:root {
  --ink: #08141d;
  --surface: #10232e;
  --surface-raised: #173542;
  --text: #e9f5f4;
  --muted: #9db6b8;
  --teal: #58dfce;
  --amber: #ffbd5a;
  --line: rgb(164 216 216 / 18%);
  --danger: #ff8f86;
  --font-display: Georgia, "Times New Roman", serif;
  --font-body: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --container: 1120px;
  --radius: 0.9rem;
  --shadow: 0 1.5rem 3.5rem rgb(0 0 0 / 20%);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  min-width: 320px;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 75% -15%, rgb(88 223 206 / 12%), transparent 30rem),
    radial-gradient(circle at 0 30%, rgb(23 53 66 / 72%), transparent 35rem),
    var(--ink);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
}

body::before {
  position: fixed;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  content: "";
  opacity: 0.2;
  background-image: linear-gradient(rgb(255 255 255 / 2%) 1px, transparent 1px), linear-gradient(90deg, rgb(255 255 255 / 2%) 1px, transparent 1px);
  background-size: 2rem 2rem;
  mask-image: linear-gradient(to bottom, black, transparent 72%);
}

a { color: var(--teal); text-underline-offset: 0.17em; }
a:hover { color: #a4fff2; }
button, input { font: inherit; }
button { cursor: pointer; }

:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 3px;
}

.container { width: min(var(--container), calc(100% - 2.5rem)); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

.skip-link {
  position: fixed;
  z-index: 20;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.6rem 0.9rem;
  color: var(--ink);
  background: var(--teal);
  border-radius: 0.4rem;
  transform: translateY(-200%);
}
.skip-link:focus { transform: translateY(0); }

.site-header { position: sticky; z-index: 10; top: 0; border-bottom: 1px solid var(--line); background: rgb(8 20 29 / 88%); backdrop-filter: blur(16px); }
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 4.8rem; gap: 1.5rem; }
.site-logo { display: inline-flex; align-items: center; gap: 0.45rem; color: var(--text); font-family: var(--font-display); font-size: 1.2rem; font-weight: 700; letter-spacing: -0.025em; text-decoration: none; white-space: nowrap; }
.site-logo:hover { color: var(--text); }
.site-logo em { color: var(--teal); font-style: italic; }
.logo-mark { color: var(--amber); font-family: var(--font-body); font-size: 0.8em; }

.site-nav { display: flex; align-items: center; gap: clamp(0.6rem, 1.6vw, 1.35rem); }
.site-nav a { color: var(--muted); font-size: 0.88rem; font-weight: 700; text-decoration: none; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--teal); }
.menu-button { display: none; padding: 0.45rem 0.7rem; color: var(--text); background: transparent; border: 1px solid var(--line); border-radius: 0.45rem; }

#app { min-height: calc(100vh - 13rem); }
.loading-state { padding-block: 7rem; }

h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { color: var(--text); font-family: var(--font-display); line-height: 1.12; letter-spacing: -0.032em; }
h1 { max-width: 17ch; font-size: clamp(2.65rem, 7vw, 5.45rem); }
h2 { font-size: clamp(1.8rem, 3vw, 2.75rem); }
h3 { font-size: 1.3rem; }
.eyebrow { margin-bottom: 0.65rem; color: var(--teal); font-size: 0.76rem; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; }
.lede { max-width: 64ch; color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.25rem); }
.section { padding-block: clamp(3.5rem, 8vw, 7rem); }
.section + .section { border-top: 1px solid var(--line); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 1.25rem; margin-bottom: 2rem; }
.section-heading > p { max-width: 48ch; margin-bottom: 0; color: var(--muted); }

.hero { padding-block: clamp(4rem, 10vw, 8rem) clamp(3.5rem, 7vw, 6rem); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(17rem, 0.75fr); gap: clamp(2rem, 7vw, 7rem); align-items: end; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 1.8rem; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 2.8rem; padding: 0.6rem 1rem; border: 1px solid transparent; border-radius: 0.5rem; font-size: 0.9rem; font-weight: 800; text-decoration: none; }
.button-primary { color: var(--ink); background: var(--teal); }
.button-primary:hover { color: var(--ink); background: #a4fff2; }
.button-secondary { color: var(--text); border-color: var(--line); background: rgb(16 35 46 / 75%); }
.button-secondary:hover { color: var(--text); border-color: var(--teal); }

.search-panel, .panel, .card, .status-card, .article-card { border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(135deg, rgb(23 53 66 / 94%), rgb(16 35 46 / 94%)); box-shadow: var(--shadow); }
.search-panel { padding: 1.3rem; }
.search-panel label { display: block; margin-bottom: 0.5rem; color: var(--text); font-weight: 800; }
.search-panel input { width: 100%; min-height: 3rem; padding: 0.7rem 0.85rem; color: var(--text); background: rgb(8 20 29 / 74%); border: 1px solid var(--line); border-radius: 0.45rem; }
.search-panel input::placeholder { color: var(--muted); }
.search-help { margin: 0.65rem 0 0; color: var(--muted); font-size: 0.85rem; }
.search-empty { margin-top: 0.85rem; padding-top: 0.85rem; color: var(--muted); border-top: 1px solid var(--line); font-size: 0.85rem; }
.search-empty p { margin-bottom: 0.4rem; }
.search-empty ul { padding-left: 1.2rem; margin-block: 0; }
.search-empty li + li { margin-top: 0.3rem; }

.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.card-grid--four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card { display: flex; flex-direction: column; min-height: 100%; padding: 1.25rem; color: var(--text); text-decoration: none; transition: transform 160ms ease, border-color 160ms ease, background 160ms ease; }
.card:hover { color: var(--text); border-color: rgb(88 223 206 / 62%); background: var(--surface-raised); transform: translateY(-0.18rem); }
.card p { margin-bottom: 0; color: var(--muted); font-size: 0.92rem; }
.card .card-kicker { margin-bottom: 0.65rem; color: var(--teal); font-size: 0.75rem; font-weight: 800; letter-spacing: 0.09em; text-transform: uppercase; }
.card h3 { margin-bottom: 0.55rem; }
.topic-card[hidden], [data-category-section][hidden] { display: none; }

.steps { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 0.75rem; padding: 0; margin: 0; list-style: none; counter-reset: step; }
.steps li { min-height: 8.5rem; padding: 1rem; border-top: 2px solid var(--teal); background: rgb(16 35 46 / 66%); }
.steps li::before { display: block; margin-bottom: 1.1rem; color: var(--muted); font-size: 0.78rem; font-weight: 800; content: "0" counter(step); counter-increment: step; }

.status-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.status-card { padding: 1.4rem; }
.status-card p { color: var(--muted); }
.status-card h3 { margin-bottom: 0.5rem; }

.article { padding-block: clamp(2.5rem, 6vw, 5.5rem); }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-bottom: 1.5rem; color: var(--muted); font-size: 0.88rem; }
.breadcrumbs a { color: var(--muted); }
.article-header { max-width: 50rem; margin-bottom: 2.2rem; }
.article-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 0.7rem 1rem; color: var(--muted); font-size: 0.88rem; }
.badge { display: inline-flex; align-items: center; min-height: 1.7rem; padding-inline: 0.55rem; border-radius: 999px; color: var(--teal); background: rgb(88 223 206 / 12%); font-size: 0.73rem; font-weight: 800; letter-spacing: 0.05em; text-transform: uppercase; }
.badge--warning { color: var(--amber); background: rgb(255 189 90 / 12%); }
.article-layout { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(17rem, 0.55fr); gap: clamp(1.5rem, 5vw, 4rem); align-items: start; }
.article-card, .panel { padding: clamp(1.2rem, 3vw, 2rem); }
.article-card > :last-child, .panel > :last-child { margin-bottom: 0; }
.article-card li + li { margin-top: 0.5rem; }
.source-list { padding-left: 1.2rem; }
.source-list li + li { margin-top: 0.6rem; }

.verification-callout { padding: 1.15rem 1.25rem; border: 1px solid rgb(255 189 90 / 50%); border-left: 4px solid var(--amber); border-radius: 0.55rem; color: #ffe4b9; background: rgb(255 189 90 / 10%); }
.verification-callout h2, .verification-callout h3 { color: var(--amber); font-family: var(--font-body); font-size: 1rem; letter-spacing: 0; }
.verification-callout p:last-child { margin-bottom: 0; }
.article-content { display: grid; gap: 1rem; }
.article-sidebar { display: grid; gap: 1rem; }
.related-list { padding-left: 1.2rem; margin-bottom: 0; }
.related-list li + li { margin-top: 0.6rem; }
.integrity-grid { display: grid; grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); gap: 1rem; align-items: start; }
.faq-list { display: grid; gap: 1rem; }
.faq-list summary { color: var(--text); font-weight: 800; cursor: pointer; }
.faq-list p { margin: 0.9rem 0 0; color: var(--muted); }
.empty-state { padding: clamp(2rem, 6vw, 4.5rem); text-align: center; }

.site-footer { margin-top: 3rem; border-top: 1px solid var(--line); background: rgb(5 13 19 / 55%); }
.footer-inner { display: grid; grid-template-columns: minmax(0, 0.75fr) minmax(12rem, 0.65fr) minmax(20rem, 1.2fr); gap: 2rem; padding-block: 2.4rem; }
.footer-inner p { margin: 0.7rem 0 0; color: var(--muted); font-size: 0.86rem; }
.footer-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.35rem 1rem; align-content: start; }
.footer-nav a { color: var(--muted); font-size: 0.86rem; font-weight: 700; text-decoration: none; }
.footer-nav a:hover { color: var(--teal); }
.disclaimer { max-width: 64ch; justify-self: end; }

@media (max-width: 760px) {
  .container { width: min(100% - 1.5rem, var(--container)); }
  .header-inner { position: relative; min-height: 4.25rem; }
  .menu-button { display: inline-flex; }
  .site-nav { display: none; position: absolute; top: calc(100% + 1px); right: 0.75rem; left: 0.75rem; flex-direction: column; align-items: stretch; gap: 0; padding: 0.45rem; border: 1px solid var(--line); border-radius: 0 0 var(--radius) var(--radius); background: var(--surface); box-shadow: var(--shadow); }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 0.75rem; border-radius: 0.35rem; }
  .site-nav a:hover { background: var(--surface-raised); }
  .hero-grid, .article-layout, .footer-inner, .status-grid, .integrity-grid { grid-template-columns: 1fr; }
  .card-grid, .card-grid--four, .steps { grid-template-columns: 1fr; }
  .steps li { min-height: auto; }
  .steps li::before { margin-bottom: 0.35rem; }
  .section-heading { display: block; }
  .section-heading > p { margin-top: 0.75rem; }
  .disclaimer { justify-self: start; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}