:root {
  --bg-1: #071019;
  --bg-2: #0b1621;
  --bg-3: #122635;
  --panel: rgba(7, 15, 24, 0.8);
  --panel-strong: rgba(9, 19, 31, 0.94);
  --line: rgba(104, 201, 255, 0.16);
  --line-strong: rgba(104, 201, 255, 0.3);
  --text: #eef6ff;
  --muted: #9db2c4;
  --accent: #6ef3ff;
  --accent-2: #7affb2;
  --accent-3: #ff8c42;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  --radius: 24px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  font-family: "Rajdhani", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(110, 243, 255, 0.12), transparent 32%),
    radial-gradient(circle at 82% 14%, rgba(122, 255, 178, 0.12), transparent 28%),
    radial-gradient(circle at 70% 82%, rgba(255, 140, 66, 0.1), transparent 24%),
    linear-gradient(145deg, var(--bg-1), var(--bg-2) 50%, var(--bg-3));
}

body.motion-off * {
  animation: none !important;
  transition-duration: 0.01ms !important;
}

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

h1, h2, h3, h4 {
  margin: 0;
  font-family: "Orbitron", sans-serif;
  line-height: 1.04;
  letter-spacing: 0.02em;
}

h1 {
  font-size: clamp(2.7rem, 6vw, 5.4rem);
  max-width: 10ch;
}

h2 { font-size: clamp(2rem, 4vw, 3.3rem); }
h3 { font-size: clamp(1.4rem, 2.4vw, 2rem); }
h4 { font-size: 1.4rem; }

p {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
  font-size: 1.08rem;
}

.bg-grid,
.bg-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -2;
}

.bg-grid {
  background-image:
    linear-gradient(rgba(104, 201, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(104, 201, 255, 0.08) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(circle at center, black 48%, transparent 100%);
  opacity: 0.75;
}

.bg-glow {
  z-index: -1;
  filter: blur(40px);
  opacity: 0.75;
}

.bg-glow--left {
  background: radial-gradient(circle at 16% 20%, rgba(110, 243, 255, 0.14), transparent 32%);
}

.bg-glow--right {
  background: radial-gradient(circle at 84% 78%, rgba(122, 255, 178, 0.14), transparent 28%);
}

.hero,
.overview,
.collection,
.footer {
  width: min(1280px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.95fr);
  gap: 34px;
  align-items: center;
  padding: 64px 0 40px;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 14px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
}

.hero__lede {
  margin-top: 18px;
  max-width: 58ch;
  font-size: 1.14rem;
}

.hero__chips,
.hero__actions,
.gpu-card__tags,
.overview__stats {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero__chips { margin-top: 24px; }

.chip,
.button,
.gpu-card__tags span,
.gpu-card__index,
.gpu-card__footer span:first-child,
.stat-card__label {
  font-family: "IBM Plex Mono", monospace;
}

.chip {
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.hero__actions { margin-top: 24px; }

.button {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px 18px;
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.button:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.2);
}

.button--primary {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #06111a;
}

.button--ghost { background: rgba(255, 255, 255, 0.04); }

.gpu-panel,
.overview,
.stat-card,
.era__head,
.gpu-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.gpu-panel {
  overflow: hidden;
  position: relative;
}

.gpu-panel::after {
  content: "";
  position: absolute;
  inset: auto -10% -28% -10%;
  height: 40%;
  background: radial-gradient(circle, rgba(110, 243, 255, 0.16), transparent 62%);
  animation: panelPulse 7s ease-in-out infinite;
}

.gpu-panel__top {
  display: grid;
  grid-template-columns: auto auto auto 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #75d7ff;
}

.status-dot--warm { background: #ffa04b; }
.status-dot--green { background: #78ffb6; }

.gpu-panel__label,
.gpu-panel__badge {
  font-size: 0.95rem;
  font-weight: 600;
}

.gpu-panel__badge { color: var(--accent-2); }

.gpu-panel__body {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(240px, 0.9fr);
  gap: 18px;
  padding: 24px;
  align-items: center;
}

.gpu-core {
  position: relative;
  min-height: 320px;
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01)),
    linear-gradient(90deg, transparent 0 48%, rgba(110, 243, 255, 0.08) 48% 52%, transparent 52% 100%);
  overflow: hidden;
}

.gpu-core__rings {
  position: absolute;
  inset: 50%;
  width: 220px;
  height: 220px;
  transform: translate(-50%, -50%);
  border-radius: 32px;
  border: 1px solid rgba(110, 243, 255, 0.22);
  box-shadow: 0 0 0 18px rgba(110, 243, 255, 0.04), 0 0 0 42px rgba(122, 255, 178, 0.03);
}

.gpu-core__chip {
  position: absolute;
  inset: 50%;
  width: 112px;
  height: 112px;
  transform: translate(-50%, -50%);
  display: grid;
  place-items: center;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(110, 243, 255, 0.18), rgba(122, 255, 178, 0.15));
  border: 1px solid rgba(110, 243, 255, 0.36);
  font-family: "Orbitron", sans-serif;
  font-size: 1.6rem;
  letter-spacing: 0.12em;
  box-shadow: 0 0 30px rgba(110, 243, 255, 0.2);
}

.gpu-core__trace {
  position: absolute;
  background: linear-gradient(90deg, transparent, rgba(110, 243, 255, 0.8), transparent);
  opacity: 0.8;
  animation: traceMove 3.4s linear infinite;
}

.gpu-core__trace--a,
.gpu-core__trace--b {
  width: 160px;
  height: 2px;
}

.gpu-core__trace--c,
.gpu-core__trace--d {
  width: 2px;
  height: 140px;
  background: linear-gradient(180deg, transparent, rgba(122, 255, 178, 0.8), transparent);
}

.gpu-core__trace--a { top: 36%; left: 6%; }
.gpu-core__trace--b { top: 62%; right: 6%; animation-delay: 0.8s; }
.gpu-core__trace--c { top: 8%; left: 30%; }
.gpu-core__trace--d { bottom: 8%; right: 30%; animation-delay: 1.2s; }

.spec-stack {
  display: grid;
  gap: 12px;
}

.spec-stack__item {
  display: grid;
  gap: 6px;
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(255, 255, 255, 0.04);
}

.spec-stack__item--accent {
  background: linear-gradient(145deg, rgba(110, 243, 255, 0.12), rgba(122, 255, 178, 0.08));
}

.spec-stack__year {
  color: var(--accent);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.88rem;
}

.spec-stack__text {
  color: var(--text);
  font-size: 1.02rem;
}

.overview {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 18px;
  padding: 26px;
  margin-top: 8px;
}

.overview__intro p:last-child { margin-top: 16px; }
.overview__stats { align-items: stretch; }

.stat-card {
  flex: 1 1 220px;
  padding: 20px;
}

.stat-card strong {
  display: block;
  margin: 6px 0 8px;
  font-size: 1.45rem;
  color: var(--text);
}

.stat-card--accent {
  background: linear-gradient(145deg, rgba(110, 243, 255, 0.12), rgba(255, 140, 66, 0.08));
}

.collection { padding: 48px 0 84px; }

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.section-head__note { max-width: 40ch; }
.era + .era { margin-top: 34px; }

.era__head {
  padding: 20px 22px;
  margin-bottom: 16px;
  background: linear-gradient(90deg, rgba(110, 243, 255, 0.06), transparent 40%), var(--panel-strong);
}

.era__head p:last-child { margin-top: 10px; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px;
}

.gpu-card {
  display: flex;
  flex-direction: column;
  min-height: 280px;
  gap: 12px;
  padding: 18px;
  position: relative;
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.gpu-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(125deg, rgba(110, 243, 255, 0.09), transparent 34%), linear-gradient(180deg, transparent 0 78%, rgba(255, 140, 66, 0.08) 100%);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.gpu-card::after {
  content: "";
  position: absolute;
  inset: auto -30% -54px auto;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(110, 243, 255, 0.12), transparent 66%);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.gpu-card:hover,
.gpu-card:focus-visible {
  transform: translateY(-6px);
  border-color: var(--line-strong);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.28);
}

.gpu-card:hover::before,
.gpu-card:hover::after,
.gpu-card:focus-visible::before,
.gpu-card:focus-visible::after {
  opacity: 1;
}

.gpu-card > * {
  position: relative;
  z-index: 1;
}

.gpu-card__index {
  width: fit-content;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(110, 243, 255, 0.18);
  background: rgba(110, 243, 255, 0.08);
  color: var(--accent);
  font-size: 0.82rem;
}

.gpu-card__kicker {
  color: var(--text);
  font-weight: 600;
}

.gpu-card__tags { margin-top: auto; }

.gpu-card__tags span {
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.84rem;
  color: var(--text);
}

.gpu-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-top: 4px;
  color: var(--text);
  font-weight: 600;
}

.gpu-card__footer span:last-child { color: var(--accent); }

.footer {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  padding: 0 0 30px;
  color: var(--muted);
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes traceMove {
  0%, 100% { opacity: 0.25; transform: scaleX(0.9); }
  50% { opacity: 1; transform: scaleX(1.12); }
}

@keyframes panelPulse {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-10px) scale(1.02); }
}

@media (max-width: 1060px) {
  .hero,
  .overview { grid-template-columns: 1fr; }

  .gpu-panel__body { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .hero,
  .overview,
  .collection,
  .footer {
    width: min(100% - 24px, 1280px);
  }

  .hero { padding-top: 40px; }

  .gpu-panel__top { grid-template-columns: auto auto auto 1fr; }
  .gpu-panel__badge { grid-column: 1 / -1; }
  .gpu-core { min-height: 260px; }
}

body.detail-page .bg-grid {
  opacity: 0.56;
}

.progress-rail {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: rgba(255, 255, 255, 0.04);
  z-index: 20;
}

.progress-rail__bar {
  width: 0;
  height: 100%;
  background: linear-gradient(120deg, var(--accent), var(--accent-3));
  box-shadow: 0 0 18px rgba(110, 243, 255, 0.45);
}

.detail-shell,
.article,
.footer--detail {
  width: min(1280px, calc(100% - 32px));
  margin: 0 auto;
}

.detail-shell {
  padding: 28px 0 88px;
}

.breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  backdrop-filter: blur(16px);
}

.breadcrumb a:hover {
  color: var(--accent);
}

.subhero {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(320px, 0.96fr);
  gap: 24px;
  align-items: stretch;
}

.subhero__panel,
.subhero__side,
.section,
.toc-card,
.fact-card,
.reading-card,
.legacy-card,
.code-card,
.pull-quote,
.stat-strip__item,
.schematic-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.subhero__panel,
.subhero__side,
.section,
.toc-card {
  padding: 24px;
}

.subhero__title {
  max-width: none;
  font-size: clamp(2.6rem, 5vw, 4.7rem);
}

.subhero__lede {
  margin-top: 18px;
  max-width: 66ch;
}

.subhero__meta,
.subhero__actions,
.stat-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.subhero__meta {
  margin-top: 22px;
}

.subhero__actions {
  margin-top: 20px;
}

.subhero__side {
  display: grid;
  gap: 14px;
  align-content: start;
}

.hero-board {
  position: relative;
  min-height: 260px;
  border-radius: 26px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background:
    radial-gradient(circle at center, rgba(110, 243, 255, 0.08), transparent 34%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
}

.hero-board__trace,
.hero-board__pin,
.hero-board__socket,
.hero-board__screen {
  position: absolute;
}

.hero-board__socket {
  inset: 50%;
  width: 148px;
  height: 148px;
  transform: translate(-50%, -50%);
  border-radius: 20px;
  border: 1px solid rgba(110, 243, 255, 0.22);
  box-shadow: 0 0 0 16px rgba(110, 243, 255, 0.04), 0 0 0 34px rgba(255, 140, 66, 0.03);
}

.hero-board__chip {
  position: absolute;
  inset: 50%;
  width: 94px;
  height: 94px;
  transform: translate(-50%, -50%);
  display: grid;
  place-items: center;
  border-radius: 16px;
  border: 1px solid rgba(110, 243, 255, 0.32);
  background: linear-gradient(145deg, rgba(110, 243, 255, 0.18), rgba(255, 140, 66, 0.08));
  font-family: "Orbitron", sans-serif;
  letter-spacing: 0.1em;
}

.hero-board__pin {
  width: 2px;
  height: 54px;
  background: linear-gradient(180deg, transparent, rgba(122, 255, 178, 0.85), transparent);
  animation: traceMove 3s linear infinite;
}

.hero-board__pin--1 { top: 34px; left: 50%; }
.hero-board__pin--2 { bottom: 34px; left: 50%; animation-delay: 0.6s; }

.hero-board__trace {
  height: 2px;
  width: 140px;
  background: linear-gradient(90deg, transparent, rgba(110, 243, 255, 0.8), transparent);
  animation: traceMove 3.2s linear infinite;
}

.hero-board__trace--1 { top: 50%; left: 16px; }
.hero-board__trace--2 { top: 50%; right: 16px; animation-delay: 1s; }

.hero-board__screen {
  right: 16px;
  bottom: 16px;
  left: 16px;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(5, 12, 19, 0.86);
  border: 1px solid rgba(255, 255, 255, 0.06);
  font-family: "IBM Plex Mono", monospace;
  color: #baffc8;
  font-size: 0.84rem;
}

.hero-board__screen span {
  color: #ffd1ad;
}

.stat-strip__item {
  flex: 1 1 150px;
  padding: 16px;
}

.stat-strip__item strong {
  display: block;
  margin-bottom: 4px;
  color: var(--text);
  font-size: 1.14rem;
}

.article {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(260px, 0.22fr);
  gap: 24px;
  margin-top: 26px;
  align-items: start;
}

.article__main {
  display: grid;
  gap: 22px;
}

.article__side {
  position: sticky;
  top: 18px;
  display: grid;
  gap: 18px;
}

.toc-card h3,
.section h2 {
  margin: 0;
}

.toc-list {
  display: grid;
  gap: 8px;
  margin-top: 16px;
}

.toc-list a {
  display: block;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid transparent;
  color: var(--muted);
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.toc-list a:hover,
.toc-list a.is-active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(110, 243, 255, 0.18);
}

.section {
  scroll-margin-top: 24px;
}

.section__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.section__lede {
  max-width: 58ch;
}

.longform p + p {
  margin-top: 12px;
}

.info-grid,
.legacy-grid,
.reading-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 14px;
}

.fact-card,
.reading-card,
.legacy-card,
.code-card,
.schematic-card {
  padding: 18px;
}

.fact-card h3,
.reading-card h3,
.legacy-card h3 {
  margin: 0 0 8px;
  font-size: 1.2rem;
}

.label {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--accent);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

.split-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(260px, 0.95fr);
  gap: 16px;
}

.code-card pre,
.schematic-card pre {
  margin: 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.84rem;
  color: #d5fff2;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  overflow: hidden;
}

.compare-table th,
.compare-table td {
  text-align: left;
  vertical-align: top;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.compare-table th {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--accent);
  background: rgba(255, 255, 255, 0.04);
}

.compare-table tr:last-child td {
  border-bottom: none;
}

.timeline-steps {
  display: grid;
  gap: 10px;
}

.timeline-steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  padding: 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.step-badge {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: rgba(110, 243, 255, 0.08);
  color: var(--accent);
  font-family: "IBM Plex Mono", monospace;
  font-weight: 600;
}

.pull-quote {
  padding: 18px;
  font-size: 1.08rem;
  color: var(--text);
  line-height: 1.7;
}

.pull-quote cite {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-style: normal;
}

.footer--detail {
  padding-bottom: 30px;
}

@media (max-width: 1100px) {
  .subhero,
  .article,
  .split-panel {
    grid-template-columns: 1fr;
  }

  .article__side {
    position: static;
  }
}

@media (max-width: 720px) {
  .detail-shell,
  .article,
  .footer--detail {
    width: min(100% - 24px, 1280px);
  }

  .subhero__title {
    font-size: clamp(2.2rem, 10vw, 3.4rem);
  }
}