.announcement {
  position: relative;
  z-index: 40;
  border-bottom: 1px solid rgba(124, 140, 255, 0.18);
  background: rgba(124, 140, 255, 0.08);
}
.announcement__inner {
  display: flex;
  min-height: 2.5rem;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding-block: var(--space-2);
  color: var(--ink-2);
  font-size: 0.78rem;
  text-align: center;
}
.announcement a { color: var(--ink-0); font-weight: 650; }
.announcement a:hover { color: var(--cyan); }
[data-site-header] { display: block; min-height: 7rem; }

.site-header {
  position: sticky;
  z-index: 30;
  top: 0;
  border-bottom: 1px solid transparent;
  background: var(--header-bg);
  backdrop-filter: blur(20px) saturate(150%);
}
.site-header.is-scrolled { border-color: var(--line); }
.nav { display: flex; min-height: 4.5rem; align-items: center; justify-content: space-between; gap: var(--space-4); }
.brand { display: inline-flex; align-items: center; gap: var(--space-3); font-weight: 720; letter-spacing: -0.025em; }
.brand__mark {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border: 1px solid rgba(124, 140, 255, 0.36);
  border-radius: 0.65rem;
  background: linear-gradient(145deg, rgba(124, 140, 255, 0.18), rgba(78, 216, 199, 0.08));
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.08);
}
.brand__mark svg { width: 1.15rem; color: var(--brand-bright); }
.brand__name { white-space: nowrap; }
.nav__desktop { display: none; min-width: 0; }
.mobile-nav, .mobile-nav__actions { display: flex; align-items: center; gap: var(--space-2); }
.nav__toggle, .icon-button {
  display: inline-grid;
  width: 2.75rem;
  height: 2.75rem;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--ink-1);
  background: var(--surface-1);
  cursor: pointer;
}
.nav__toggle:hover, .icon-button:hover { border-color: var(--line-strong); background: var(--surface-2); }
.nav__toggle svg, .icon-button svg { width: 1.2rem; }
.icon-button kbd { display: none; }
.nav__panel {
  position: absolute;
  inset: calc(100% + 1px) 0 auto;
  display: none;
  max-height: calc(100dvh - 7rem);
  overflow-y: auto;
  border-bottom: 1px solid var(--line);
  background: var(--header-solid);
  box-shadow: var(--shadow-lg);
}
.nav__panel.is-open { display: block; }
.nav__links { display: grid; gap: var(--space-1); margin: 0; padding: var(--space-5) var(--space-4); list-style: none; }
.nav__link {
  display: flex;
  min-height: 2.75rem;
  align-items: center;
  padding-inline: var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--ink-2);
  font-size: 0.9rem;
  font-weight: 560;
  transition: color var(--transition), background var(--transition);
}
.nav__link:hover, .nav__link[aria-current="page"] { color: var(--ink-0); background: rgba(124, 140, 255, 0.1); }
.nav__actions { display: grid; flex-shrink: 0; gap: var(--space-3); padding: 0 var(--space-4) var(--space-5); }
.mobile-theme { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin: 0 var(--space-4) var(--space-5); padding: var(--space-3); border: 1px solid var(--line); border-radius: var(--radius-sm); }
.nav__utility { padding: 0 var(--space-4) var(--space-3); }
.nav__utility .button { width: 100%; }
.mobile-theme label { color: var(--ink-2); font-size: 0.82rem; font-weight: 650; }
.theme-control select, .mobile-theme select {
  min-height: 2.35rem;
  padding: 0.35rem 1.8rem 0.35rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  color: var(--ink-2);
  background: var(--surface-1);
  cursor: pointer;
  font-size: 0.76rem;
}

.button {
  display: inline-flex;
  min-height: 2.9rem;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.7rem 1.1rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 680;
  line-height: 1.2;
  white-space: nowrap;
  transition: transform var(--transition), border-color var(--transition), background var(--transition), color var(--transition);
}
.button:hover { transform: translateY(-2px); }
.button--primary { color: var(--on-brand); background: var(--gradient-brand); box-shadow: 0 8px 28px rgba(124, 140, 255, 0.22); }
.button--secondary { border-color: var(--line-strong); color: var(--ink-1); background: var(--card-start); }
.button--secondary:hover { border-color: rgba(124, 140, 255, 0.5); background: rgba(124, 140, 255, 0.08); }
.button--ghost { color: var(--ink-2); background: transparent; }
.button--small { min-height: 2.35rem; padding: 0.5rem 0.8rem; font-size: 0.82rem; }
.button-row { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.text-link { display: inline-flex; align-items: center; gap: var(--space-2); color: var(--brand-bright); font-weight: 650; }
.text-link:hover { color: var(--cyan); }

.ui-icon {
  width: 1.4rem;
  height: 1.4rem;
  flex: 0 0 auto;
  color: var(--brand-bright);
}

.status-dot { width: 0.55rem; height: 0.55rem; flex: 0 0 auto; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 0.3rem rgba(111, 226, 166, 0.09); }
.card {
  position: relative;
  overflow: hidden;
  padding: var(--space-6);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, var(--card-start), var(--card-end));
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.025);
  transition: transform var(--transition), border-color var(--transition), background var(--transition);
}
.card:hover { transform: translateY(-3px); border-color: rgba(124, 140, 255, 0.32); background: linear-gradient(145deg, var(--card-hover), var(--card-end)); }
.card__icon {
  display: grid;
  width: 2.75rem;
  height: 2.75rem;
  margin-bottom: var(--space-8);
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  color: var(--brand-bright);
  background: rgba(124, 140, 255, 0.08);
}
.card h3 { margin-bottom: var(--space-3); }
.card p:last-of-type { margin-bottom: 0; }
.card__link::after { position: absolute; inset: 0; content: ""; }
.card__meta { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-5); }
.card--featured { min-height: 24rem; display: flex; flex-direction: column; justify-content: flex-end; background: var(--gradient-surface), var(--surface-1); }
.card--featured::before { position: absolute; top: -7rem; right: -7rem; width: 18rem; height: 18rem; border: 1px solid rgba(124, 140, 255, 0.18); border-radius: 50%; background: radial-gradient(circle, rgba(124, 140, 255, 0.15), transparent 65%); content: ""; }
.badge { display: inline-flex; align-items: center; width: fit-content; gap: 0.35rem; padding: 0.25rem 0.6rem; border: 1px solid var(--line); border-radius: 999px; color: var(--ink-2); background: var(--card-start); font-family: var(--font-mono); font-size: 0.67rem; font-weight: 650; letter-spacing: 0.04em; text-transform: uppercase; }
.badge--green { border-color: rgba(111, 226, 166, 0.24); color: var(--success); background: rgba(111, 226, 166, 0.06); }
.badge--amber { border-color: rgba(255, 199, 107, 0.25); color: var(--amber); background: rgba(255, 199, 107, 0.06); }

.metric-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border: 1px solid var(--line); border-radius: var(--radius-md); overflow: hidden; }
.metric { min-height: 8rem; padding: var(--space-5); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.metric:nth-child(2n) { border-right: 0; }
.metric:nth-last-child(-n+2) { border-bottom: 0; }
.metric strong { display: block; font-size: clamp(1.6rem, 4vw, 2.8rem); letter-spacing: -0.045em; }
.metric span { color: var(--ink-3); font-size: 0.8rem; }

.code-block {
  --ink-0: #fff;
  --ink-2: #aeb8cc;
  --ink-3: #7d899f;
  --brand-bright: #a6b0ff;
  --cyan: #4ed8c7;
  overflow: hidden;
  border: 1px solid rgba(177, 196, 226, 0.14);
  border-radius: var(--radius-md);
  color-scheme: dark;
  background: var(--code-bg);
  box-shadow: var(--shadow-sm);
}
.code-block__header { display: flex; align-items: center; justify-content: space-between; padding: 0.75rem 1rem; border-bottom: 1px solid rgba(177, 196, 226, 0.14); color: var(--ink-3); font-family: var(--font-mono); font-size: 0.72rem; }
.code-block pre { margin: 0; padding: var(--space-6); overflow-x: auto; color: var(--ink-2); font-family: var(--font-mono); font-size: 0.78rem; line-height: 1.8; }
.copy-button { padding: 0.3rem 0.55rem; border: 1px solid rgba(177, 196, 226, 0.14); border-radius: 0.4rem; color: var(--ink-2); background: transparent; cursor: pointer; font-size: 0.7rem; }
.code-dim { color: var(--ink-3); }
.code-key { color: var(--brand-bright); }
.code-value { color: var(--cyan); }

.check-list {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-6);
  padding: 0;
  list-style: none;
}
.check-list li { position: relative; padding-left: 1.7rem; color: var(--ink-2); }
.check-list li::before {
  position: absolute;
  top: 0.25rem;
  left: 0;
  width: 1rem;
  height: 1rem;
  border: 1px solid rgba(78, 216, 199, 0.45);
  border-radius: 50%;
  color: var(--cyan);
  content: "✓";
  font-size: 0.65rem;
  line-height: 0.9rem;
  text-align: center;
}

.timeline { position: relative; display: grid; gap: var(--space-6); margin: 0; padding: 0; list-style: none; }
.timeline::before { position: absolute; top: 0.5rem; bottom: 0.5rem; left: 0.45rem; width: 1px; background: var(--line-strong); content: ""; }
.timeline__item { position: relative; padding-left: var(--space-8); }
.timeline__item::before { position: absolute; top: 0.38rem; left: 0.15rem; width: 0.65rem; height: 0.65rem; border: 2px solid var(--surface-0); border-radius: 50%; background: var(--brand); box-shadow: 0 0 0 1px var(--brand); content: ""; }
.timeline__item time { color: var(--cyan); font-family: var(--font-mono); font-size: 0.72rem; text-transform: uppercase; }

.feature-list { display: grid; gap: 0; margin: 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.feature-list li { display: grid; grid-template-columns: 2rem 1fr; gap: var(--space-3); padding-block: var(--space-5); border-bottom: 1px solid var(--line); }
.feature-list__number { color: var(--cyan); font-family: var(--font-mono); font-size: 0.72rem; }
.feature-list h3 { margin-bottom: var(--space-2); font-size: 1rem; }
.feature-list p { margin: 0; font-size: 0.88rem; }

.faq { border-top: 1px solid var(--line); }
.faq__item { border-bottom: 1px solid var(--line); }
.faq__question { display: flex; width: 100%; align-items: center; justify-content: space-between; gap: var(--space-4); padding: var(--space-5) 0; border: 0; color: var(--ink-0); background: transparent; cursor: pointer; font-weight: 650; text-align: left; }
.faq__question svg { width: 1rem; flex: 0 0 auto; transition: transform var(--transition); }
.faq__question[aria-expanded="true"] svg { transform: rotate(45deg); }
.faq__answer { max-width: 45rem; padding: 0 0 var(--space-5); }

.callout { position: relative; overflow: hidden; padding: var(--space-8); border: 1px solid rgba(124, 140, 255, 0.25); border-radius: var(--radius-lg); background: linear-gradient(135deg, rgba(124, 140, 255, 0.12), rgba(78, 216, 199, 0.05)); }
.callout::after { position: absolute; right: -7rem; bottom: -10rem; width: 22rem; height: 22rem; border: 1px solid rgba(78, 216, 199, 0.16); border-radius: 50%; content: ""; }
.callout__inner { position: relative; z-index: 1; display: grid; gap: var(--space-6); align-items: center; }
.callout h2 { max-width: 14ch; margin-bottom: var(--space-4); }

.field { display: grid; gap: var(--space-2); }
.field label { color: var(--ink-1); font-size: 0.85rem; font-weight: 650; }
.field input, .field textarea, .field select { width: 100%; min-height: 3rem; padding: 0.75rem 0.9rem; border: 1px solid var(--line-strong); border-radius: var(--radius-sm); color: var(--ink-0); background: var(--surface-1); transition: border-color var(--transition), box-shadow var(--transition); }
.field textarea { min-height: 9rem; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(78, 216, 199, 0.12); }
.field__hint { color: var(--ink-3); font-size: 0.75rem; }
.form-grid { display: grid; gap: var(--space-5); }
.form-status { min-height: 1.5rem; margin-top: var(--space-3); color: var(--cyan); font-size: 0.85rem; }

.filter-bar { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-8); }
.filter-button { padding: 0.55rem 0.8rem; border: 1px solid var(--line); border-radius: 999px; color: var(--ink-2); background: transparent; cursor: pointer; font-size: 0.8rem; font-weight: 650; }
.filter-button:hover, .filter-button[aria-pressed="true"] { color: var(--on-accent); border-color: var(--brand-bright); background: var(--brand-bright); }

[data-breadcrumbs] { display: block; min-height: 3.5rem; }
.breadcrumbs { padding-top: var(--space-6); }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: var(--space-2); margin: 0; padding: 0; list-style: none; color: var(--ink-3); font-size: 0.76rem; }
.breadcrumbs li:not(:last-child)::after { margin-left: var(--space-2); color: var(--line-strong); content: "/"; }
.breadcrumbs a:hover { color: var(--ink-0); }

.newsletter { border-top: 1px solid var(--line); }
.newsletter__inner { display: grid; align-items: center; gap: var(--space-8); }
.newsletter h2 { max-width: 16ch; margin-bottom: var(--space-4); }
.newsletter p { max-width: 40rem; margin-bottom: 0; }

.site-footer { border-top: 1px solid var(--line); background: var(--footer-bg); }
.footer__main { display: grid; gap: var(--space-10); padding-block: var(--space-16); }
.footer__intro { max-width: 23rem; }
.footer__intro p { margin-top: var(--space-5); font-size: 0.9rem; }
.footer__nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-8); }
.footer__group h2 { margin-bottom: var(--space-4); color: var(--ink-1); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; }
.footer__group ul { display: grid; gap: var(--space-2); margin: 0; padding: 0; list-style: none; }
.footer__group a { color: var(--ink-3); font-size: 0.82rem; }
.footer__group a:hover { color: var(--ink-0); }
.footer__bottom { display: flex; flex-direction: column; gap: var(--space-3); padding-block: var(--space-5); border-top: 1px solid var(--line); color: var(--ink-3); font-size: 0.75rem; }
.footer__bottom p { margin: 0; color: inherit; }

.modal {
  width: min(calc(100% - 2rem), 46rem);
  max-height: min(44rem, calc(100dvh - 2rem));
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  color: var(--ink-1);
  background: var(--surface-1);
  box-shadow: var(--shadow-lg);
}
.modal::backdrop { background: rgba(3, 5, 9, 0.72); backdrop-filter: blur(8px); }
.modal__surface { display: grid; max-height: inherit; grid-template-rows: auto auto auto minmax(0, 1fr) auto; padding: var(--space-6); }
.modal__surface--compact { grid-template-rows: auto auto minmax(0, 1fr) auto; }
.modal__header { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-4); }
.modal__header h2 { margin-bottom: var(--space-4); font-size: 1.5rem; }
.search-box { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: var(--space-3); padding: 0.45rem 0.7rem; border: 1px solid var(--line-strong); border-radius: var(--radius-sm); background: var(--surface-0); }
.search-box > svg { width: 1.2rem; color: var(--ink-3); }
.search-box input { min-width: 0; min-height: 2.5rem; border: 0; outline: 0; color: var(--ink-0); background: transparent; }
kbd { padding: 0.15rem 0.38rem; border: 1px solid var(--line); border-bottom-color: var(--line-strong); border-radius: 0.3rem; color: var(--ink-3); background: var(--surface-2); font-family: var(--font-mono); font-size: 0.67rem; }
.search-status { margin: var(--space-4) 0; color: var(--ink-3); font-size: 0.78rem; }
.search-results, .command-list { min-height: 0; overflow-y: auto; }
.search-result { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: var(--space-3) var(--space-4); padding: var(--space-4); border-radius: var(--radius-sm); color: var(--ink-2); text-decoration: none; }
.search-result:is(:hover, .is-active) { color: var(--ink-0); background: rgba(124, 140, 255, 0.08); }
.search-result strong, .search-result small { display: block; }
.search-result small { margin-top: 0.2rem; color: var(--ink-3); }
.search-result mark { color: var(--ink-0); background: rgba(78, 216, 199, 0.17); }
.search-result-group + .search-result-group { margin-top: var(--space-4); padding-top: var(--space-4); border-top: 1px solid var(--line); }
.search-result-group > h3, .search-discovery h3, .command-group { margin: 0 0 var(--space-2); color: var(--ink-3); font: 0.64rem var(--font-mono); letter-spacing: 0.07em; text-transform: uppercase; }
.search-discovery { display: grid; min-height: 0; gap: var(--space-6); overflow-y: auto; padding-block: var(--space-2) var(--space-6); }
.search-discovery__heading { display: flex; align-items: center; justify-content: space-between; }
.search-discovery__heading button { border: 0; color: var(--ink-3); background: transparent; cursor: pointer; font-size: 0.68rem; }
.search-chips { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.search-chips button { padding: 0.5rem 0.72rem; border: 1px solid var(--line); border-radius: 99rem; color: var(--ink-2); background: var(--surface-0); cursor: pointer; font-size: 0.72rem; }
.search-chips button:is(:hover, :focus-visible) { border-color: var(--brand); color: var(--ink-0); }
.search-empty { padding: var(--space-8) var(--space-4); text-align: center; }
.search-empty__icon { display: grid; width: 2.8rem; height: 2.8rem; margin: 0 auto var(--space-4); place-items: center; border: 1px solid var(--line); border-radius: 50%; color: var(--brand-bright); }
.search-empty .text-link { margin-top: var(--space-3); }
.search-shortcuts { margin: var(--space-4) 0 0; color: var(--ink-3); font-size: 0.65rem; text-align: center; }
.command-group { display: block; padding: var(--space-4) var(--space-4) var(--space-2); }
.command-item { display: flex; width: 100%; align-items: center; justify-content: space-between; padding: var(--space-3) var(--space-4); border: 0; border-radius: var(--radius-sm); color: var(--ink-2); background: transparent; cursor: pointer; text-align: left; }
.command-item small { color: var(--ink-3); }
.command-item.is-active { color: var(--ink-0); background: rgba(124, 140, 255, 0.1); }
.command-hint { margin: var(--space-4) 0 0; color: var(--ink-3); font-size: 0.72rem; text-align: center; }

@media (min-width: 42rem) {
  .footer__nav { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .footer__bottom { flex-direction: row; justify-content: space-between; }
}

@media (min-width: 72rem) {
  .nav__desktop { display: flex; align-items: center; }
  .mobile-nav { display: none; }
  .nav__links { display: flex; align-items: center; padding: 0; white-space: nowrap; }
  .nav__actions { display: flex; align-items: center; padding: 0 0 0 var(--space-3); }
  .nav__actions .theme-control,
  .nav__actions > .button--ghost { display: none; }
  .icon-button:has(kbd) { width: auto; grid-template-columns: auto auto; gap: 0.4rem; padding-inline: 0.65rem; }
  .icon-button kbd { display: inline-block; }
  .callout { padding: var(--space-12); }
  .callout__inner { grid-template-columns: 1fr auto; }
  .newsletter__inner { grid-template-columns: 1fr auto; }
  .footer__main { grid-template-columns: 1.2fr 2fr; }
}

@media (min-width: 90rem) {
  .nav__actions .theme-control,
  .nav__actions > .button--ghost { display: block; }
}