:root {
  --bg: #071411;
  --surface: #0b1c18;
  --surface-2: #102721;
  --line: #21463c;
  --text: #ecfff8;
  --muted: #9dc5b8;
  --cyan: #58f3d0;
  --lime: #b9ff66;
  --amber: #ffd166;
  --radius: 20px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 76% 2%, rgb(88 243 208 / 12%), transparent 30rem),
    linear-gradient(180deg, #081713 0, var(--bg) 38rem);
  color: var(--text);
}

a { color: inherit; }
button { font: inherit; }

.skip-link {
  position: fixed;
  z-index: 20;
  top: 1rem;
  left: 1rem;
  padding: .75rem 1rem;
  border-radius: .7rem;
  color: #04100d;
  background: var(--cyan);
  transform: translateY(-200%);
}

.skip-link:focus { transform: translateY(0); }

.hero,
main,
footer {
  width: min(1180px, calc(100% - 2rem));
  margin-inline: auto;
}

.nav {
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  font-weight: 760;
  letter-spacing: -.02em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 13px;
  color: var(--cyan);
  background: rgb(88 243 208 / 6%);
  font-size: .83rem;
  letter-spacing: .08em;
}

.source-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .65rem .9rem;
  color: var(--muted);
  text-decoration: none;
}

.source-link:hover { color: var(--cyan); }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, .55fr);
  align-items: end;
  gap: clamp(2rem, 6vw, 6rem);
  padding: clamp(4.5rem, 10vw, 8.5rem) 0 5rem;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--cyan);
  font-size: .75rem;
  font-weight: 760;
  letter-spacing: .16em;
  text-transform: uppercase;
}

h1, h2, p { overflow-wrap: anywhere; }

h1 {
  max-width: 850px;
  margin: 0;
  font-size: clamp(2.7rem, 7vw, 5.9rem);
  line-height: .97;
  letter-spacing: -.065em;
}

h1 span { color: var(--cyan); }

.lede {
  max-width: 680px;
  margin: 2rem 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  line-height: 1.65;
}

.proof-card {
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgb(16 39 33 / 92%), rgb(8 24 20 / 80%));
  box-shadow: 0 24px 80px rgb(0 0 0 / 28%);
}

.proof-kicker {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: .78rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.proof-card ul { margin: 0; padding: 0; list-style: none; }
.proof-card li { display: flex; gap: .65rem; padding: .65rem 0; border-top: 1px solid rgb(157 197 184 / 12%); }
.proof-card li span { color: var(--lime); }

.status-strip {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 2rem;
  padding: 1.3rem 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.status-strip > div { display: flex; align-items: center; gap: .7rem; }

.status-dot {
  width: .65rem;
  height: .65rem;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 .3rem rgb(255 209 102 / 10%);
}

.status-strip[data-state="verified"] .status-dot { background: var(--lime); box-shadow: 0 0 0 .3rem rgb(185 255 102 / 10%); }
.status-strip[data-state="failed"] .status-dot { background: #ff7575; box-shadow: 0 0 0 .3rem rgb(255 117 117 / 10%); }

dl { display: flex; gap: clamp(1.2rem, 4vw, 3rem); margin: 0; }
dl div { display: grid; gap: .25rem; }
dt { color: var(--muted); font-size: .72rem; letter-spacing: .09em; text-transform: uppercase; }
dd { margin: 0; font-variant-numeric: tabular-nums; }

.evidence-section { padding: 7rem 0; }

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, .8fr);
  align-items: end;
  gap: 3rem;
  margin-bottom: 2.5rem;
}

h2 { margin: 0; font-size: clamp(2rem, 4vw, 3.7rem); line-height: 1.05; letter-spacing: -.045em; }
.section-heading > p, .provenance > div > p:last-child { margin: 0; color: var(--muted); line-height: 1.65; }

.tabs {
  display: flex;
  gap: .55rem;
  padding-bottom: 1.2rem;
  overflow-x: auto;
}

.tabs button {
  min-height: 46px;
  flex: 0 0 auto;
  padding: .65rem .8rem .65rem 1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
}

.tabs button span { display: inline-grid; place-items: center; min-width: 1.7rem; height: 1.7rem; margin-left: .45rem; border-radius: 999px; background: rgb(157 197 184 / 10%); font-size: .78rem; }
.tabs button[aria-selected="true"] { color: #04100d; border-color: var(--cyan); background: var(--cyan); }

.panel {
  min-height: 240px;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.empty-state { display: grid; place-items: center; min-height: 205px; text-align: center; }
.empty-state strong { display: block; margin-bottom: .55rem; font-size: 1.2rem; }
.empty-state p { max-width: 540px; margin: 0; color: var(--muted); line-height: 1.6; }

.result-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); gap: 1rem; }
.result-card { min-width: 0; padding: 1.2rem; border: 1px solid rgb(157 197 184 / 15%); border-radius: 15px; background: var(--surface-2); }
.result-card h3 { margin: 0 0 .35rem; font-size: 1rem; }
.result-card .meta { margin: 0 0 1rem; color: var(--muted); font-size: .8rem; }
.metric-list { display: grid; gap: .5rem; margin: 0; }
.metric-list div { display: flex; justify-content: space-between; gap: 1rem; padding-top: .5rem; border-top: 1px solid rgb(157 197 184 / 12%); }
.metric-list dt { overflow-wrap: anywhere; }
.metric-list dd { text-align: right; }
.receipt { margin: 1rem 0 0; color: var(--muted); font: .72rem ui-monospace, SFMono-Regular, Consolas, monospace; }

.provenance {
  display: grid;
  grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
  gap: clamp(2rem, 8vw, 7rem);
  padding: 0 0 7rem;
}

.source-list { display: grid; gap: .7rem; }
.source-row { min-width: 0; padding: 1rem 1.1rem; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); }
.source-row strong { display: block; margin-bottom: .35rem; color: var(--cyan); font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; }
.source-row a { display: block; overflow: hidden; color: var(--text); font: .8rem ui-monospace, SFMono-Regular, Consolas, monospace; text-overflow: ellipsis; text-decoration: none; white-space: nowrap; }
.source-row a:hover { color: var(--cyan); }

footer {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.8rem 0 2.6rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .82rem;
}

footer p { margin: 0; }

:focus-visible { outline: 3px solid var(--lime); outline-offset: 3px; }

@media (max-width: 760px) {
  .hero-grid, .section-heading, .provenance { grid-template-columns: 1fr; }
  .hero-grid { padding-top: 3.5rem; }
  .status-strip { grid-template-columns: 1fr; }
  dl { justify-content: space-between; }
  footer { flex-direction: column; }
}

@media (max-width: 460px) {
  .hero, main, footer { width: min(100% - 1.2rem, 1180px); }
  .brand > span:last-child { display: none; }
  .status-strip { padding: 1rem; }
  dl { gap: .75rem; }
  .panel { padding: .8rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

@media (forced-colors: active) {
  .status-dot { forced-color-adjust: none; }
  .tabs button[aria-selected="true"] { outline: 2px solid ButtonText; }
}