/* Shared marketing shell. Physical versioning bypasses CDN query-string caching. */
:root {
  --shell-accent: var(--accent);
  --shell-grid: rgba(148, 163, 184, 0.065);
}

:root[data-theme="light"] {
  --shell-grid: rgba(15, 23, 42, 0.055);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --shell-grid: rgba(15, 23, 42, 0.055);
  }
}

body {
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--shell-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--shell-grid) 1px, transparent 1px);
  background-size: 40px 40px;
  background-attachment: fixed;
}

.skip-link {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  width: 1px;
  height: 1px;
  overflow: hidden;
  padding: 0.7rem 1rem;
  color: var(--bg);
  background: var(--text-primary);
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip-link:focus-visible {
  top: 0.75rem;
  left: 0.75rem;
  width: auto;
  height: auto;
  overflow: visible;
  clip-path: none;
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.nav-wrap {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100%, 1120px);
  min-height: 69px;
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
}

.nav .brand {
  flex: 0 0 auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  min-width: 0;
}

.nav-menu {
  position: relative;
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
}

.nav-menu-link,
.nav-links > a:not(.btn),
.nav-signin {
  white-space: nowrap;
}

.nav-submenu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  color: var(--text-secondary);
  background: transparent;
  border: 0;
  cursor: pointer;
}

.nav-submenu-toggle span {
  display: block;
  transition: transform 0.15s ease;
}

.nav-submenu-toggle[aria-expanded="true"] span {
  transform: rotate(180deg);
}

.nav-submenu,
.nav-submenu[hidden] {
  display: none;
}

.nav-submenu {
  position: absolute;
  top: calc(100% + 0.65rem);
  left: -0.75rem;
  z-index: 120;
  min-width: 240px;
  padding: 0.55rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-glow);
}

.nav-submenu-end {
  right: -0.75rem;
  left: auto;
}

.nav-submenu-toggle[aria-expanded="true"] + .nav-submenu:not([hidden]) {
  display: block;
}

.nav-submenu a:not(.btn):not(.nav-signin) {
  display: block;
  padding: 0.65rem 0.75rem;
  border-radius: calc(var(--radius-sm) - 2px);
  font-size: 0.86rem;
  white-space: nowrap;
}

.nav-submenu a:hover,
.nav-submenu a:focus-visible {
  background: var(--surface-2);
}

.nav-toggle {
  display: none;
}

.detail-main {
  padding-top: 0;
  background: color-mix(in srgb, var(--bg) 96%, transparent);
}

.detail-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background:
    linear-gradient(115deg, color-mix(in srgb, var(--bg) 97%, var(--shell-accent)), var(--bg));
}

.detail-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(color-mix(in srgb, var(--shell-accent) 8%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--shell-accent) 8%, transparent) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(90deg, transparent 28%, black 100%);
}

.detail-kicker,
.detail-example-label {
  color: var(--shell-accent);
  letter-spacing: 0;
}

.detail-hero h1,
.legal-page h1 {
  font-family: "Aptos Display", "Segoe UI Variable Display", sans-serif;
  font-weight: 760;
  letter-spacing: 0;
  text-wrap: balance;
}

.detail-hero h1::after,
.legal-page h1::after {
  content: "";
  display: block;
  width: 72px;
  height: 3px;
  margin-top: 1rem;
  background: var(--shell-accent);
}

.detail-note {
  border-left-color: var(--shell-accent);
}

.detail-card,
.detail-example,
.status-card,
.roadmap-card {
  box-shadow: 0 14px 32px color-mix(in srgb, var(--bg) 72%, transparent);
}

.detail-hero-inner,
.detail-content,
.detail-related,
.detail-faq {
  width: min(100% - 2rem, 1080px);
  margin-inline: auto;
}

.detail-related-links,
.detail-hub-links,
.content-hub-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.content-hub-grid {
  overflow: visible;
  background: transparent;
  border: 0;
}

.detail-related-links > a,
.detail-hub-links > a,
.content-hub-link {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.75rem;
  min-height: 52px;
  padding: 0.85rem 1rem;
  color: var(--text-primary);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-weight: 650;
  line-height: 1.35;
  text-decoration: none;
  overflow-wrap: anywhere;
}

.content-hub-link strong,
.content-hub-link span {
  grid-column: 1;
}

.content-hub-link span {
  margin-top: 0.35rem;
  font-weight: 400;
}

.detail-related-links > a::after,
.detail-hub-links > a::after,
.content-hub-link::after {
  content: "\2192";
  grid-column: 2;
  grid-row: 1 / span 2;
  color: var(--text-muted);
  font-size: 1.1rem;
  line-height: 1;
}

.detail-related-links > a:hover,
.detail-related-links > a:focus-visible,
.detail-hub-links > a:hover,
.detail-hub-links > a:focus-visible,
.content-hub-link:hover,
.content-hub-link:focus-visible {
  color: var(--accent);
  background: var(--surface-2);
  border-color: var(--accent);
}

.detail-related-links > a:hover::after,
.detail-related-links > a:focus-visible::after,
.detail-hub-links > a:hover::after,
.detail-hub-links > a:focus-visible::after,
.content-hub-link:hover::after,
.content-hub-link:focus-visible::after {
  color: currentColor;
}

.detail-related-links > a:focus-visible,
.detail-hub-links > a:focus-visible,
.content-hub-link:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.footer {
  padding: 4rem 0 1.5rem;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(220px, 1.1fr) minmax(0, 2fr);
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--border);
}

@media (min-width: 761px) and (max-width: 900px) {
  .detail-related-links,
  .detail-hub-links,
  .content-hub-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.footer-brand p {
  margin-top: 0.75rem;
  color: var(--text-secondary);
  font-size: 0.88rem;
}

.footer-socials {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-top: 1.25rem;
}

.footer-social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--text-secondary);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.footer-social-link svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
}

.footer-social-link path {
  fill: currentColor;
  stroke: none;
}

.footer-social-link:hover {
  color: var(--text-primary);
  background: var(--surface-2);
  border-color: var(--accent);
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  min-width: 0;
}

.footer-col h3 {
  margin: 0 0 0.25rem;
  color: var(--text-muted);
  font-size: 0.82rem;
  text-transform: uppercase;
}

.footer-col a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  overflow-wrap: anywhere;
}

.footer-col a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  padding-top: 1.5rem;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.nav a:focus-visible,
.nav button:focus-visible,
.footer a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

@media (max-width: 1100px) {
  .nav-toggle {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    width: 44px;
    height: 44px;
    padding: 0;
    background: transparent;
    border: 0;
    cursor: pointer;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
    max-height: calc(100vh - 69px);
    padding: 1rem 1.5rem 1.25rem;
    overflow-y: auto;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 16px 32px rgba(15, 23, 42, 0.12);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links > a,
  .nav-links > .btn,
  .nav-signin {
    min-height: 44px;
  }

  .nav-links > a,
  .nav-signin {
    display: flex;
    align-items: center;
  }

  .nav-menu {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 44px;
    width: 100%;
  }

  .nav-submenu-toggle {
    width: 44px;
    height: 44px;
  }

  .nav-submenu {
    position: static;
    grid-column: 1 / -1;
    width: 100%;
    min-width: 0;
    margin-top: 0.35rem;
    box-shadow: none;
  }

  .nav-submenu a:not(.btn):not(.nav-signin) {
    min-height: 44px;
    white-space: normal;
  }
}

@media (max-width: 760px) {
  body {
    background-size: 28px 28px;
    background-attachment: scroll;
  }

  .detail-related-links,
  .detail-hub-links,
  .content-hub-grid {
    grid-template-columns: 1fr;
  }

  .footer {
    padding-top: 3rem;
  }

  .footer-inner,
  .footer-cols {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    gap: 2.25rem;
  }

  .footer-bottom {
    flex-direction: column;
  }
}