:root {
  --bg: #07101d;
  --bg-soft: #0b1628;
  --panel: rgba(10, 19, 34, 0.72);
  --panel-strong: rgba(8, 15, 28, 0.92);
  --border: rgba(148, 163, 184, 0.15);
  --text: #e5eefc;
  --muted: #97a9c4;
  --blue: #59a8ff;
  --violet: #9b7bff;
  --green: #43d3a4;
  --amber: #ffbc5c;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  --radius: 22px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background: radial-gradient(circle at top, #10203a 0%, var(--bg) 46%, #040914 100%);
  color: var(--text);
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
.container { width: min(1180px, calc(100% - 2rem)); margin: 0 auto; }
.ambient {
  position: fixed; inset: auto; width: 34rem; height: 34rem; border-radius: 999px; filter: blur(120px);
  opacity: 0.18; pointer-events: none; z-index: 0;
}
.ambient-a { top: -8rem; left: -8rem; background: #245dff; }
.ambient-b { top: 15rem; right: -8rem; background: #7b4dff; }
.ambient-c { bottom: -10rem; left: 30%; background: #00a88a; }
.site-header {
  position: sticky; top: 0; z-index: 10; backdrop-filter: blur(18px);
  background: rgba(6, 12, 23, 0.65); border-bottom: 1px solid rgba(255,255,255,0.06);
}
.nav-shell { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1rem 0; }
.brand { display: inline-flex; align-items: center; gap: .85rem; }
.brand-mark {
  width: 2.4rem; height: 2.4rem; border-radius: 14px; display: grid; place-items: center; font-weight: 800;
  background: linear-gradient(135deg, var(--blue), var(--violet)); color: white; box-shadow: var(--shadow);
}
.brand strong { display: block; font-size: 1rem; }
.brand small { display: block; color: var(--muted); font-size: .72rem; }
.nav-links { display: flex; gap: 1.35rem; color: var(--muted); font-size: .95rem; }
.nav-links a:hover { color: var(--text); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem; border-radius: 999px;
  padding: .95rem 1.35rem; font-weight: 700; transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: linear-gradient(135deg, var(--blue), var(--violet)); color: white; box-shadow: var(--shadow); }
.btn-outline { border: 1px solid var(--border); color: var(--text); background: rgba(255,255,255,0.03); }
.hero { position: relative; z-index: 1; padding: 6rem 0 4rem; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 2rem; align-items: center; }
.eyebrow {
  display: inline-flex; padding: .45rem .8rem; margin-bottom: 1rem; font-size: .76rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .14em; color: #b7d4ff; border: 1px solid rgba(89,168,255,.25);
  background: rgba(89,168,255,.08); border-radius: 999px;
}
h1, h2, h3 { line-height: 1.1; margin: 0; }
h1 { font-size: clamp(2.8rem, 6vw, 5.6rem); letter-spacing: -0.05em; max-width: 12ch; }
h2 { font-size: clamp(2rem, 4vw, 3.4rem); letter-spacing: -0.04em; }
h3 { font-size: 1.2rem; }
.gradient {
  background: linear-gradient(135deg, #d9e9ff 0%, #85b4ff 38%, #b193ff 72%, #54d5b3 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-copy, .section-head p { color: var(--muted); font-size: 1.05rem; max-width: 62ch; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin: 2rem 0 1.4rem; }
.badge-row { display: flex; gap: .7rem; flex-wrap: wrap; }
.badge {
  padding: .55rem .85rem; border-radius: 999px; border: 1px solid rgba(148,163,184,.16); color: #dce9fc;
  background: rgba(255,255,255,.04); font-size: .85rem; font-weight: 600;
}
.glass {
  background: linear-gradient(180deg, rgba(11,22,40,.82), rgba(7,16,29,.92));
  border: 1px solid var(--border); box-shadow: var(--shadow); border-radius: var(--radius);
}
.hero-panel { padding: 1.2rem; }
.panel-head { color: var(--muted); font-size: .88rem; display: flex; align-items: center; gap: .6rem; margin-bottom: 1rem; }
.status-dot { width: .7rem; height: .7rem; border-radius: 50%; background: var(--green); box-shadow: 0 0 20px rgba(67,211,164,.8); }
.metric-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.metric-card { padding: 1rem; border-radius: 18px; background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.05); }
.metric-value { font-size: 2rem; font-weight: 800; }
.metric-label { color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; margin-top: .45rem; }
.signal-list { display: grid; gap: .8rem; margin-top: 1rem; }
.signal-list div { display: flex; justify-content: space-between; gap: 1rem; padding: .8rem 1rem; border-radius: 16px; background: rgba(255,255,255,.025); }
.signal-list span { color: var(--muted); }
.section { position: relative; z-index: 1; padding: 5rem 0; }
.section.alt { background: rgba(255,255,255,.02); border-top: 1px solid rgba(255,255,255,.05); border-bottom: 1px solid rgba(255,255,255,.05); }
.section-head { margin-bottom: 2rem; }
.grid { display: grid; gap: 1.25rem; }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cols-2 { grid-template-columns: repeat(2, 1fr); }
.card, .comparison-shell, .timeline-card, .doc-card { padding: 1.35rem; }
.card p, .doc-card span, .insight-list, .check-list, .timeline-card ul, .stack-item p, .footer-shell p { color: var(--muted); }
.comparison-shell { margin-top: 1.5rem; }
.comparison-header { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 1rem; }
.tab-row { display: flex; gap: .65rem; flex-wrap: wrap; }
.tab {
  border: 1px solid rgba(148,163,184,.14); background: rgba(255,255,255,.035); color: var(--muted);
  border-radius: 999px; padding: .7rem 1rem; font-weight: 700; cursor: pointer;
}
.tab.active { color: white; border-color: rgba(89,168,255,.35); background: rgba(89,168,255,.12); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }
.insight-list, .check-list, .timeline-card ul { margin: 0; padding-left: 1.1rem; }
.architecture-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 1.25rem; align-items: start; }
.mermaid { margin: 0; background: transparent; }
.stack-list { display: grid; gap: .9rem; }
.stack-item { display: grid; grid-template-columns: 3rem 1fr; gap: 1rem; padding: 1rem 1.1rem; }
.stack-item span {
  width: 3rem; height: 3rem; border-radius: 16px; display: grid; place-items: center; font-weight: 800;
  background: rgba(89,168,255,.12); color: #d8e8ff; border: 1px solid rgba(89,168,255,.22);
}
.timeline { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.timeline-phase { display: inline-flex; margin-bottom: .8rem; color: #d9e9ff; font-size: .75rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.docs-grid .doc-card { display: block; transition: transform .2s ease, border-color .2s ease; }
.docs-grid .doc-card:hover { transform: translateY(-2px); border-color: rgba(89,168,255,.28); }
.insights-grid { align-items: stretch; }
.insight-card {
  padding: 1.35rem;
  display: flex;
  flex-direction: column;
  gap: .95rem;
}
.insight-card h3 a { transition: color .2s ease; }
.insight-card h3 a:hover { color: #cfe0ff; }
.meta-line {
  color: #bad1f3;
  font-size: .82rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-weight: 700;
}
.tag-row {
  display: flex;
  gap: .55rem;
  flex-wrap: wrap;
  margin-top: auto;
}
.tag {
  padding: .45rem .7rem;
  border-radius: 999px;
  font-size: .76rem;
  color: #dce8fb;
  border: 1px solid rgba(148,163,184,.15);
  background: rgba(255,255,255,.035);
}
.section-actions {
  display: flex;
  justify-content: flex-start;
  margin-top: 1.5rem;
}
.article-main {
  position: relative;
  z-index: 1;
  padding: 3rem 0 5rem;
}
.crumbs {
  display: flex;
  gap: .55rem;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: .9rem;
  margin-bottom: 1.25rem;
}
.article-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 1.5rem;
  align-items: start;
}
.article-hero,
.article-sidebar,
.article-prose,
.rss-card {
  padding: 1.5rem;
}
.article-hero p,
.article-sidebar p,
.article-prose p,
.article-prose li,
.rss-card p {
  color: var(--muted);
}
.article-prose h2 {
  margin: 2rem 0 .85rem;
  font-size: clamp(1.5rem, 2.5vw, 2rem);
}
.article-prose ul,
.article-prose ol {
  padding-left: 1.2rem;
}
.article-prose blockquote {
  margin: 1.5rem 0;
  padding: 1rem 1.2rem;
  border-left: 3px solid rgba(89,168,255,.55);
  background: rgba(255,255,255,.03);
  border-radius: 0 16px 16px 0;
}
.article-sidebar {
  display: grid;
  gap: 1rem;
  position: sticky;
  top: 6rem;
}
.sidebar-list {
  display: grid;
  gap: .8rem;
}
.sidebar-list a {
  color: #dbe8fb;
}
.sidebar-list a:hover { color: white; }
.eyebrow-link {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .86rem;
  color: #bdd6fb;
}
.hero-mini-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: .8rem;
  margin-top: 1.2rem;
}
.mini-card {
  padding: .9rem 1rem;
  border-radius: 16px;
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.05);
}
.mini-card strong {
  display: block;
  font-size: 1.15rem;
}
.mini-card span {
  color: var(--muted);
  font-size: .82rem;
}
.site-footer { padding: 2rem 0 3rem; border-top: 1px solid rgba(255,255,255,.06); position: relative; z-index: 1; }
.footer-shell { display: flex; justify-content: space-between; gap: 1.5rem; align-items: center; }
.footer-links { display: flex; gap: 1rem; flex-wrap: wrap; color: var(--muted); }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .55s ease, transform .55s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
@media (max-width: 980px) {
  .nav-links { display: none; }
  .hero-grid, .architecture-grid, .cols-3, .cols-2, .timeline, .article-shell { grid-template-columns: 1fr; }
  .footer-shell, .comparison-header { flex-direction: column; align-items: flex-start; }
  .article-sidebar { position: static; }
}
@media (max-width: 640px) {
  .hero { padding-top: 4.5rem; }
  .btn { width: 100%; }
  .hero-actions { flex-direction: column; }
  .metric-grid { grid-template-columns: 1fr 1fr; }
  .hero-mini-grid { grid-template-columns: 1fr; }
}