:root {
  --ink: #12141a;
  --oxide: #e85d04;
  --chrome: #c5ccd6;
  --leader: #f4f1ec;
  --shell: #1c1f28;
  --oxide-dim: #b84803;
  --chrome-dim: #8b939e;
  --tape: #2a2e38;
  --font-display: "Outfit", system-ui, sans-serif;
  --font-body: "EB Garamond", Georgia, serif;
  --max: 68rem;
  --pad: clamp(1rem, 3vw, 2rem);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--ink);
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(232, 93, 4, 0.12), transparent 55%),
    linear-gradient(180deg, #ebe6de 0%, var(--leader) 40%, #e8e2d8 100%);
  min-height: 100vh;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--oxide-dim);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--oxide);
}

.skip {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--ink);
  color: var(--leader);
  padding: 0.5rem 1rem;
  z-index: 100;
}

.skip:focus {
  left: 0.5rem;
  top: 0.5rem;
}

.shell {
  width: min(100% - 2 * var(--pad), var(--max));
  margin-inline: auto;
}

.mast {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--shell) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid color-mix(in srgb, var(--chrome) 35%, transparent);
}

.mast__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--leader);
  text-decoration: none;
}

.wordmark__mark {
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 50%;
  border: 3px solid var(--oxide);
  background:
    radial-gradient(circle at 50% 50%, var(--shell) 28%, transparent 29%),
    conic-gradient(from 0deg, var(--chrome), var(--oxide), var(--chrome));
  box-shadow: inset 0 0 0 2px var(--ink);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.25rem;
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.nav a {
  color: var(--chrome);
  text-decoration: none;
}

.nav a[aria-current="page"],
.nav a:hover {
  color: var(--oxide);
}

.hero {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(135deg, var(--ink) 0%, var(--shell) 55%, #252a36 100%);
  color: var(--leader);
  min-height: min(92vh, 46rem);
  display: grid;
  align-items: end;
  border-bottom: 4px solid var(--oxide);
}

.hero__spools {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.55;
  background:
    radial-gradient(circle at 18% 42%, transparent 0 5.5%, var(--chrome-dim) 5.7% 6.2%, transparent 6.4%),
    radial-gradient(circle at 18% 42%, var(--tape) 0 4.2%, transparent 4.3%),
    radial-gradient(circle at 82% 42%, transparent 0 5.5%, var(--chrome-dim) 5.7% 6.2%, transparent 6.4%),
    radial-gradient(circle at 82% 42%, var(--tape) 0 4.2%, transparent 4.3%),
    linear-gradient(90deg, transparent 24%, color-mix(in srgb, var(--oxide) 35%, transparent) 24% 26%, transparent 26% 74%, color-mix(in srgb, var(--oxide) 35%, transparent) 74% 76%, transparent 76%),
    repeating-linear-gradient(
      90deg,
      transparent 0 1.1rem,
      color-mix(in srgb, var(--chrome) 12%, transparent) 1.1rem 1.15rem
    );
  animation: spool-drift 18s linear infinite;
}

.hero__jcard {
  position: absolute;
  right: max(4%, calc(50% - 34rem));
  top: 12%;
  width: min(42vw, 18rem);
  aspect-ratio: 2 / 3;
  border: 1px solid color-mix(in srgb, var(--chrome) 45%, transparent);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--leader) 8%, transparent), transparent 30%),
    repeating-linear-gradient(
      180deg,
      transparent 0 1.35rem,
      color-mix(in srgb, var(--chrome) 18%, transparent) 1.35rem 1.4rem
    ),
    color-mix(in srgb, var(--tape) 80%, #000);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  transform: rotate(4deg);
  animation: jcard-in 1.1s ease-out both;
}

.hero__jcard::before {
  content: "";
  position: absolute;
  left: 10%;
  right: 10%;
  top: 8%;
  height: 22%;
  border: 1px dashed color-mix(in srgb, var(--oxide) 70%, transparent);
}

.hero__jcard::after {
  content: "SIDE A · INDEX";
  position: absolute;
  left: 12%;
  bottom: 12%;
  font-family: var(--font-display);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  color: var(--oxide);
}

.hero__content {
  position: relative;
  z-index: 1;
  padding: clamp(4rem, 12vh, 7rem) 0 clamp(2.5rem, 6vh, 4rem);
  max-width: 40rem;
}

.hero__brand {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.4rem, 7vw, 4.2rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--leader);
  text-shadow: 0 2px 0 rgba(0, 0, 0, 0.35);
  animation: brand-rise 0.9s ease-out both;
}

.hero h1 {
  margin: 0 0 1rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: clamp(1.35rem, 2.6vw, 1.75rem);
  line-height: 1.35;
  color: var(--chrome);
  max-width: 34rem;
}

.hero__stand {
  margin: 0 0 1.25rem;
  color: color-mix(in srgb, var(--leader) 82%, var(--chrome));
  max-width: 32rem;
}

.hero__stamp {
  display: inline-block;
  margin: 0;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--oxide);
  border: 1px solid color-mix(in srgb, var(--oxide) 55%, transparent);
  padding: 0.4rem 0.7rem;
  animation: stamp-pulse 2.8s ease-in-out infinite;
}

@keyframes spool-drift {
  from { background-position: 0 0, 0 0, 0 0, 0 0, 0 0, 0 0; }
  to { background-position: 0 0, 0 0, 0 0, 0 0, 0 0, 2.2rem 0; }
}

@keyframes jcard-in {
  from { opacity: 0; transform: translateY(1.5rem) rotate(8deg); }
  to { opacity: 1; transform: translateY(0) rotate(4deg); }
}

@keyframes brand-rise {
  from { opacity: 0; transform: translateY(0.8rem); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes stamp-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(232, 93, 4, 0.15); }
  50% { box-shadow: 0 0 0 6px rgba(232, 93, 4, 0); }
}

.panel {
  padding: clamp(2.5rem, 6vw, 4rem) 0;
}

.panel--deck {
  background: color-mix(in srgb, var(--ink) 4%, transparent);
  border-block: 1px solid color-mix(in srgb, var(--chrome-dim) 35%, transparent);
}

.eyebrow {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--oxide);
}

.panel h2 {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.lede {
  display: grid;
  gap: 1rem;
  max-width: 42rem;
}

.library {
  display: grid;
  gap: 1.25rem;
}

.entry {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem 1.25rem;
  padding: 1.1rem 0;
  border-top: 1px solid color-mix(in srgb, var(--ink) 12%, transparent);
}

.entry:last-child {
  border-bottom: 1px solid color-mix(in srgb, var(--ink) 12%, transparent);
}

.entry__id {
  margin: 0.15rem 0 0;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--oxide);
  white-space: nowrap;
}

.entry h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.25;
}

.entry h3 a {
  color: var(--ink);
  text-decoration: none;
}

.entry h3 a:hover {
  color: var(--oxide);
}

.entry p {
  margin: 0;
  color: color-mix(in srgb, var(--ink) 78%, transparent);
}

.standards,
.not-list {
  margin: 0;
  padding-left: 1.15rem;
  max-width: 44rem;
}

.standards li,
.not-list li {
  margin-bottom: 0.65rem;
}

.faq details {
  border-top: 1px solid color-mix(in srgb, var(--ink) 12%, transparent);
  padding: 0.85rem 0;
}

.faq details:last-child {
  border-bottom: 1px solid color-mix(in srgb, var(--ink) 12%, transparent);
}

.faq summary {
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 650;
  font-size: 1.05rem;
}

.article__head {
  padding: clamp(2.5rem, 7vw, 4rem) 0 0;
}

.article__meta {
  margin: 0.5rem 0 0;
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: color-mix(in srgb, var(--ink) 65%, transparent);
}

.prose {
  max-width: 42rem;
}

.prose h1 {
  margin: 0.2rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.prose h2 {
  margin: 2rem 0 0.75rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
}

.prose p,
.prose li {
  margin: 0 0 1rem;
}

.defs dt {
  font-family: var(--font-display);
  font-weight: 700;
  margin-top: 1rem;
}

.defs dd {
  margin: 0.25rem 0 0;
}

.backlink {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
}

.colophon {
  margin-top: 2rem;
  padding: 2rem 0 2.5rem;
  background: var(--shell);
  color: var(--chrome);
}

.colophon a {
  color: var(--chrome);
  text-decoration: none;
}

.colophon a:hover {
  color: var(--oxide);
}

.colophon__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.colophon__note {
  margin: 0;
  font-size: 0.95rem;
  max-width: 40rem;
  color: color-mix(in srgb, var(--chrome) 85%, transparent);
}

@media (max-width: 720px) {
  .hero__jcard {
    opacity: 0.35;
    width: 38vw;
    right: -4%;
    top: 8%;
  }

  .entry {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }
}