:root {
  color-scheme: dark;
  --ink: #0f1212;
  --panel: #171c1d;
  --paper: #f7f4ec;
  --muted: #aab4ad;
  --line: rgba(247, 244, 236, 0.14);
  --teal: #4fd7c5;
  --lime: #b7ff52;
  --amber: #ffbd54;
  --rose: #f06a6a;
  --blue: #86a8ff;
  --radius: 8px;
  --shadow: 0 24px 84px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    linear-gradient(rgba(247, 244, 236, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(247, 244, 236, 0.035) 1px, transparent 1px),
    radial-gradient(circle at top right, rgba(79, 215, 197, 0.18), transparent 31rem),
    radial-gradient(circle at 10% 78%, rgba(255, 189, 84, 0.15), transparent 28rem),
    linear-gradient(135deg, #0c0f10 0%, #131a1c 46%, #17120f 100%);
  background-size:
    34px 34px,
    34px 34px,
    auto,
    auto,
    auto;
  color: var(--paper);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--paper);
  font: inherit;
  background: rgba(247, 244, 236, 0.07);
  cursor: pointer;
}

button:hover,
button:focus-visible,
a:hover,
a:focus-visible {
  outline: 2px solid rgba(79, 215, 197, 0.5);
  outline-offset: 2px;
}

.lab-shell {
  width: min(1680px, 100%);
  margin: 0 auto;
  padding: 18px clamp(14px, 2.7vw, 44px) 58px;
}

.lab-topbar[data-site-header] .site-topbar__nav {
  display: grid !important;
  flex: 1 1 auto;
  justify-items: end;
  overflow: visible;
}

.lab-topbar[data-site-header] .site-secondary-links[data-geb-section-nav] {
  display: flex !important;
  max-width: 100%;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

.lab-topbar[data-site-header] .site-secondary-links[data-geb-section-nav]::-webkit-scrollbar {
  display: none;
}

.lab-topbar[data-site-header] .site-secondary-links[data-geb-section-nav] a {
  display: inline-flex;
  min-height: 44px !important;
  align-items: center;
  justify-content: center;
  border-color: rgba(79, 215, 197, 0.44) !important;
  padding: 0 12px;
  color: var(--paper) !important;
  background: rgba(15, 18, 18, 0.78) !important;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 500px);
  gap: 24px;
  align-items: end;
  padding: 18px 0 16px;
  border-top: 1px solid var(--line);
}

.lab-label,
.section-label {
  display: block;
  margin-bottom: 8px;
  color: var(--lime);
  font-size: 0.74rem;
  font-weight: 950;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 980px;
  margin-bottom: 10px;
  font-size: clamp(2.2rem, 4.3vw, 3.7rem);
  line-height: 0.94;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(1.24rem, 1.8vw, 1.9rem);
  line-height: 1.04;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  font-size: 1.05rem;
  line-height: 1.15;
}

.hero-copy p,
.braid-grid p,
.receipt-grid p,
.packet-detail p,
.packet-detail li,
.loop-map em {
  color: var(--muted);
  line-height: 1.55;
}

.hero-copy p {
  max-width: 900px;
  margin-bottom: 0;
}

.hero-proof,
.braid-grid article,
.defect-panel,
.loop-panel,
.packet-panel,
.receipt-section {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(23, 28, 29, 0.9);
  box-shadow: var(--shadow);
}

.hero-proof {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  background: var(--line);
}

.hero-proof div {
  min-width: 0;
  padding: 13px;
  background:
    linear-gradient(135deg, rgba(79, 215, 197, 0.14), rgba(255, 189, 84, 0.07)),
    rgba(23, 28, 29, 0.95);
}

.hero-proof span,
.receipt-grid span,
.braid-grid span {
  display: block;
  color: var(--muted);
  font-size: 0.73rem;
  font-weight: 900;
  text-transform: uppercase;
}

.hero-proof strong {
  display: block;
  margin-top: 6px;
  overflow-wrap: anywhere;
  font-size: 1.1rem;
  line-height: 1.12;
}

.braid-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 12px 0 14px;
}

.braid-grid article {
  padding: 18px;
}

.braid-grid span {
  color: var(--amber);
}

.braid-grid p {
  margin: 10px 0 0;
}

.workbench-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(320px, 0.95fr) minmax(360px, 1fr);
  gap: 14px;
  align-items: stretch;
}

.defect-panel,
.loop-panel,
.packet-panel,
.receipt-section {
  padding: 14px;
}

.panel-heading,
.section-intro {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.panel-heading strong {
  color: var(--paper);
  font-size: 1rem;
}

.defect-list {
  display: grid;
  gap: 9px;
}

.defect-list button {
  display: grid;
  gap: 5px;
  width: 100%;
  min-height: 72px;
  padding: 12px;
  text-align: left;
}

.defect-list button.active {
  border-color: rgba(183, 255, 82, 0.58);
  background: rgba(183, 255, 82, 0.12);
}

.defect-list span,
.loop-map span {
  color: var(--amber);
  font-size: 0.72rem;
  font-weight: 950;
  text-transform: uppercase;
}

.defect-list strong {
  display: block;
  color: var(--paper);
  font-size: 0.95rem;
}

.loop-map {
  display: grid;
  gap: 10px;
}

.loop-step {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 10px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: rgba(15, 18, 18, 0.64);
}

.loop-step strong,
.loop-step em {
  display: block;
}

.loop-step strong {
  font-size: 0.98rem;
}

.loop-step em {
  margin-top: 4px;
  font-size: 0.82rem;
  font-style: normal;
}

.packet-detail h2 {
  margin-bottom: 10px;
  font-size: clamp(1.35rem, 2vw, 2.18rem);
}

.packet-detail dl {
  display: grid;
  gap: 10px;
  margin: 16px 0;
}

.packet-detail div {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 11px;
  background: rgba(15, 18, 18, 0.64);
}

.packet-detail dt {
  color: var(--amber);
  font-size: 0.72rem;
  font-weight: 950;
  text-transform: uppercase;
}

.packet-detail dd {
  margin: 5px 0 0;
  color: var(--paper);
  line-height: 1.35;
}

.packet-detail ol {
  margin: 0;
  padding-left: 20px;
}

.receipt-section {
  margin-top: 14px;
}

.receipt-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.receipt-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: rgba(15, 18, 18, 0.64);
}

code {
  color: var(--lime);
  font-size: 0.85rem;
  overflow-wrap: anywhere;
}

@media (max-width: 980px) {
  .hero-grid,
  .workbench-grid,
  .braid-grid,
  .receipt-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .lab-shell {
    padding-inline: 12px;
  }

  .hero-proof {
    grid-template-columns: 1fr;
  }

  .panel-heading,
  .section-intro {
    display: grid;
  }
}