@font-face {
  font-family: "Rialo Display";
  src: url("/fonts/Oswald-Variable.ttf") format("truetype");
  font-style: normal;
  font-weight: 200 700;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --ink: #10161a;
  --panel: #182127;
  --panel-raised: #202b32;
  --line: #33414a;
  --line-soft: #28343b;
  --paper: #eeeae1;
  --muted: #9ba5aa;
  --signal: #ff7919;
  --verified: #70e6c4;
  --warning: #ffd166;
  --danger: #ff765f;
  --mono: "Cascadia Mono", "IBM Plex Mono", Consolas, monospace;
  --sans: Inter, "Segoe UI", Arial, sans-serif;
  --display: "Rialo Display", "Arial Narrow", "Roboto Condensed", Impact, sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  line-height: 1.5;
}
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
.shell { width: min(1100px, calc(100% - 40px)); margin-inline: auto; }
.blueprint {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 75% 65% at 50% 0%, #000 35%, transparent 92%);
}

.topbar {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 70px;
  border-bottom: 1px solid var(--line-soft);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .09em;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--verified);
  box-shadow: 0 0 16px rgba(112,230,196,.8);
}
.language-switch { display: flex; align-items: center; gap: 8px; color: #55636b; }
.language-switch button {
  padding: 4px 2px;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font: 700 12px var(--mono);
}
.language-switch button:hover { color: var(--paper); }
.language-switch button.active { color: var(--signal); }

main, footer { position: relative; }
.hero { padding: 76px 0 48px; }
.eyebrow {
  margin: 0 0 12px;
  color: var(--signal);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .15em;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  margin-bottom: 24px;
  font-family: var(--display);
  font-size: clamp(62px, 10vw, 116px);
  font-stretch: condensed;
  font-weight: 900;
  letter-spacing: -.035em;
  line-height: .93;
}
h1 span { color: var(--paper); }
h1 span.accent { color: var(--signal); }
.hero-copy { max-width: 760px; margin-bottom: 0; color: var(--muted); font-size: 17px; line-height: 1.7; }
h2 { margin-bottom: 0; font-size: clamp(30px, 4vw, 44px); line-height: 1.05; }
.public-hero { padding-bottom: 70px; }

.verify-panel, .detail-panel {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: linear-gradient(145deg, rgba(255,255,255,.015), transparent 42%), var(--panel);
}
.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}
.section-heading.compact { align-items: start; }
.step-mark { color: var(--line); font: 700 44px/1 var(--mono); }
.drop-zone {
  display: grid;
  place-items: center;
  min-height: 220px;
  padding: 30px;
  border: 1px dashed #56656e;
  border-radius: 5px;
  background: #11181c;
  color: var(--muted);
  cursor: pointer;
  text-align: center;
  transition: border-color .15s ease, background .15s ease, transform .15s ease;
}
.drop-zone:hover, .drop-zone:focus-visible, .drop-zone.dragging {
  outline: none;
  border-color: var(--signal);
  background: #171d20;
  transform: translateY(-1px);
}
.drop-zone input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.drop-zone strong { color: var(--paper); font-size: 17px; }
.drop-zone code { color: var(--verified); font-family: var(--mono); font-weight: 500; }
.drop-zone span:last-child { font-size: 13px; }
.drop-icon { color: var(--signal); font: 400 42px/1 var(--mono); }
.privacy-note { margin: 14px 0 0; color: var(--muted); font-size: 12px; }

.devices-section, .batches-section, .how-it-works { padding: 90px 0 0; }
.devices-section { padding-top: 0; }
.text-button, .icon-button {
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}
.text-button { border-bottom: 1px solid var(--line); padding: 4px 0; font-size: 13px; }
.text-button:hover { color: var(--signal); border-color: var(--signal); }
.icon-button { font: 300 34px/1 var(--sans); }
.icon-button:hover { color: var(--paper); }

.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-bottom: 22px; background: var(--line); border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
.metrics article { min-width: 0; padding: 20px; background: var(--panel); }
.metrics span { display: block; margin-bottom: 6px; color: var(--muted); font-size: 12px; }
.metrics strong { font: 600 27px/1.1 var(--mono); }

.table-frame { overflow: hidden; border: 1px solid var(--line); border-radius: 6px; background: var(--panel); }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { padding: 13px 16px; color: var(--muted); font-size: 10px; letter-spacing: .1em; text-align: left; text-transform: uppercase; }
td { padding: 16px; border-top: 1px solid var(--line-soft); }
td.mono { font-family: var(--mono); }
.status { display: inline-flex; align-items: center; gap: 7px; white-space: nowrap; font: 600 10px var(--mono); letter-spacing: .05em; }
.status::before { width: 7px; height: 7px; border-radius: 50%; background: var(--muted); content: ""; }
.status.anchored, .status.rialo-verified { color: var(--verified); }
.status.anchored::before, .status.rialo-verified::before { background: var(--verified); }
.status.local-only, .status.local-verified { color: var(--warning); }
.status.local-only::before, .status.local-verified::before { background: var(--warning); }
.status.tampered, .status.invalid-receipt { color: var(--danger); }
.status.tampered::before, .status.invalid-receipt::before { background: var(--danger); }
.row-button { border: 0; background: none; color: var(--signal); cursor: pointer; font: 600 12px var(--mono); }
.row-button:hover { text-decoration: underline; }
.empty-state { display: grid; place-items: center; min-height: 210px; color: var(--muted); text-align: center; }
.empty-state strong { color: var(--paper); }
.empty-state.standalone { border: 1px solid var(--line); border-radius: 6px; background: var(--panel); }

.device-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.device-card {
  display: grid;
  gap: 9px;
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: linear-gradient(145deg, rgba(255,255,255,.018), transparent 55%), var(--panel);
  color: var(--paper);
  cursor: pointer;
  text-align: left;
  transition: border-color .15s ease, transform .15s ease, background .15s ease;
}
.device-card:hover, .device-card:focus-visible {
  outline: none;
  border-color: var(--signal);
  background-color: var(--panel-raised);
  transform: translateY(-2px);
}
.device-card-head { display: flex; justify-content: space-between; }
.device-card > strong { margin-top: 13px; font: 700 18px var(--mono); }
.device-card > b { color: var(--verified); font: 600 38px/1.1 var(--mono); }
.device-card-meta { color: var(--muted); font-size: 12px; }
.device-card code { overflow: hidden; color: #66747c; font: 11px var(--mono); text-overflow: ellipsis; white-space: nowrap; }
.history-heading { align-items: start; }
.breadcrumb {
  margin: 0 0 18px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 12px;
}
.breadcrumb:hover { color: var(--signal); }
.fingerprint { max-width: 720px; margin: 12px 0 0; overflow: hidden; color: var(--muted); font: 11px var(--mono); text-overflow: ellipsis; white-space: nowrap; }

.detail-panel { margin-top: 26px; scroll-margin-top: 24px; }
.detail-grid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(270px, .8fr); gap: 20px; }
.chart-card { position: relative; padding: 20px; background: #11181c; border: 1px solid var(--line-soft); border-radius: 5px; }
.chart-head { display: flex; justify-content: space-between; color: var(--muted); font-size: 12px; }
.chart-head strong { color: var(--verified); font: 600 22px var(--mono); }
#temperature-chart { display: block; width: 100%; height: 220px; margin-top: 10px; overflow: visible; }
.chart-tooltip {
  position: absolute;
  z-index: 4;
  min-width: 148px;
  padding: 9px 11px;
  border: 1px solid var(--verified);
  border-radius: 4px;
  background: #0d1316;
  box-shadow: 0 8px 24px rgba(0,0,0,.32);
  color: var(--paper);
  pointer-events: none;
  transform: translate(-50%, calc(-100% - 14px));
  font: 11px/1.5 var(--mono);
  text-align: center;
  white-space: nowrap;
}
.chart-point { transition: r .12s ease, fill .12s ease; }
.chart-guide { pointer-events: none; }
.facts { margin: 0; border: 1px solid var(--line-soft); border-radius: 5px; overflow: hidden; }
.facts div { padding: 13px 15px; border-bottom: 1px solid var(--line-soft); }
.facts div:last-child { border-bottom: 0; }
.facts dt { color: var(--muted); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }
.facts dd { overflow: hidden; margin: 4px 0 0; font: 12px var(--mono); text-overflow: ellipsis; white-space: nowrap; }
.detail-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.proof-explanation { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.proof-explanation span { padding: 7px 10px; border: 1px solid var(--line-soft); border-radius: 3px; color: var(--muted); font: 11px var(--mono); }
.chain-proof { margin-top: 20px; padding: 22px; border: 1px solid var(--line-soft); border-radius: 5px; background: #11181c; }
.chain-proof-head { display: flex; align-items: start; justify-content: space-between; gap: 20px; }
.chain-proof-head .eyebrow { margin-bottom: 7px; }
.chain-proof-head h3 { margin-bottom: 0; font-size: 20px; }
.network-badge { display: inline-flex; align-items: center; gap: 8px; padding: 7px 10px; border: 1px solid rgba(112,230,196,.35); border-radius: 3px; color: var(--verified); font: 700 10px var(--mono); letter-spacing: .08em; white-space: nowrap; }
.network-badge i { width: 7px; height: 7px; border-radius: 50%; background: var(--verified); box-shadow: 0 0 12px rgba(112,230,196,.8); }
.digest-compare { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); align-items: stretch; gap: 12px; margin-top: 20px; }
.digest-compare article { min-width: 0; padding: 15px; border: 1px solid var(--line-soft); border-radius: 4px; background: var(--panel); }
.digest-compare article > span { display: block; margin-bottom: 7px; color: var(--muted); font-size: 11px; }
.digest-compare code { display: block; overflow-wrap: anywhere; color: var(--paper); font: 11px/1.5 var(--mono); }
.digest-compare > strong { display: grid; place-items: center; width: 36px; color: var(--muted); font: 700 24px var(--mono); }
.digest-compare > strong.match { color: var(--verified); }
.digest-compare > strong.mismatch { color: var(--danger); }
.chain-records { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; margin-top: 12px; overflow: hidden; border: 1px solid var(--line-soft); border-radius: 4px; background: var(--line-soft); }
.chain-records > * { display: grid; min-width: 0; padding: 15px; background: var(--panel); text-decoration: none; }
.chain-records > a:hover { background: var(--panel-raised); }
.chain-records span { color: var(--muted); font-size: 10px; letter-spacing: .07em; text-transform: uppercase; }
.chain-records strong { margin: 5px 0 8px; overflow-wrap: anywhere; color: var(--paper); font: 11px/1.5 var(--mono); }
.chain-records b { color: var(--signal); font: 600 10px var(--mono); }
.rpc-note { margin: 14px 0 0; color: var(--muted); font-size: 12px; }
.primary-button, .secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 17px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}
.primary-button { border: 1px solid var(--signal); background: var(--signal); color: #181008; }
.primary-button:hover { background: #ff8b38; }
.secondary-button { border: 1px solid var(--line); background: transparent; color: var(--paper); }
.secondary-button:hover { border-color: var(--paper); }
.secondary-button.danger:hover { border-color: var(--danger); color: var(--danger); }

.result { margin-top: 18px; padding: 15px 17px; border: 1px solid var(--line); border-radius: 4px; background: rgba(255,255,255,.025); }
.result-head { display: flex; align-items: center; gap: 10px; margin-bottom: 5px; font: 700 13px var(--mono); }
.result p { margin-bottom: 0; color: var(--muted); font-size: 13px; }
.result-checks { display: grid; gap: 6px; margin: 12px 0 0; padding: 0; list-style: none; color: var(--muted); font: 11px var(--mono); }
.result-checks li::before { margin-right: 8px; color: var(--verified); content: "✓"; }
.result.ok { border-color: var(--verified); background: rgba(112,230,196,.06); }
.result.ok .result-head { color: var(--verified); }
.result.bad { border-color: var(--danger); background: rgba(255,118,95,.06); }
.result.bad .result-head { color: var(--danger); }
.result.warn { border-color: var(--warning); background: rgba(255,209,102,.05); }
.result.warn .result-head { color: var(--warning); }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; overflow: hidden; border: 1px solid var(--line); border-radius: 6px; background: var(--line); }
.steps article { padding: 28px 25px; background: var(--panel); }
.steps b { color: var(--signal); font: 600 12px var(--mono); }
.steps h3 { margin: 16px 0 9px; font-size: 18px; }
.steps p { margin-bottom: 0; color: var(--muted); font-size: 14px; }
.footer { display: flex; justify-content: space-between; gap: 20px; margin-top: 90px; padding: 32px 0 44px; border-top: 1px solid var(--line-soft); color: var(--muted); font-size: 12px; }
.footer a { text-decoration: none; }
.footer a:hover { color: var(--signal); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

@media (max-width: 820px) {
  .device-grid { grid-template-columns: 1fr; }
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .detail-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .chain-records { grid-template-columns: 1fr; }
  table thead { display: none; }
  table, tbody, tr, td { display: block; }
  tr { padding: 14px; border-top: 1px solid var(--line-soft); }
  tr:first-child { border-top: 0; }
  td { display: flex; justify-content: space-between; gap: 20px; padding: 5px 0; border: 0; }
  td::before { color: var(--muted); content: attr(data-label); font-size: 11px; }
}

@media (max-width: 560px) {
  .shell { width: min(100% - 24px, 1100px); }
  .hero { padding-top: 54px; }
  h1 { font-size: 57px; }
  .hero-copy { font-size: 16px; }
  .verify-panel, .detail-panel { padding: 20px; }
  .drop-zone { min-height: 190px; padding: 22px 14px; }
  .section-heading { align-items: start; }
  .metrics article { padding: 16px; }
  .metrics strong { font-size: 22px; }
  .detail-actions > * { width: 100%; }
  .chain-proof { padding: 17px; }
  .chain-proof-head { display: grid; }
  .digest-compare { grid-template-columns: 1fr; }
  .digest-compare > strong { width: 100%; height: 28px; }
  .footer { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}