: 64px; }
.block-head-split .lede { margin-bottom: 0; }

.hero { padding-top: clamp(80px, 12vw, 160px); padding-bottom: clamp(60px, 8vw, 100px); }
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(40px, 6vw, 80px); align-items: center; }
.hero-stats {
  margin-top: 56px; display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 20px; border-top: 1px solid var(--line); padding-top: 24px; max-width: 540px;
}
.stat { display: flex; flex-direction: column; gap: 6px; }
.stat-label { font-size: 11px; letter-spacing: 0.18em; color: var(--ink-mute); }
.stat-value { font-size: 22px; color: var(--ink); font-weight: 500; }
.stat-value .muted { font-weight: 400; font-size: 16px; color: var(--ink-mute); }
.hero-foot { margin-top: clamp(60px, 8vw, 100px); display: flex; justify-content: space-between; font-size: 12px; color: var(--ink-mute); letter-spacing: 0.08em; }

.scope {
  border: 1px solid var(--line-strong);
  background: linear-gradient(180deg, var(--bg-2), var(--bg-1));
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: 0 0 0 1px rgba(108, 242, 255, 0.05), 0 30px 80px -30px rgba(0, 0, 0, 0.7), inset 0 0 60px rgba(108, 242, 255, 0.04);
}
.scope-header, .scope-footer {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 16px; font-size: 11px; letter-spacing: 0.12em;
  color: var(--ink-mute); border-bottom: 1px solid var(--line);
}
.scope-footer { border-top: 1px solid var(--line); border-bottom: none; }
.scope-burst { color: var(--accent); letter-spacing: 0.05em; }
.scope-coord { color: var(--ink-dim); }
.waveform {
  display: block; width: 100%; height: 240px;
  background: radial-gradient(ellipse at center, rgba(108, 242, 255, 0.05), transparent 70%), var(--indigo-deep);
}
.scope-grid line { stroke: rgba(108, 242, 255, 0.12); stroke-width: 0.5; stroke-dasharray: 2 4; }
#waveformPath { filter: drop-shadow(0 0 4px var(--accent-glow)); }
.binary-strip {
  margin-top: 16px; font-size: 11px; color: var(--ink-faint); letter-spacing: 0.15em;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; padding: 0 4px;
}

.steps { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.step {
  display: grid; grid-template-columns: 80px 1fr 220px;
  gap: 32px; align-items: center; padding: 36px 0;
  border-bottom: 1px solid var(--line); transition: background 0.3s ease;
}
.step:hover { background: linear-gradient(90deg, transparent, rgba(108, 242, 255, 0.025), transparent); }
.step-num { font-size: 12px; letter-spacing: 0.2em; color: var(--accent); }
.step-body h3 { font-weight: 500; font-size: clamp(22px, 2vw, 28px); margin: 0 0 8px; letter-spacing: -0.01em; }
.step-body p { margin: 0; color: var(--ink-dim); max-width: 56ch; }
.step-vis { height: 80px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-1); display: flex; align-items: center; justify-content: center; padding: 12px; }
.step-vis svg { width: 100%; height: 100%; }
.bin-block { font-size: 12px; line-height: 1.4; color: var(--accent-soft); letter-spacing: 0.1em; }

.mini-points { list-style: none; margin: 64px 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.mini-points li { display: flex; align-items: baseline; gap: 12px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--ink); font-size: 16px; }
.mp-mark { color: var(--accent); font-size: 14px; }

.mech-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.mech-card {
  border: 1px solid var(--line-strong); border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--bg-2), var(--bg-1));
  padding: 28px 28px 24px; display: flex; flex-direction: column; gap: 18px;
  transition: border-color 0.3s ease, transform 0.3s ease;
}
.mech-card:hover { border-color: rgba(108, 242, 255, 0.3); transform: translateY(-2px); }
.mech-card-head { display: flex; justify-content: space-between; align-items: center; font-size: 11px; color: var(--ink-mute); letter-spacing: 0.18em; }
.mech-tag { color: var(--accent); border: 1px solid rgba(108, 242, 255, 0.25); padding: 3px 8px; border-radius: 999px; background: rgba(108, 242, 255, 0.05); }
.mech-card h3 { font-weight: 500; font-size: 22px; margin: 0; letter-spacing: -0.01em; }
.mech-card p { margin: 0; color: var(--ink-dim); font-size: 15px; line-height: 1.55; }
.mech-vis { margin-top: auto; height: 80px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--indigo-deep); padding: 10px; }
.mech-vis svg { width: 100%; height: 100%; display: block; }
.mech-vis-bin { font-size: 12px; line-height: 1.5; color: var(--accent-soft); letter-spacing: 0.12em; display: flex; align-items: center; justify-content: center; text-align: center; }

.pull-quote { margin: 80px auto 0; max-width: 800px; text-align: center; font-weight: 400; font-size: clamp(24px, 2.6vw, 36px); line-height: 1.3; color: var(--ink-dim); letter-spacing: -0.01em; }
.pull-quote em { font-style: normal; color: var(--accent); }

.twist-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(48px, 6vw, 80px); align-items: center; }
.twist-progression { margin: 32px 0 40px; border-left: 1px solid var(--line-strong); padding-left: 24px; }
.twist-line { margin: 0 0 14px; font-size: clamp(18px, 1.6vw, 22px); color: var(--ink-dim); line-height: 1.4; }
.twist-line-pause { font-size: 12px; color: var(--ink-faint); letter-spacing: 0.2em; margin: 20px 0; }
.twist-line-emph { color: var(--ink); font-size: clamp(22px, 2vw, 28px); font-weight: 500; letter-spacing: -0.01em; }
.twist-line-emph:last-child { color: var(--accent); }

.mini-points-stacked { grid-template-columns: 1fr; gap: 0; margin-top: 40px; }
.mini-points-stacked li { padding: 16px 0; border-top: 1px solid var(--line); border-bottom: none; }
.mini-points-stacked li:last-child { border-bottom: 1px solid var(--line); }

.placeholder-frame { margin: 0; border: 1px solid var(--line-strong); border-radius: var(--radius-lg); overflow: hidden; background: var(--bg-1); box-shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.7), inset 0 0 60px rgba(108, 242, 255, 0.03); }
.ph-chrome { display: flex; justify-content: space-between; align-items: center; padding: 12px 16px; border-bottom: 1px solid var(--line); font-size: 11px; color: var(--ink-mute); letter-spacing: 0.12em; }
.ph-chrome-dots { display: inline-flex; gap: 6px; }
.ph-chrome-dots i { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--ink-faint); }
.ph-chrome-dots i:last-child { background: var(--accent); box-shadow: 0 0 6px var(--accent-glow); }
.ph-body {
  position: relative; aspect-ratio: 4 / 2.4;
  background:
    radial-gradient(ellipse at 30% 30%, rgba(40, 80, 160, 0.35), transparent 60%),
    radial-gradient(ellipse at 70% 70%, rgba(20, 100, 130, 0.3), transparent 60%),
    linear-gradient(135deg, #0a0e22, #060812);
  overflow: hidden;
}
.ph-noise {
  position: absolute; inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.5  0 0 0 0 0.7  0 0 0 0 0.95  0 0 0 0.18 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  mix-blend-mode: screen; opacity: 0.7;
}
.ph-overlay { position: absolute; inset: 0; }
.ph-overlay-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(108, 242, 255, 0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(108, 242, 255, 0.06) 1px, transparent 1px);
  background-size: 40px 40px;
}
.ph-trace { position: absolute; inset: 10% 0; width: 100%; height: 80%; filter: drop-shadow(0 0 6px var(--accent-glow)); }
.ph-caption { position: absolute; left: 16px; bottom: 14px; font-size: 10px; letter-spacing: 0.2em; color: var(--ink-mute); text-transform: uppercase; }

.block-experience { text-align: center; }
.experience-inner { max-width: 880px; margin: 0 auto; text-align: center; }
.experience-inner .eyebrow { justify-content: center; }
.quiet-title { margin: 16px 0 32px; }
.quiet-title em { color: var(--ink); }
.footnote { margin: 40px 0 0; font-size: 12px; color: var(--ink-mute); letter-spacing: 0.15em; text-transform: uppercase; }
.ambient-line { margin: 80px auto 0; max-width: 1200px; height: 60px; opacity: 0.7; }
.ambient-line svg { width: 100%; height: 100%; }

.block-cta { border-bottom: none; padding-bottom: clamp(120px, 14vw, 180px); }
.cta-inner { max-width: 880px; margin: 0 auto; text-align: center; }
.cta-inner .eyebrow { justify-content: center; }
.cta-inner .lede { margin-left: auto; margin-right: auto; }

.cta-verbs {
  list-style: none; margin: 48px 0; padding: 0;
  display: flex; justify-content: center; gap: clamp(24px, 4vw, 56px);
  font-size: clamp(16px, 1.4vw, 18px); letter-spacing: 0.2em; text-transform: uppercase;
}
.cta-verbs li { position: relative; color: var(--ink); }
.cta-verbs li::before { content: "·"; position: absolute; left: -28px; top: 50%; transform: translateY(-50%); color: var(--accent); font-size: 24px; line-height: 0; }
.cta-verbs li:first-child::before { display: none; }

.cta-buttons { display: flex; justify-content: center; gap: 16px; margin-top: 16px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 16px 28px; font-family: var(--sans); font-weight: 500; font-size: 15px;
  letter-spacing: 0.02em; border-radius: 999px; border: 1px solid transparent;
  cursor: pointer; transition: all 0.25s ease;
}
.btn-primary { background: var(--accent); color: var(--bg-0); box-shadow: 0 0 0 1px rgba(108, 242, 255, 0.4), 0 10px 40px -10px var(--accent-glow); }
.btn-primary:hover { background: #8df8ff; box-shadow: 0 0 0 1px rgba(108, 242, 255, 0.6), 0 14px 50px -10px var(--accent-glow); transform: translateY(-1px); }
.btn-primary .btn-arrow { transition: transform 0.25s ease; }
.btn-primary:hover .btn-arrow { transform: translateX(4px); }
.btn-ghost { background: transparent; color: var(--ink-dim); border-color: var(--line-strong); }
.btn-ghost:hover { color: var(--ink); border-color: rgba(108, 242, 255, 0.4); }

.cta-coords { margin-top: 48px; display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; font-size: 11px; letter-spacing: 0.15em; color: var(--ink-mute); }

.site-footer { border-top: 1px solid var(--line); background: var(--bg-1); padding: 32px 0; position: relative; z-index: 1; }
.footer-inner { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 24px; font-size: 12px; }
.footer-brand { display: flex; flex-direction: column; gap: 4px; letter-spacing: 0.05em; }
.footer-nav { display: flex; gap: 28px; justify-self: center; }
.footer-nav a { color: var(--ink-dim); transition: color 0.2s ease; }
.footer-nav a:hover { color: var(--accent); }
.footer-meta { display: inline-flex; align-items: center; gap: 8px; justify-self: end; color: var(--ink-mute); letter-spacing: 0.1em; }

.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }

@media (max-width: 960px) {
  .header-inner { grid-template-columns: auto 1fr; }
  .header-meta { display: none; }
  .nav { justify-self: end; gap: 18px; font-size: 13px; }
  .hero-grid { grid-template-columns: 1fr; }
  .block-head-split { grid-template-columns: 1fr; gap: 16px; align-items: start; }
  .step { grid-template-columns: 60px 1fr; }
  .step-vis { display: none; }
  .mech-grid { grid-template-columns: 1fr; }
  .mini-points { grid-template-columns: 1fr; }
  .twist-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; text-align: center; justify-items: center; }
  .footer-nav, .footer-meta { justify-self: center; }
}
@media (max-width: 560px) {
  .nav a:nth-child(n+4) { display: none; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .cta-verbs { flex-direction: column; gap: 16px; }
  .cta-verbs li::before { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}
::selection { background: rgba(108, 242, 255, 0.3); color: var(--ink); }