:root {
  color-scheme: dark;
  --bg: #070814;
  --bg-soft: #0e1022;
  --panel: rgba(255, 255, 255, 0.06);
  --panel-strong: rgba(255, 255, 255, 0.1);
  --text: #f5f7ff;
  --muted: #aeb6d9;
  --line: rgba(255, 255, 255, 0.12);
  --accent: #9b7cff;
  --accent-2: #56b6ff;
  --gold: #e7c873;
  --radius: 8px;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(155, 124, 255, 0.18), transparent 36rem),
    radial-gradient(circle at top right, rgba(86, 182, 255, 0.12), transparent 34rem),
    linear-gradient(180deg, #070814 0%, #0b0d1c 48%, #070814 100%);
  color: var(--text);
  line-height: 1.8;
}

body > header,
body > main,
body > footer {
  width: min(1120px, calc(100% - 32px));
  margin-inline: auto;
}

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

code {
  color: var(--gold);
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(7, 8, 20, 0.84);
}

.brand {
  display: grid;
  gap: 2px;
}

.brand-kicker {
  font-size: 0.76rem;
  color: var(--muted);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.brand-title {
  font-size: 1.05rem;
  font-weight: 800;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.site-nav a {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.03);
}

.site-nav a:hover {
  color: var(--text);
  border-color: rgba(155, 124, 255, 0.55);
  background: rgba(155, 124, 255, 0.12);
}

.section {
  padding: 64px 0;
  border-top: 1px solid var(--line);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.8fr);
  gap: 40px;
  align-items: end;
  min-height: 72vh;
  padding: 72px 0 56px;
}

.eyebrow {
  color: var(--gold);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.82rem;
}

.hero h1 {
  max-width: 8ch;
  margin: 16px 0 24px;
  font-size: clamp(3.4rem, 9vw, 7.4rem);
  line-height: 0.98;
}

.hero p {
  max-width: 760px;
  color: var(--muted);
  font-size: 1.08rem;
}

.hero-lead {
  font-size: 1.2rem;
}

.jp-lead {
  border-left: 2px solid rgba(231, 200, 115, 0.55);
  padding-left: 16px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(155, 124, 255, 0.24), rgba(86, 182, 255, 0.16));
  color: var(--text);
  font-weight: 700;
}

.button.secondary {
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
}

.hero-panel,
.note-card,
.card,
.compact-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.hero-panel {
  border-color: rgba(86, 182, 255, 0.3);
  background:
    linear-gradient(180deg, rgba(86, 182, 255, 0.08), transparent),
    rgba(255, 255, 255, 0.055);
}

.highlight-card {
  border-color: rgba(231, 200, 115, 0.28);
  background:
    linear-gradient(135deg, rgba(231, 200, 115, 0.08), transparent 45%),
    var(--panel);
}

.metric {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.metric:last-child {
  border-bottom: 0;
}

.metric span {
  color: var(--accent-2);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.section-title {
  max-width: 780px;
  margin-bottom: 28px;
}

.section-title h2 {
  margin: 8px 0 12px;
  font-size: clamp(2rem, 5vw, 3.8rem);
  line-height: 1.08;
}

.section-title p,
.card p,
.compact-card p,
.note-card p,
.roadmap-list,
.failure-list span {
  color: var(--muted);
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(320px, 1fr);
  gap: 36px;
  align-items: start;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 32px 0;
}

.four-grid,
.application-grid,
.article-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card h3,
.compact-card h3 {
  margin-top: 0;
  line-height: 1.25;
}

.card:hover,
.compact-card:hover {
  border-color: rgba(86, 182, 255, 0.36);
  background: var(--panel-strong);
}

.failure-list {
  display: grid;
  gap: 10px;
  margin-top: 28px;
}

.failure-list article {
  display: grid;
  grid-template-columns: minmax(190px, 0.38fr) 1fr;
  gap: 18px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.comparison-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.comparison-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  background: rgba(255, 255, 255, 0.04);
}

.comparison-table caption {
  padding: 16px;
  color: var(--muted);
  text-align: left;
  border-bottom: 1px solid var(--line);
}

.comparison-table th,
.comparison-table td {
  padding: 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.comparison-table th {
  color: var(--text);
  background: rgba(155, 124, 255, 0.12);
}

.research-map-card .tag-list,
.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.tag,
.badge,
.status-pill {
  display: inline-flex;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
  font-size: 0.86rem;
}

.status-pill {
  color: var(--gold);
}

.stack {
  display: grid;
  gap: 14px;
}

.roadmap-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.roadmap-list li {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
}

.loading,
.error {
  color: var(--muted);
}

.site-footer {
  padding: 28px 0 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 900px) {
  .hero,
  .grid,
  .four-grid,
  .application-grid,
  .article-grid,
  .two-column,
  .roadmap-list,
  .failure-list article {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  body > header,
  body > main,
  body > footer {
    width: min(100% - 24px, 1120px);
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    gap: 8px;
  }

  .site-nav a {
    padding: 7px 10px;
  }

  .hero {
    min-height: auto;
    padding: 48px 0 36px;
  }

  .hero h1 {
    font-size: clamp(3rem, 18vw, 5rem);
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }
}