:root {
  --bg: #07110f;
  --surface: #0b1714;
  --surface-2: #10211d;
  --ink: #f2f7f5;
  --muted: #9fb3ac;
  --line: rgba(184, 222, 209, 0.16);
  --accent: #63f0b7;
  --accent-soft: rgba(99, 240, 183, 0.12);
  --warn: #ffd479;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: "Manrope", sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 100; background: var(--accent); color: #04100c; padding: .7rem 1rem; }
.skip-link:focus { top: 1rem; }
.ambient {
  position: fixed;
  inset: -30vh -20vw auto auto;
  width: 65vw;
  height: 65vw;
  pointer-events: none;
  background: radial-gradient(circle, rgba(39, 165, 123, .18), transparent 68%);
  filter: blur(18px);
}
.site-header {
  width: min(calc(100% - 40px), var(--max));
  height: 88px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}
.wordmark { font: 500 1.15rem "DM Mono", monospace; text-decoration: none; letter-spacing: -.05em; }
.wordmark span { color: var(--accent); }
.site-header nav, footer nav { display: flex; gap: 1.8rem; align-items: center; }
.site-header nav a, footer nav a { color: var(--muted); text-decoration: none; font-size: .84rem; }
.site-header nav a:hover, footer nav a:hover { color: var(--ink); }
.nav-cta { border: 1px solid var(--line); padding: .55rem .85rem; border-radius: 999px; }

main, footer { width: min(calc(100% - 40px), var(--max)); margin: auto; }
.hero {
  min-height: 720px;
  display: grid;
  grid-template-columns: 1.18fr .82fr;
  align-items: center;
  gap: clamp(3rem, 8vw, 8rem);
  padding: 7rem 0;
}
.kicker, .eyebrow { margin: 0 0 1rem; color: var(--accent); font: 500 .76rem "DM Mono", monospace; letter-spacing: .11em; text-transform: uppercase; }
.status-dot { display: inline-block; width: 7px; height: 7px; margin-right: .5rem; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 5px var(--accent-soft); }
h1 { margin: 0; font-size: clamp(4rem, 8vw, 7.7rem); line-height: .86; letter-spacing: -.075em; font-weight: 500; }
h1 em { color: var(--accent); font-style: normal; }
.hero-intro { max-width: 660px; margin: 2.2rem 0 0; color: #c6d5d0; font-size: clamp(1.05rem, 1.5vw, 1.26rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2.25rem; }
.button { display: inline-block; padding: .85rem 1.12rem; border-radius: 8px; text-decoration: none; font-weight: 700; font-size: .9rem; }
.button.primary { background: var(--accent); color: #04100c; }
.button.secondary { border: 1px solid var(--line); color: #d8e5e1; }
.decision-console { border: 1px solid rgba(99, 240, 183, .25); background: rgba(5, 15, 12, .78); box-shadow: 0 28px 90px rgba(0,0,0,.28); border-radius: 16px; overflow: hidden; transform: rotate(1.2deg); }
.console-top { display: flex; gap: 7px; align-items: center; padding: .85rem 1rem; background: var(--surface-2); border-bottom: 1px solid var(--line); }
.console-top span { width: 8px; height: 8px; border-radius: 50%; background: #3d554d; }
.console-top code { margin-left: auto; color: var(--muted); font: .68rem "DM Mono", monospace; }
.console-body { padding: 1.8rem; font: .8rem/1.9 "DM Mono", monospace; }
.console-body p { display: flex; justify-content: space-between; gap: 1rem; }
.console-body .muted { color: #758a83; }
.console-body .warn { color: var(--warn); }
.console-rule { height: 1px; margin: 1.4rem 0; background: var(--line); }
.console-result strong { color: var(--warn); }
.console-note { display: block !important; margin-top: 2rem; padding: .8rem; color: #d7e3df; background: rgba(255, 212, 121, .08); border-left: 2px solid var(--warn); }

.metrics { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-radius: 14px; background: var(--surface); }
.metrics > div { padding: 2rem; border-right: 1px solid var(--line); }
.metrics > div:nth-child(4) { border-right: 0; }
.metrics strong { display: block; font: 500 clamp(2rem, 4vw, 3.3rem) "DM Mono", monospace; letter-spacing: -.07em; }
.metrics span { color: var(--muted); font-size: .82rem; }
.metrics > p { grid-column: 1 / -1; margin: 0; padding: .9rem 1.2rem; color: #748b83; border-top: 1px solid var(--line); font: .66rem "DM Mono", monospace; }

.section { padding: 9rem 0 2rem; }
.section-heading { max-width: 760px; margin-bottom: 3rem; }
h2 { margin: 0; font-size: clamp(2.3rem, 5vw, 4.8rem); line-height: 1.02; letter-spacing: -.055em; font-weight: 500; }
.section-heading > p:last-child { color: var(--muted); max-width: 640px; }
.project-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.project-card { min-height: 360px; display: flex; flex-direction: column; padding: 1.8rem; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; }
.project-card:hover { border-color: rgba(99, 240, 183, .4); transform: translateY(-3px); }
.project-card, .project-card:hover { transition: transform .2s ease, border-color .2s ease; }
.project-card h3, .architecture-step h3 { margin: .3rem 0 1rem; font-size: 1.4rem; }
.project-card > p:not(.eyebrow) { color: var(--muted); }
.project-card .proof { padding-top: 1rem; border-top: 1px solid var(--line); font-size: .8rem; }
.project-card a { margin-top: auto; color: var(--accent); text-decoration: none; font-weight: 700; font-size: .85rem; }

.architecture ol { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.architecture-step { display: grid; grid-template-columns: 100px 1fr; gap: 1.5rem; padding: 2rem 0; border-bottom: 1px solid var(--line); }
.architecture-step > span { color: var(--accent); font: .78rem "DM Mono", monospace; }
.architecture-step h3 { margin-top: 0; }
.architecture-step p { max-width: 680px; margin: 0; color: var(--muted); }
.state-pair { display: grid; grid-template-columns: 1fr auto 1fr; gap: 1.5rem; align-items: center; margin-top: 3rem; padding: 1.8rem; border: 1px solid rgba(99, 240, 183, .24); border-radius: 14px; background: var(--accent-soft); }
.state-pair div { display: grid; gap: .4rem; }
.state-pair small { color: var(--muted); }
.state-pair strong { font: 500 clamp(.72rem, 1.5vw, 1rem) "DM Mono", monospace; }
.state-pair > span { color: var(--accent); font-size: 1.5rem; }

.evidence ul { list-style: none; padding: 0; margin: 0; }
.result-row { display: grid; grid-template-columns: .8fr 1.2fr; gap: 4rem; padding: 1.8rem 0; border-top: 1px solid var(--line); }
.result-row:last-child { border-bottom: 1px solid var(--line); }
.result-row a { text-decoration: none; font-weight: 700; }
.result-row a:hover { color: var(--accent); }
.result-row p { margin: 0; color: var(--muted); }
.ledger-button { margin-top: 2rem; }
.ledger-hero { max-width: 960px; padding: 8rem 0 5rem; }
.ledger-hero h1 { font-size: clamp(4.2rem, 10vw, 8.8rem); }
.ledger-controls { position: sticky; top: 0; z-index: 5; display: grid; grid-template-columns: auto minmax(220px, 1fr) auto; gap: 1rem; align-items: center; margin-bottom: 2rem; padding: 1rem 0; background: rgba(7, 17, 15, .94); backdrop-filter: blur(14px); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.ledger-controls label { color: var(--muted); font: .72rem "DM Mono", monospace; text-transform: uppercase; letter-spacing: .08em; }
.ledger-controls input { width: 100%; padding: .78rem 1rem; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 8px; font: .82rem "DM Mono", monospace; outline: none; }
.ledger-controls input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.filter-row { display: flex; gap: .5rem; }
.filter-row button { padding: .65rem .85rem; color: var(--muted); background: transparent; border: 1px solid var(--line); border-radius: 999px; cursor: pointer; }
.filter-row button.active { color: #04100c; background: var(--accent); border-color: var(--accent); }
.filter-row span { font: .68rem "DM Mono", monospace; }
.ledger-list { border-top: 1px solid var(--line); }
.ledger-record { display: grid; grid-template-columns: 88px 1fr; gap: 2rem; padding: 2.4rem 0; border-bottom: 1px solid var(--line); }
.ledger-record[hidden] { display: none; }
.ledger-rank { color: var(--accent); font: 500 1rem "DM Mono", monospace; }
.ledger-copy { max-width: 900px; }
.ledger-meta { display: flex; flex-wrap: wrap; gap: .65rem; margin-bottom: .8rem; font: .68rem "DM Mono", monospace; text-transform: uppercase; letter-spacing: .06em; }
.ledger-meta span { color: var(--muted); }
.ledger-meta strong { color: var(--accent); }
.ledger-copy h2 { max-width: 830px; font-size: clamp(1.65rem, 3vw, 2.8rem); }
.ledger-copy > p { max-width: 760px; color: var(--muted); }
.ledger-links { display: flex; flex-wrap: wrap; gap: .65rem; margin: 1.35rem 0; }
.ledger-links a { padding: .55rem .72rem; color: var(--ink); border: 1px solid var(--line); border-radius: 7px; text-decoration: none; font: .72rem "DM Mono", monospace; }
.ledger-links a:hover { color: var(--accent); border-color: rgba(99, 240, 183, .4); }
.ledger-caveat { padding-left: 1rem; border-left: 2px solid var(--warn); font-size: .82rem; }
.ledger-caveat b { color: var(--warn); }
.ledger-empty { padding: 4rem 0; color: var(--muted); text-align: center; }
.ledger-method { margin: 8rem 0; padding: clamp(2rem, 6vw, 5rem); background: var(--surface); border: 1px solid var(--line); border-radius: 18px; }
.ledger-method > p:not(.eyebrow) { max-width: 780px; color: var(--muted); }
.principle { margin: 10rem 0 6rem; padding: clamp(2rem, 6vw, 5rem); border-radius: 18px; background: var(--ink); color: #08120f; }
.principle .eyebrow { color: #167d59; }
.principle blockquote { max-width: 900px; margin: 1.5rem 0; font-size: clamp(2.1rem, 5vw, 4.6rem); line-height: 1.03; letter-spacing: -.055em; }
.principle > p:last-child { max-width: 660px; color: #426057; }

footer { display: grid; grid-template-columns: 1fr auto; gap: 2rem; padding: 3rem 0 4rem; border-top: 1px solid var(--line); }
footer p { margin: .25rem 0 0; color: var(--muted); font-size: .8rem; }
.identity-note { grid-column: 1 / -1; font: .64rem "DM Mono", monospace; }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 850px) {
  .site-header nav a:not(.nav-cta) { display: none; }
  .hero { min-height: auto; grid-template-columns: 1fr; padding: 5rem 0; }
  .decision-console { transform: none; max-width: 560px; }
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .metrics > div:nth-child(2) { border-right: 0; }
  .metrics > div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .project-grid { grid-template-columns: 1fr; }
  .project-card { min-height: 300px; }
  .result-row { grid-template-columns: 1fr; gap: .6rem; }
  footer { grid-template-columns: 1fr; }
  .identity-note { grid-column: 1; }
  .ledger-controls { position: static; grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .site-header, main, footer { width: min(calc(100% - 28px), var(--max)); }
  .hero { padding-top: 4rem; }
  h1 { font-size: clamp(3.5rem, 18vw, 5rem); }
  .metrics > div { padding: 1.3rem; }
  .state-pair { grid-template-columns: 1fr; }
  .state-pair > span { transform: rotate(90deg); width: min-content; }
  footer nav { flex-wrap: wrap; gap: 1rem; }
  .ledger-record { grid-template-columns: 44px 1fr; gap: .8rem; }
  .filter-row { flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}