:root {
  --bg: #0c0f14;
  --bg-elev: #12171f;
  --bg-soft: #181e28;
  --ink: #e8edf5;
  --muted: #8b97a8;
  --dim: #5a6575;
  --line: rgba(232, 237, 245, 0.08);
  --accent: #c4a35a;
  --accent-2: #6ec6c0;
  --danger: #e07a5f;
  --ready: #5cb87a;
  --research: #d4a017;
  --radius: 16px;
  --font: "DM Sans", system-ui, sans-serif;
  --serif: "Instrument Serif", Georgia, serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --max: 1120px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  min-height: 100vh;
}

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  z-index: 50;
}

.bg-glow {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(110, 198, 192, 0.12), transparent 55%),
    radial-gradient(ellipse 50% 40% at 90% 20%, rgba(196, 163, 90, 0.08), transparent 50%);
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0.75rem;
  z-index: 100;
  padding: 0.55rem 0.9rem;
  border-radius: 8px;
  background: var(--accent);
  color: #14120c;
  font-weight: 600;
  font-size: 0.85rem;
}

.skip-link:focus {
  left: 0.75rem;
}

code,
.mono {
  font-family: var(--mono);
  font-size: 0.88em;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1.5rem;
  max-width: var(--max);
  margin: 0 auto;
  backdrop-filter: blur(14px);
  background: rgba(12, 15, 20, 0.75);
  border-bottom: 1px solid var(--line);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  font-size: 1.05rem;
  color: var(--ink);
}

.logo-mark {
  color: var(--ink);
  flex-shrink: 0;
}

.nav nav {
  display: flex;
  gap: 1.15rem;
  font-size: 0.88rem;
  color: var(--muted);
}

.nav nav a:hover {
  color: var(--ink);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.15rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.92rem;
  border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #a8843c);
  color: #14120c;
}

.btn-secondary {
  border-color: var(--line);
  background: var(--bg-soft);
}

.btn-ghost {
  border-color: var(--line);
  color: var(--muted);
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
}

main {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

.hero {
  padding: 3.75rem 0 2.5rem;
  text-align: center;
}

.eyebrow {
  color: var(--accent-2);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 600;
  margin: 0 0 1.15rem;
}

.hero h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.5rem, 5.8vw, 4rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 auto 1.2rem;
  max-width: 16ch;
}

.hero h1 em {
  font-style: italic;
  color: var(--accent);
}

.lede {
  max-width: 54ch;
  margin: 0 auto 1.6rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.lede strong {
  color: var(--ink);
  font-weight: 600;
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.hero-stage {
  display: grid;
  gap: 1.5rem;
}

.arch-strip,
.tier-diagram,
.iso-diagram,
.trust-flow,
.jdx-map,
.lifecycle-diagram {
  margin: 0;
}

.arch-strip figcaption,
.tier-diagram figcaption,
.iso-diagram figcaption,
.trust-flow figcaption,
.jdx-map figcaption,
.lifecycle-diagram figcaption {
  margin-top: 0.65rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--dim);
}

.arch-svg,
.tier-svg,
.iso-svg,
.trust-svg,
.jdx-svg,
.lifecycle-svg {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--line);
}

.lifecycle-diagram {
  margin-bottom: 1.75rem;
}

.hero-card {
  text-align: left;
  max-width: 640px;
  margin: 0 auto;
  background: linear-gradient(180deg, var(--bg-elev), var(--bg-soft));
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px);
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
}

.mock-chrome {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.28);
  flex-wrap: wrap;
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #3a4250;
}

.dot:nth-child(1) {
  background: #e07a5f;
}
.dot:nth-child(2) {
  background: #d4a017;
}
.dot:nth-child(3) {
  background: #5cb87a;
}

.mock-title {
  margin-left: 0.5rem;
  font-size: 0.8rem;
  color: var(--muted);
  flex: 1;
  min-width: 8rem;
}

.chip {
  font-size: 0.68rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--line);
}

.chip-live {
  color: var(--accent-2);
  border-color: rgba(110, 198, 192, 0.35);
}

.chip-pack {
  color: var(--accent);
  border-color: rgba(196, 163, 90, 0.35);
}

.mock-body {
  padding: 1rem;
  display: grid;
  gap: 0.75rem;
}

.mock-item {
  padding: 1rem 1.1rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
}

.mock-item.dim {
  opacity: 0.78;
  border-style: dashed;
}

.mock-meta {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}

.badge {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.18rem 0.45rem;
  border-radius: 6px;
  background: #243042;
}

.badge.ready {
  background: rgba(92, 184, 122, 0.18);
  color: var(--ready);
}
.badge.research {
  background: rgba(212, 160, 23, 0.18);
  color: var(--research);
}
.badge.pack,
.badge.verify {
  color: var(--accent-2);
}
.badge.pub,
.badge.tier2 {
  color: var(--accent);
}

.mock-item h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
}

.mock-item p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--muted);
}

.mock-item code {
  color: var(--accent-2);
  font-size: 0.8em;
}

.mock-sources {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.65rem;
}

.mock-sources .src {
  font-size: 0.7rem;
  font-family: var(--mono);
  padding: 0.2rem 0.45rem;
  border-radius: 6px;
  background: rgba(110, 198, 192, 0.08);
  color: var(--accent-2);
  border: 1px solid rgba(110, 198, 192, 0.2);
}

.progress-bar {
  margin-top: 0.75rem;
  height: 4px;
  border-radius: 99px;
  background: #243042;
  overflow: hidden;
}

.progress-bar span {
  display: block;
  height: 100%;
  width: 55%;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--accent), var(--research));
  animation: pulse 1.8s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 0.55;
    transform: translateX(0);
  }
  50% {
    opacity: 1;
    transform: translateX(40%);
  }
}

.section {
  padding: 3.75rem 0;
}

.section.alt {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin: 0 -1.5rem;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  background: rgba(255, 255, 255, 0.015);
}

.section h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.85rem, 3.4vw, 2.55rem);
  margin: 0 0 0.7rem;
  letter-spacing: -0.02em;
}

.section h2 code {
  font-size: 0.75em;
  color: var(--accent-2);
}

.section-lede {
  color: var(--muted);
  max-width: 52ch;
  margin: 0 0 2rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.feature {
  padding: 1.35rem;
  border-radius: var(--radius);
  background: var(--bg-elev);
  border: 1px solid var(--line);
}

.feature-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 0.75rem;
}

.feature-icon svg {
  width: 100%;
  height: 100%;
}

.feature .num {
  display: block;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 0.55rem;
  font-family: var(--mono);
}

.feature h3 {
  margin: 0 0 0.5rem;
  font-size: 1.08rem;
}

.feature p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.feature code {
  color: var(--accent-2);
  font-size: 0.85em;
}

.compare {
  margin-top: 2.5rem;
}

.compare-title {
  margin: 0 0 1rem;
  font-size: 1rem;
  color: var(--muted);
  font-weight: 600;
}

.compare-table {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-elev);
}

.compare-row {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr 1.15fr;
  gap: 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.88rem;
}

.compare-row:last-child {
  border-bottom: none;
}

.compare-row > div {
  padding: 0.85rem 1rem;
  color: var(--muted);
  border-right: 1px solid var(--line);
}

.compare-row > div:last-child {
  border-right: none;
}

.compare-row.head {
  background: rgba(0, 0, 0, 0.25);
  font-weight: 700;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--dim);
}

.compare-row.head > div {
  color: var(--dim);
}

.compare-row > div[role="rowheader"] {
  color: var(--ink);
  font-weight: 600;
}

.compare-row > div.highlight,
.compare-row.head > div.highlight {
  background: rgba(196, 163, 90, 0.08);
  color: var(--ink);
  font-weight: 600;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 1.75rem;
}

.tech-card {
  padding: 1.25rem;
  border-radius: var(--radius);
  background: var(--bg-elev);
  border: 1px solid var(--line);
}

.tech-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}

.tech-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.tech-card code {
  color: var(--accent-2);
}

.api-strip {
  margin-top: 2rem;
  padding: 1.35rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--bg-elev);
}

.api-strip h3 {
  margin: 0 0 1rem;
  font-size: 0.95rem;
  color: var(--muted);
}

.api-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.65rem 1.25rem;
}

.api-grid > div {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.55rem 0.65rem;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.22);
}

.api-grid code {
  color: var(--accent-2);
  font-size: 0.82rem;
}

.api-grid span {
  color: var(--dim);
  font-size: 0.8rem;
  font-family: var(--font);
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
  counter-reset: step;
}

.steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.35rem 1rem;
  padding: 1.1rem 1.25rem;
  border-radius: var(--radius);
  background: var(--bg-elev);
  border: 1px solid var(--line);
  counter-increment: step;
}

.steps li::before {
  content: counter(step, decimal-leading-zero);
  font-weight: 700;
  color: var(--accent);
  font-size: 0.85rem;
  font-family: var(--mono);
  grid-row: span 2;
  padding-top: 0.2rem;
}

.steps strong {
  font-size: 1.02rem;
}

.steps span {
  color: var(--muted);
  font-size: 0.95rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 1.25rem;
  align-items: start;
}

.trust-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.75rem;
}

.trust-list li {
  padding: 1rem 1.15rem;
  border-radius: 12px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.94rem;
}

.trust-list strong {
  color: var(--ink);
}

.trust-list code {
  color: var(--accent-2);
  font-size: 0.82em;
}

.callout {
  padding: 1.5rem;
  border-radius: var(--radius);
  background: linear-gradient(
    160deg,
    rgba(196, 163, 90, 0.12),
    rgba(110, 198, 192, 0.06)
  );
  border: 1px solid rgba(196, 163, 90, 0.28);
}

.callout h3 {
  margin: 0 0 0.65rem;
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.45rem;
}

.callout p {
  margin: 0 0 0.75rem;
  color: var(--muted);
}

.fine {
  font-size: 0.85rem !important;
  color: var(--muted);
  opacity: 0.9;
}

.jdx-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.25rem;
  align-items: start;
}

.jdx-weights {
  padding: 1.35rem;
  border-radius: var(--radius);
  background: var(--bg-elev);
  border: 1px solid var(--line);
}

.jdx-weights h3 {
  margin: 0 0 1rem;
  font-size: 1rem;
}

.weight-bars {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.weight-bars li {
  display: grid;
  grid-template-columns: 7.5rem 1fr 2.2rem;
  gap: 0.65rem;
  align-items: center;
  font-size: 0.82rem;
  color: var(--muted);
}

.weight-bars .bar {
  height: 8px;
  border-radius: 99px;
  background: #243042;
  overflow: hidden;
}

.weight-bars .bar i {
  display: block;
  height: 100%;
  width: var(--w, 50%);
  border-radius: 99px;
  background: linear-gradient(90deg, var(--accent-2), var(--accent));
}

.weight-bars code {
  text-align: right;
  color: var(--accent);
  font-size: 0.78rem;
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.stack-grid > div {
  padding: 1.25rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--bg-elev);
}

.stack-grid h3 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
}

.stack-grid ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.stack-grid li + li {
  margin-top: 0.35rem;
}

.code-panel {
  margin-top: 1.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  overflow: hidden;
  background: #0a0d12;
}

.code-chrome {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--line);
  color: var(--dim);
  font-size: 0.8rem;
  font-family: var(--font);
}

.code-panel pre {
  margin: 0;
  padding: 1.15rem 1.25rem;
  overflow: auto;
  color: #c8d0dc;
  font-size: 0.85rem;
  line-height: 1.5;
  font-family: var(--mono);
}

.cta {
  text-align: center;
  padding-bottom: 2rem;
}

.cta h2 {
  max-width: 18ch;
  margin-left: auto;
  margin-right: auto;
}

.cta p {
  max-width: 48ch;
  margin: 0.75rem auto;
  color: var(--muted);
}

.footer {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.5rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.85rem;
}

.footer a:hover {
  color: var(--ink);
}

@media (max-width: 900px) {
  .nav nav {
    display: none;
  }
  .grid-3,
  .grid-2,
  .stack-grid,
  .tech-grid,
  .api-grid,
  .jdx-layout {
    grid-template-columns: 1fr;
  }
  .compare-row {
    grid-template-columns: 1fr 1fr;
  }
  .compare-row > div:nth-child(2),
  .compare-row > div:nth-child(3) {
    display: none;
  }
  .compare-row.head > div:nth-child(2),
  .compare-row.head > div:nth-child(3) {
    display: none;
  }
  .hero {
    padding-top: 2.75rem;
  }
  .weight-bars li {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .btn:hover {
    transform: none;
  }
  .progress-bar span {
    animation: none;
  }
}