:root {
  --bg: #0e1621;
  --bg-raise: #17212b;
  --bg-soft: #1e2c3a;
  --line: rgba(170, 204, 228, 0.16);
  --text: #f4f8fb;
  --muted: #8ea4b8;
  --gold: #2aabee;
  --gold-dim: #1a8fc4;
  --rose: #6ab3f3;
  --serif: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --sans: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --wrap: 1120px;
  --measure: 68ch;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(1200px 500px at 90% -10%, rgba(42, 171, 238, 0.18), transparent 55%),
    radial-gradient(900px 420px at -10% 0%, rgba(106, 179, 243, 0.1), transparent 50%),
    var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
}
img { max-width: 100%; }
a { color: var(--gold); text-underline-offset: 0.18em; }
a:hover { color: white; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }
.skip {
  position: absolute;
  left: 12px;
  top: -40px;
  background: var(--gold);
  color: #fff;
  padding: 8px 12px;
  z-index: 20;
}
.skip:focus { top: 12px; }

.wrap { width: min(var(--wrap), calc(100% - 32px)); margin-inline: auto; }
.top {
  position: sticky;
  top: 0;
  z-index: 5;
  backdrop-filter: blur(16px);
  background: rgba(14, 22, 33, 0.92);
  border-bottom: 1px solid var(--line);
}
.top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-family: var(--serif);
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}
.mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #2aabee;
  flex: none;
}
.mark svg { display: block; }
.nav { display: flex; gap: 18px; align-items: center; }
.nav a { color: var(--text); text-decoration: none; font-size: 0.95rem; }
.nav a[aria-current="page"] { color: var(--gold); }
.badge {
  border: 1px solid var(--rose);
  color: var(--rose);
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}
.nav-btn {
  display: none;
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
  padding: 8px 12px;
}

.hero { padding: 64px 0 28px; }
.eyebrow {
  color: var(--gold);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.78rem;
  margin: 0 0 12px;
}
h1, h2, h3 { font-family: var(--sans); font-weight: 600; letter-spacing: -0.03em; line-height: 1.15; }
h1 { font-size: clamp(2.4rem, 5vw, 4.6rem); margin: 0 0 16px; max-width: 16ch; }
.lede { max-width: 62ch; color: var(--muted); font-size: 1.12rem; margin: 0; }
.hero-actions { display: flex; gap: 12px; margin-top: 24px; flex-wrap: wrap; }
.btn {
  display: inline-block;
  text-decoration: none;
  padding: 12px 16px;
  border: 1px solid var(--gold-dim);
  color: #fff;
  background: var(--gold);
}
.btn.ghost { background: transparent; color: var(--text); }

.section { padding: 28px 0 10px; }
.section h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); margin: 0 0 8px; }
.section-head { display: flex; justify-content: space-between; gap: 12px; align-items: end; margin-bottom: 18px; }
.muted { color: var(--muted); }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 100%;
  padding: 16px;
  background: rgba(27, 22, 19, 0.88);
  border: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
}
.card:hover { border-color: var(--gold-dim); }
.card h3 { margin: 0; font-size: 1.35rem; color: var(--text); }
.card-cover { width: calc(100% + 32px); height: 148px; object-fit: cover; margin: -16px -16px 8px; border-bottom: 1px solid var(--line); }
.cover { width: 100%; aspect-ratio: 1200 / 630; object-fit: cover; border: 1px solid var(--line); margin: 0 0 1.1rem; }
.kicker { color: var(--rose); font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; }
.meta { color: var(--muted); font-size: 0.88rem; }

.groups { display: grid; gap: 22px; }
.group h3 { margin: 0 0 10px; font-size: 1.4rem; }
.alt-list { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 18px; margin: 0; padding: 0; list-style: none; }
.alt-list a { color: var(--text); }

.search {
  width: min(420px, 100%);
  background: var(--bg-raise);
  color: var(--text);
  border: 1px solid var(--line);
  padding: 12px 14px;
  font: inherit;
  margin: 8px 0 18px;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 36px;
  padding: 36px 0 20px;
}
.prose { max-width: var(--measure); }
.prose h1 { max-width: none; font-size: clamp(2rem, 4vw, 3.3rem); }
.prose h2 { font-size: 1.7rem; margin: 1.6em 0 0.4em; }
.prose p { margin: 0 0 1em; }
.prose ul, .prose ol { margin: 0 0 1em; padding-left: 1.2em; }
.prose li { margin: 0.25em 0; }
.crumbs { color: var(--muted); font-size: 0.92rem; margin: 0 0 14px; }
.crumbs a { color: var(--muted); }
table { width: 100%; border-collapse: collapse; margin: 0 0 1em; font-size: 0.95rem; }
th, td { border-bottom: 1px solid var(--line); text-align: left; padding: 8px 6px; vertical-align: top; }
.side {
  position: sticky;
  top: 92px;
  align-self: start;
  border-left: 1px solid var(--line);
  padding-left: 16px;
}
.side ol { margin: 0; padding-left: 1.1em; }
.side a { color: var(--text); text-decoration: none; }
.faq details {
  border-top: 1px solid var(--line);
  padding: 10px 0;
}
.faq summary { cursor: pointer; font-family: var(--serif); font-size: 1.15rem; }
.related { display: grid; gap: 8px; margin: 8px 0 0; padding: 0; list-style: none; }
.related a {
  display: block;
  padding: 10px 12px;
  border: 1px solid var(--line);
  text-decoration: none;
  color: var(--text);
}

.foot {
  margin-top: 48px;
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
  color: var(--muted);
}
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 18px; }
.foot a { color: var(--gold); }
.foot h2 { font-size: 1rem; color: var(--text); font-family: var(--sans); letter-spacing: 0.08em; text-transform: uppercase; }
.foot ul { margin: 0; padding: 0; list-style: none; }

.age {
  position: fixed;
  inset: 0;
  z-index: 30;
  background: rgba(10, 8, 7, 0.92);
  display: grid;
  place-items: center;
  padding: 20px;
}
.age-card {
  width: min(460px, 100%);
  background: var(--bg-raise);
  border: 1px solid var(--gold-dim);
  padding: 24px;
}
.age-card h2 { margin-top: 0; }
.age-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.age button, .age .leave {
  font: inherit;
  padding: 10px 14px;
  cursor: pointer;
}
.age button { background: var(--gold); color: #fff; border: 0; }
.age .leave { color: var(--text); }

.empty { display: none; }

@media (max-width: 860px) {
  .grid, .alt-list, .foot-grid, .layout { grid-template-columns: 1fr; }
  .side { position: static; border-left: 0; padding-left: 0; }
  .nav { display: none; }
  body.nav-open .nav {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: absolute;
    left: 0; right: 0; top: 72px;
    background: #17212b;
    border-bottom: 1px solid var(--line);
    padding: 12px 16px 16px;
  }
  .nav-btn { display: inline-block; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}