:root {
  --bg: #081024;
  --bg-soft: #101d3f;
  --panel: #111a33;
  --text: #e9ecf8;
  --muted: #b6bfde;
  --primary: #62d6ff;
  --accent: #bc7dff;
  --success: #5ee8a0;
  --border: #2e3c73;
  --shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-padding-top: 0;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: Inter, "Segoe UI", Roboto, Arial, sans-serif;
  background: radial-gradient(circle at 20% 0%, #1e2f66 0%, var(--bg) 40%);
  color: var(--text);
  line-height: 1.6;
}

main {
  flex: 1;
  width: 100%;
}

.shell {
  width: min(96vw, 1500px);
  margin: 0 auto;
  padding: 1.25rem;
}

.skip-link {
  position: absolute;
  left: -999px;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
  z-index: 999;
  background: #fff;
  color: #000;
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(8, 16, 36, 0.85);
  border-bottom: 1px solid var(--border);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.nav-list a {
  display: inline-block;
  text-decoration: none;
  color: var(--muted);
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  transition: 0.2s ease;
}

.nav-list a:hover,
.nav-list a.active {
  color: var(--text);
  border-color: var(--border);
  background: rgba(98, 214, 255, 0.08);
}

.hero {
  margin-top: 1rem;
  display: grid;
  gap: 1rem;
  grid-template-columns: 1.4fr 1fr;
}

.eyebrow {
  color: var(--primary);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.85rem;
}

.hero h1 {
  margin: 0.3rem 0 0.75rem;
  font-size: clamp(1.8rem, 3vw, 3rem);
  line-height: 1.2;
}

.lede {
  color: var(--muted);
  max-width: 72ch;
}

.cta-row {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.cta {
  text-decoration: none;
  border-radius: 12px;
  padding: 0.8rem 1rem;
  font-weight: 700;
  border: 1px solid var(--border);
  transition: transform 0.15s ease;
}

.cta:hover {
  transform: translateY(-1px);
}

.cta-primary {
  background: linear-gradient(120deg, #36d1ff, #8d7cff);
  color: #061029;
}

.cta-secondary {
  background: linear-gradient(120deg, #57f2aa, #47d0ff);
  color: #061029;
}

.hero-card,
.hub-card,
.related-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(140deg, rgba(17, 26, 51, 0.95), rgba(17, 26, 51, 0.8));
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 1rem;
}

.home-section {
  margin-top: 1rem;
}

.home-section h2 {
  margin: 1.4rem 0 0.9rem;
  padding: 0.5rem 0.8rem;
  border: 1px solid rgba(124, 170, 255, 0.35);
  border-radius: 12px;
  background: linear-gradient(120deg, rgba(45, 112, 191, 0.22), rgba(82, 46, 155, 0.26));
  box-shadow: 0 10px 24px rgba(10, 18, 38, 0.38);
  line-height: 1.2;
  letter-spacing: 0.01em;
  font-size: clamp(1.2rem, 2vw, 1.65rem);
  color: #eaf4ff;
  text-wrap: balance;
  position: relative;
}

.home-section-heading {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.home-section-icon {
  width: 2rem;
  height: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
  flex: 0 0 auto;
}


.hub-grid,
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 0.9rem;
}

.hub-card,
.related-card {
  display: block;
  color: var(--text);
  text-decoration: none;
  padding: 1rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease,
    background 0.25s ease;
}

.hub-card:hover,
.related-card:hover {
  border-color: var(--primary);
}

.related-card {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  background: linear-gradient(145deg, rgba(60, 108, 205, 0.22), rgba(53, 24, 91, 0.35));
}

.related-card:nth-child(2n) {
  background: linear-gradient(145deg, rgba(29, 130, 154, 0.24), rgba(41, 47, 120, 0.34));
}

.related-card:nth-child(3n) {
  background: linear-gradient(145deg, rgba(88, 58, 179, 0.28), rgba(19, 90, 150, 0.3));
}

.related-card:hover,
.related-card:focus-visible {
  transform: translateY(-2px);
  border-color: #8be9ff;
  box-shadow: 0 16px 32px rgba(18, 28, 58, 0.55), 0 0 0 1px rgba(139, 233, 255, 0.3);
  background: linear-gradient(145deg, rgba(80, 146, 255, 0.28), rgba(128, 76, 212, 0.34));
}

.related-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(circle at 0% 0%, rgba(255, 255, 255, 0.14), transparent 45%);
  opacity: 0.65;
  pointer-events: none;
}

.related-card-icon,
.related-card-body,
.related-card-arrow {
  position: relative;
  z-index: 1;
}

.related-card-icon {
  width: 2.05rem;
  height: 2.05rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.09);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.related-card-body {
  flex: 1;
  min-width: 0;
}

.related-card-title {
  display: block;
  font-weight: 700;
  color: #eaf3ff;
  line-height: 1.35;
}

.related-card-tag {
  display: inline-block;
  margin-top: 0.3rem;
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #d5e2ff;
  border: 1px solid rgba(202, 217, 255, 0.33);
  border-radius: 999px;
  padding: 0.12rem 0.45rem;
  background: rgba(8, 16, 36, 0.28);
}

.related-card-arrow {
  color: #d9ecff;
  font-weight: 700;
  transition: transform 0.2s ease;
}

.related-card:hover .related-card-arrow,
.related-card:focus-visible .related-card-arrow {
  transform: translateX(3px);
}

.related-card.related-signaling {
  background: linear-gradient(145deg, rgba(42, 122, 222, 0.29), rgba(42, 56, 126, 0.4));
}

.related-card.related-media {
  background: linear-gradient(145deg, rgba(14, 131, 142, 0.29), rgba(64, 41, 124, 0.4));
}

.related-card.related-default {
  background: linear-gradient(145deg, rgba(74, 90, 170, 0.28), rgba(66, 35, 104, 0.37));
}

.breadcrumbs {
  margin-top: 0.75rem;
  margin-bottom: 0.5rem;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
}

.breadcrumbs a {
  color: var(--primary);
  text-decoration: none;
}

.prose {
  background: rgba(8, 16, 36, 0.65);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem;
  line-height: 1.8;
}

.prose h1,
.prose h2,
.prose h3 {
  color: #f7f9ff;
}

.prose h1 {
  margin-top: 0.2rem;
  margin-bottom: 1rem;
  line-height: 1.2;
  letter-spacing: 0.01em;
  font-size: clamp(1.9rem, 3.2vw, 2.8rem);
  text-wrap: balance;
}

.prose h1 > a.header-anchor {
  color: #d9fbff;
  text-decoration: none;
  text-shadow: 0 0 14px rgba(132, 240, 255, 0.16);
}

.prose h1 > a.header-anchor:hover,
.prose h1 > a.header-anchor:focus-visible {
  color: #efffff;
}

.prose h2 {
  margin-top: 1.6rem;
  margin-bottom: 0.85rem;
  padding: 0.55rem 0.75rem 0.55rem 0.85rem;
  font-size: clamp(1.35rem, 2.1vw, 1.9rem);
  letter-spacing: 0.01em;
  border-left: 3px solid rgba(141, 133, 255, 0.9);
  border-radius: 10px;
  background: linear-gradient(90deg, rgba(98, 214, 255, 0.08), rgba(156, 129, 255, 0.07) 62%, transparent);
  color: #c6d7ff;
  text-wrap: balance;
}

.prose h3 {
  margin-top: 1.2rem;
  margin-bottom: 0.55rem;
  font-size: clamp(1.12rem, 1.7vw, 1.45rem);
  color: #d9e3ff;
}

.prose h4 {
  margin-top: 1rem;
  margin-bottom: 0.5rem;
  color: #c9d9ff;
  font-size: 1.04rem;
}

.prose h1,
.prose h2,
.prose h3,
.prose h4 {
  scroll-margin-top: 5.1rem;
}

.prose a {
  color: var(--primary);
  text-decoration: none;
  background-image: linear-gradient(120deg, rgba(98, 214, 255, 0.75), rgba(188, 125, 255, 0.7));
  background-repeat: no-repeat;
  background-size: 100% 1px;
  background-position: 0 100%;
  transition: color 0.2s ease, background-size 0.2s ease, text-shadow 0.2s ease,
    background-position 0.2s ease;
}

.prose a:hover,
.prose a:focus-visible {
  color: #c7f1ff;
  background-size: 100% 100%;
  background-position: 0 100%;
  text-shadow: 0 0 14px rgba(98, 214, 255, 0.45);
}

.prose p,
.prose li {
  color: #d8e0fb;
}

.prose p {
  margin: 0.85rem 0 1rem;
}

.prose ul,
.prose ol {
  margin: 0.65rem 0 1rem;
  padding-left: 1.3rem;
}

.prose ul li::marker {
  color: #7adfff;
}

.prose ol li::marker {
  color: #bba4ff;
  font-weight: 700;
}

.prose li {
  margin: 0.45rem 0;
  padding-left: 0.1rem;
}

.prose li > ul,
.prose li > ol {
  margin-top: 0.35rem;
  margin-bottom: 0.35rem;
}

.prose pre {
  overflow: auto;
  border-radius: 10px;
  border: 1px solid var(--border);
  position: relative;
  margin: 1rem 0;
  background: #0b1430;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03);
  padding: 2.7rem 1rem 1rem;
}

.prose pre[class*="language-"] {
  padding: 2.7rem 1rem 1rem;
}

.prose pre code {
  display: block;
  font-family: "JetBrains Mono", "Fira Code", Consolas, Monaco, monospace;
  font-size: 0.9rem;
  line-height: 1.6;
  color: #eaf0ff;
}

.prose code:not(pre code) {
  font-family: "JetBrains Mono", "Fira Code", Consolas, Monaco, monospace;
  font-size: 0.9em;
  color: #dff7ff;
  background: rgba(98, 214, 255, 0.12);
  border: 1px solid rgba(98, 214, 255, 0.25);
  border-radius: 6px;
  padding: 0.1rem 0.35rem;
}

.copy-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  border: 1px solid var(--border);
  background: #1d2b56;
  color: #fff;
  border-radius: 8px;
  padding: 0.25rem 0.5rem;
  cursor: pointer;
  font-size: 0.8rem;
}

.code-language-badge {
  position: absolute;
  top: 0.5rem;
  left: 0.6rem;
  border: 1px solid var(--border);
  background: #152552;
  color: #9adfff;
  border-radius: 999px;
  padding: 0.15rem 0.55rem;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  font-weight: 700;
}

.copy-btn:hover {
  background: #2b3d77;
}

/* Prism token coloring used by @11ty/eleventy-plugin-syntaxhighlight */
.token.comment,
.token.prolog,
.token.doctype,
.token.cdata {
  color: #7f8fb8;
}

.token.punctuation {
  color: #b9c8ee;
}

.token.property,
.token.tag,
.token.boolean,
.token.number,
.token.constant,
.token.symbol,
.token.deleted {
  color: #f594c9;
}

.token.selector,
.token.attr-name,
.token.string,
.token.char,
.token.builtin,
.token.inserted {
  color: #79efc0;
}

.token.operator,
.token.entity,
.token.url,
.language-css .token.string,
.style .token.string {
  color: #8ad8ff;
}

.token.atrule,
.token.attr-value,
.token.keyword {
  color: #cba2ff;
}

.token.function,
.token.class-name {
  color: #ffd48f;
}

.token.regex,
.token.important,
.token.variable {
  color: #ffcb6b;
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
  margin: 1rem 0 1.2rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(12, 20, 42, 0.88);
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  display: table;
  min-width: 760px;
}

.prose th,
.prose td {
  border: 1px solid rgba(86, 107, 168, 0.45);
  padding: 0.62rem 0.68rem;
  text-align: left;
  vertical-align: top;
}

.prose th {
  background: linear-gradient(120deg, rgba(74, 129, 229, 0.35), rgba(72, 43, 140, 0.32));
  color: #eaf2ff;
  font-weight: 700;
}

.prose tr:nth-child(even) td {
  background: rgba(99, 143, 228, 0.06);
}

.prose tr:hover td {
  background: rgba(130, 176, 255, 0.1);
}

.prose ul.contains-task-list input[type="checkbox"] {
  accent-color: var(--success);
  cursor: pointer;
}

.prose .faq-item {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(17, 26, 51, 0.75);
  margin: 0.8rem 0;
  overflow: hidden;
}

.prose .faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 0.8rem 0.9rem;
  font-weight: 700;
  color: #dff6ff;
  background: rgba(98, 214, 255, 0.08);
}

.prose .faq-item summary::-webkit-details-marker {
  display: none;
}

.prose .faq-item summary::after {
  content: "+";
  float: right;
  color: var(--primary);
}

.prose .faq-item[open] summary::after {
  content: "-";
}

.prose .faq-answer {
  padding: 0.8rem 0.9rem 0.95rem;
}

.prose .faq-answer-label-inline {
  color: var(--success);
  font-weight: 700;
}

.site-footer {
  border-top: 1px solid var(--border);
  background: rgba(8, 16, 36, 0.9);
}

.footer-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-shell a {
  color: var(--primary);
  margin-right: 0.8rem;
}

@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .brand span {
    display: none;
  }
}