:root {
  --bg: #080b12;
  --surface: #10151f;
  --surface-2: #171e2b;
  --border: rgba(148, 163, 184, .2);
  --text: #f5f7fb;
  --muted: #aeb8c9;
  --accent: #79b0ff;
  --accent-strong: #4c8ff0;
  --success: #5cdaa9;
  --warning: #ffd27a;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(circle at 10% 4%, rgba(48, 112, 232, .14), transparent 30rem),
    radial-gradient(circle at 94% 35%, rgba(70, 211, 160, .055), transparent 25rem);
}
a { color: var(--accent); text-underline-offset: .2em; }
a:hover { color: #a8caff; }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid var(--warning);
  outline-offset: 3px;
}
.skip-link {
  position: fixed;
  left: 1rem;
  top: -5rem;
  z-index: 100;
  padding: .65rem 1rem;
  border-radius: .5rem;
  background: #fff;
  color: #080b12;
}
.skip-link:focus { top: 1rem; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--border);
  background: rgba(8, 11, 18, .9);
  backdrop-filter: blur(18px);
}
.site-header-inner {
  max-width: 1120px;
  min-height: 72px;
  margin: auto;
  padding: .8rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.brand { display: flex; align-items: center; }
.brand img { display: block; width: auto; height: 40px; }
.site-nav { display: flex; align-items: center; justify-content: flex-end; gap: 1.2rem; }
.site-nav a { color: var(--muted); font-size: .9rem; font-weight: 600; text-decoration: none; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--text); }
.site-nav .nav-cta { padding: .48rem .9rem; border-radius: .55rem; background: var(--accent-strong); color: #fff; }
main { display: block; }
.hero {
  max-width: 920px;
  margin: 0 auto;
  padding: clamp(4.5rem, 10vw, 7.5rem) 1.5rem 3.5rem;
}
.eyebrow {
  margin: 0 0 .9rem;
  color: var(--accent);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}
h1, h2, h3 { font-family: 'Outfit', 'DM Sans', sans-serif; letter-spacing: -.025em; }
h1 { max-width: 900px; margin: 0; font-size: clamp(2.6rem, 7vw, 5rem); line-height: 1.02; }
.lede { max-width: 760px; margin: 1.35rem 0 0; color: #ccd4e2; font-size: clamp(1.08rem, 2vw, 1.3rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2rem; }
.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: .68rem 1.15rem;
  border: 1px solid var(--border);
  border-radius: .58rem;
  color: var(--text);
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}
.button.primary { border-color: var(--accent-strong); background: linear-gradient(135deg, #6ea8ff, #3978e8); color: #fff; }
.button.secondary { background: var(--surface); }
.button:hover { color: #fff; transform: translateY(-1px); }
.breadcrumbs { max-width: 920px; margin: 0 auto; padding: 1.1rem 1.5rem 0; color: var(--muted); font-size: .82rem; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: .45rem; margin: 0; padding: 0; list-style: none; }
.breadcrumbs li + li::before { content: "/"; padding-right: .45rem; color: #657086; }
.breadcrumbs a { color: var(--muted); }
.article-layout {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.5rem 6rem;
  display: grid;
  grid-template-columns: minmax(0, 760px) minmax(220px, 280px);
  gap: clamp(2rem, 7vw, 5rem);
  align-items: start;
}
.article { min-width: 0; }
.article section { scroll-margin-top: 6rem; }
.article h2 { margin: 3.5rem 0 .9rem; font-size: clamp(1.7rem, 3.5vw, 2.35rem); line-height: 1.18; }
.article h3 { margin: 2rem 0 .5rem; font-size: 1.2rem; }
.article p, .article li { color: #c6cfdd; }
.article p { margin: 0 0 1.15rem; }
.article ul, .article ol { padding-left: 1.35rem; }
.article li + li { margin-top: .48rem; }
.article strong { color: var(--text); }
.article table { width: 100%; min-width: 680px; border-collapse: collapse; }
.article th, .article td { padding: .85rem .9rem; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
.article th { color: var(--text); background: var(--surface-2); font-size: .85rem; }
.table-wrap { margin: 1.3rem 0 2rem; overflow-x: auto; border: 1px solid var(--border); border-radius: .8rem; }
.table-wrap table { margin: 0; }
.callout, .example, .cta-panel {
  margin: 2rem 0;
  padding: 1.25rem 1.35rem;
  border: 1px solid rgba(121, 176, 255, .3);
  border-radius: .85rem;
  background: rgba(121, 176, 255, .07);
}
.callout p:last-child, .example p:last-child, .cta-panel p:last-child { margin-bottom: 0; }
.example { border-color: var(--border); background: var(--surface); }
.example dl { display: grid; grid-template-columns: max-content 1fr; gap: .35rem 1rem; margin: .8rem 0 0; }
.example dt { color: var(--muted); }
.example dd { margin: 0; color: var(--text); font-weight: 600; }
.lifecycle-legend { display: flex; flex-wrap: wrap; gap: .55rem 1rem; margin: 1.1rem 0 .35rem; }
.lifecycle-legend span { display: inline-flex; align-items: center; gap: .45rem; color: var(--muted); font-size: .82rem; font-weight: 700; }
.lifecycle-legend i { width: 1rem; height: 1rem; border-radius: .25rem; }
.lifecycle-legend .state-key i { border: 1px solid rgba(121, 176, 255, .65); background: rgba(121, 176, 255, .12); }
.lifecycle-legend .action-key i { border: 1px dashed rgba(92, 218, 169, .7); background: rgba(92, 218, 169, .08); }
.lifecycle-intro { margin-bottom: 1rem !important; color: var(--muted) !important; font-size: .88rem; }
.lifecycle-map { display: grid; gap: .5rem; margin: .75rem 0 1.6rem; }
.lifecycle-transition { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr) minmax(0, 1fr); gap: .5rem; align-items: stretch; }
.lifecycle-block { height: 76px; padding: .55rem .7rem; border-radius: .65rem; display: flex; flex-direction: column; align-items: flex-start; justify-content: center; }
.lifecycle-block strong { color: var(--text); font: 700 .92rem 'Outfit', 'DM Sans', sans-serif; line-height: 1.18; }
.lifecycle-kind { display: block; margin-bottom: .16rem; font-size: .6rem; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; }
.lifecycle-state { border: 1px solid rgba(121, 176, 255, .5); background: rgba(121, 176, 255, .09); }
.lifecycle-state .lifecycle-kind { color: var(--accent); }
.lifecycle-action { position: relative; padding-right: 2rem; border: 1px dashed rgba(92, 218, 169, .58); background: rgba(92, 218, 169, .055); }
.lifecycle-action .lifecycle-kind { color: var(--success); }
.lifecycle-arrow { position: absolute; right: .7rem; top: 50%; color: var(--success); font-size: 1rem; transform: translateY(-50%); }
.lifecycle-detail { margin-top: .1rem; color: var(--muted); font-size: .7rem; }
.sidebar { position: sticky; top: 6.2rem; }
.sidebar-card { padding: 1.1rem; border: 1px solid var(--border); border-radius: .8rem; background: rgba(16, 21, 31, .82); }
.sidebar-card + .sidebar-card { margin-top: 1rem; }
.sidebar h2 { margin: 0 0 .65rem; font-size: 1rem; }
.sidebar ul { margin: 0; padding: 0; list-style: none; }
.sidebar li + li { margin-top: .55rem; }
.sidebar a { font-size: .88rem; }
.definition-grid, .resource-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}
.definition-card, .resource-card { padding: 1.2rem; border: 1px solid var(--border); border-radius: .8rem; background: var(--surface); }
.definition-card h3, .resource-card h2, .resource-card h3 { margin: 0 0 .45rem; font-size: 1.1rem; }
.definition-card p, .resource-card p { margin: 0; font-size: .92rem; }
.resource-index { max-width: 1120px; margin: 0 auto; padding: 0 1.5rem 6rem; }
.resource-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.resource-card { display: flex; min-height: 205px; flex-direction: column; }
.resource-card a { margin-top: auto; font-weight: 700; }
.launch-status { max-width: 820px; min-height: calc(100vh - 145px); margin: 0 auto; padding: clamp(4.5rem, 10vw, 7rem) 1.5rem 6rem; }
.launch-status h1 { max-width: 780px; }
.launch-card { margin-top: 2.25rem; padding: clamp(1.4rem, 4vw, 2.2rem); border: 1px solid rgba(121, 176, 255, .3); border-radius: 1rem; background: rgba(16, 21, 31, .9); }
.launch-card h2 { margin: 0 0 .7rem; font-size: clamp(1.45rem, 3vw, 2rem); }
.launch-card p { margin: 0 0 1rem; color: #c6cfdd; }
.existing-user { margin-top: 1.25rem; color: var(--muted); font-size: .83rem; text-align: center; }
.existing-user a { color: var(--muted); }
.checklist { margin-top: 1rem; }
.checklist fieldset { margin: 0; padding: 0; border: 0; }
.checklist legend { margin-bottom: 1rem; font: 700 1.2rem 'Outfit', sans-serif; }
.check-item { display: grid; grid-template-columns: 1.35rem 1fr; gap: .8rem; margin-bottom: .7rem; padding: 1rem; border: 1px solid var(--border); border-radius: .75rem; background: var(--surface); cursor: pointer; }
.check-item:hover { border-color: rgba(121, 176, 255, .45); }
.check-item input { width: 1.2rem; height: 1.2rem; margin-top: .25rem; accent-color: var(--accent-strong); }
.check-item span { color: #d6ddea; }
.check-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin: 1.4rem 0; }
.score-result { min-height: 9.5rem; padding: 1.3rem; border: 1px solid var(--border); border-radius: .85rem; background: var(--surface-2); }
.score-result[hidden] { display: none; }
.score-result h2 { margin: 0 0 .4rem; }
.score-value { color: var(--success); font-size: 1.15rem; font-weight: 700; }
.recommendations[hidden] { display: none; }
.site-footer { border-top: 1px solid var(--border); background: var(--surface); }
.site-footer-inner { max-width: 1120px; margin: auto; padding: 2rem 1.5rem; display: flex; justify-content: space-between; gap: 1.4rem; flex-wrap: wrap; color: var(--muted); font-size: .84rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: .65rem 1.2rem; }
.footer-links a { color: var(--muted); }
.fine-print { color: var(--muted); font-size: .87rem; }
@media (max-width: 860px) {
  .article-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .resource-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .site-header-inner { align-items: flex-start; flex-direction: column; gap: .65rem; }
  .site-nav { width: 100%; justify-content: flex-start; gap: .6rem 1rem; flex-wrap: wrap; }
  .site-nav a { font-size: .82rem; }
  .definition-grid, .resource-grid { grid-template-columns: 1fr; }
  .example dl { grid-template-columns: 1fr; gap: 0; }
  .example dd + dt { margin-top: .5rem; }
  .lifecycle-transition { grid-template-columns: 1fr; gap: .35rem; }
  .lifecycle-block { width: 100%; height: 72px; }
  .lifecycle-action { width: calc(100% - 2rem); height: 68px; margin: 0 auto; padding-right: .7rem; text-align: center; align-items: center; }
  .lifecycle-arrow { right: 50%; top: auto; bottom: -.9rem; padding: 0 .25rem; background: var(--bg); transform: translateX(50%) rotate(90deg); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}