/* Subpage layout — builds on style.css tokens */

body.page {
  background: var(--bg-light);
  color: var(--ink-dark);
}

.page .nav {
  background: rgba(4, 19, 31, 0.92);
  border-bottom-color: var(--line);
}

.page-hero {
  background:
    radial-gradient(ellipse 60% 50% at 80% 20%, rgba(26, 155, 176, 0.25), transparent 55%),
    linear-gradient(160deg, #04131f 0%, #0a2740 55%, #04131f 100%);
  color: var(--ink);
  padding: clamp(6.5rem, 12vh, 8rem) 0 3.5rem;
}

.page-hero__crumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  margin: 0 0 1.25rem;
  color: var(--ink-mute);
  font-size: 0.9rem;
}

.page-hero__crumb a:hover {
  color: var(--accent);
}

.page-hero__crumb span[aria-hidden="true"] {
  opacity: 0.5;
}

.page-hero h1 {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4vw, 2.7rem);
  letter-spacing: -0.03em;
  line-height: 1.2;
  max-width: 16ch;
}

.page-hero__lead {
  margin: 0;
  max-width: 42rem;
  color: var(--ink-mute);
  font-size: 1.05rem;
}

.page-main {
  padding: clamp(2.5rem, 6vh, 4rem) 0 4.5rem;
}

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: start;
}

.page-article > * + * {
  margin-top: 1.1rem;
}

.page-article h2 {
  margin: 2.2rem 0 0.75rem;
  font-family: var(--font-display);
  font-size: 1.45rem;
  letter-spacing: -0.02em;
  color: var(--ink-dark);
}

.page-article h2:first-child {
  margin-top: 0;
}

.page-article p,
.page-article li {
  color: var(--ink-dark-mute);
  font-size: 1.02rem;
  line-height: 1.75;
}

.page-article ul,
.page-article ol {
  margin: 0;
  padding-left: 1.25rem;
  display: grid;
  gap: 0.55rem;
}

.page-article .callout {
  margin-top: 1.5rem;
  padding: 1.15rem 1.25rem;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--line-dark);
  border-left: 3px solid var(--accent-2);
  box-shadow: 0 10px 28px rgba(18, 36, 51, 0.05);
}

.page-article .callout strong {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--ink-dark);
}

.page-article .refs {
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line-dark);
  font-size: 0.92rem;
}

.page-article .refs a {
  color: var(--accent-2);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-aside {
  position: sticky;
  top: 96px;
  display: grid;
  gap: 1rem;
}

.page-aside__box {
  background: #fff;
  border: 1px solid var(--line-dark);
  border-radius: 14px;
  padding: 1.15rem 1.2rem;
  box-shadow: 0 10px 28px rgba(18, 36, 51, 0.05);
}

.page-aside__box h3 {
  margin: 0 0 0.85rem;
  font-size: 0.95rem;
  font-family: var(--font-display);
}

.page-aside__box ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-aside__box a {
  color: var(--ink-dark-mute);
  font-size: 0.9rem;
}

.page-aside__box a:hover,
.page-aside__box a.is-current {
  color: var(--accent-2);
}

.page-aside__cta {
  display: grid;
  gap: 0.65rem;
}

.page-aside__cta .btn {
  width: 100%;
}

.page-aside__cta .btn--ghost {
  border-color: rgba(18, 36, 51, 0.15);
  color: var(--ink-dark);
  background: transparent;
}

.page-aside__cta .btn--ghost:hover {
  border-color: rgba(26, 155, 176, 0.45);
  background: rgba(46, 196, 182, 0.08);
}

.page .footer {
  margin-top: 0;
}

@media (max-width: 900px) {
  .page-layout {
    grid-template-columns: 1fr;
  }

  .page-aside {
    position: static;
    order: -1;
  }
}