/* @mctlhq/css 0.15.0 — site.css. */
/*
 * Public-site layout: the one shell mctl.ai, docs.mctl.ai and tg.mctl.ai
 * share. theme.css already carries the tokens (page width, gutter, header,
 * wordmark, hero and section type); this sheet assembles them into the
 * container, header, hero, section, card grid, reading column and footer, so
 * the three sites stop each re-deriving the same box from the same numbers.
 *
 * Every class is prefixed `mctl-site-` and sets only the properties it owns,
 * so it can sit next to a framework's own styles (Nuxt, VitePress) without a
 * reset. Requires theme.css; global.css is optional, so every class whose
 * size depends on its padding or border sets box-sizing itself rather than
 * relying on global.css's universal border-box.
 *
 * Contract, measured at any viewport:
 *   - content box: at most --site-content-width wide, centred, with
 *     --site-gutter on both sides. The container's max-width therefore adds
 *     both gutters back, because under border-box the padding counts inside
 *     max-width (the bug tg.mctl.ai had before 0.15.0: brand one gutter in);
 *   - the header brand, the hero, every section title and the card grid all
 *     start on the content box's left edge;
 *   - hero: text left, optional visual right; one column below 960px;
 *   - long-form reading text is capped at --mctl-layout-prose-width;
 *   - footer: full-bleed, centred.
 */

.mctl-site-container {
  box-sizing: border-box;
  width: 100%;
  max-width: calc(var(--site-content-width) + 2 * var(--site-gutter));
  margin-inline: auto;
  padding-inline: var(--site-gutter);
}

/* ===== Header ===== */
.mctl-site-header {
  box-sizing: border-box;
  position: sticky;
  top: 0;
  z-index: var(--mctl-z-index-nav);
  height: var(--site-header-height);
  background: var(--site-header-bg);
  -webkit-backdrop-filter: blur(var(--site-header-blur));
  backdrop-filter: blur(var(--site-header-blur));
  border-bottom: 1px solid var(--site-header-border);
}

.mctl-site-header__inner {
  display: flex;
  align-items: center;
  gap: 16px;
  height: 100%;
}

.mctl-site-brand {
  display: inline-flex;
  align-items: center;
  margin-right: auto;
  line-height: 1;
  color: var(--surface-fg);
  font-family: var(--font-display);
  font-size: var(--site-wordmark-size);
  font-weight: var(--site-wordmark-weight);
  letter-spacing: var(--site-wordmark-tracking);
  text-decoration: none;
}

.mctl-site-brand__accent {
  color: var(--accent);
  margin-right: var(--site-wordmark-accent-gap);
}

.mctl-site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  font-family: var(--font-display);
  font-size: var(--site-nav-size);
  font-weight: var(--site-nav-weight);
}

.mctl-site-nav a {
  color: var(--surface-fg-muted);
  text-decoration: none;
}

.mctl-site-nav a:hover,
.mctl-site-nav a[aria-current='page'] {
  color: var(--surface-fg);
}

/* ===== Hero ===== */
.mctl-site-hero {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  align-items: center;
  gap: 48px;
  padding-block: var(--mctl-layout-section-padding);
  text-align: start;
}

/* Without a visual the text still keeps the left column's width rather than
   stretching across the page, so its line length matches a hero that has one. */
.mctl-site-hero__text {
  grid-column: 1;
  display: grid;
  gap: var(--mctl-layout-stack);
  justify-items: start;
}

.mctl-site-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--text-hero-size);
  font-weight: var(--text-hero-weight);
  line-height: var(--text-hero-leading);
  letter-spacing: var(--text-hero-tracking);
  color: var(--surface-fg);
}

.mctl-site-hero__lede {
  margin: 0;
  font-size: var(--text-subtitle-size);
  font-weight: var(--text-subtitle-weight);
  line-height: var(--text-subtitle-leading);
  letter-spacing: var(--text-subtitle-tracking);
  color: var(--surface-fg-muted);
}

.mctl-site-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.mctl-site-hero__visual {
  grid-column: 2;
  display: flex;
  justify-content: center;
  align-items: center;
  min-width: 0;
}

@media (max-width: 959px) {
  .mctl-site-hero {
    grid-template-columns: minmax(0, 1fr);
  }

  .mctl-site-hero__visual {
    grid-column: 1;
    grid-row: 2;
  }
}

/* ===== Sections ===== */
.mctl-site-section {
  padding-block: var(--mctl-layout-section-padding);
}

.mctl-site-section + .mctl-site-section {
  padding-top: 0;
}

.mctl-site-section__title {
  margin: 0 0 var(--mctl-layout-stack);
  font-family: var(--font-display);
  font-size: var(--text-section-size);
  font-weight: var(--text-section-weight);
  line-height: var(--text-section-leading);
  letter-spacing: var(--text-section-tracking);
  color: var(--surface-fg);
  text-align: start;
}

.mctl-site-section__lede {
  margin: 0 0 var(--mctl-layout-stack);
  max-width: var(--mctl-layout-prose-width);
  font-size: var(--text-body-size);
  line-height: var(--text-body-leading);
  color: var(--surface-fg-muted);
}

/* ===== Card grid ===== */
.mctl-site-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--mctl-layout-stack);
}

@media (max-width: 959px) {
  .mctl-site-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 639px) {
  .mctl-site-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ===== Reading column (security, privacy, terms, articles) ===== */
.mctl-site-prose {
  max-width: var(--mctl-layout-prose-width);
}

/* ===== Footer ===== */
.mctl-site-footer {
  padding-block: 48px;
  background: color-mix(in srgb, var(--surface-elevated) 85%, transparent);
  border-top: 1px solid var(--surface-line);
  text-align: center;
}

.mctl-site-footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.mctl-site-footer__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 32px;
  font-family: var(--font-display);
  font-size: var(--site-nav-size);
}

.mctl-site-footer__links a {
  color: var(--accent-text);
  text-decoration: none;
}

.mctl-site-footer__links a:hover {
  color: var(--surface-fg);
}

.mctl-site-footer__copy {
  margin: 0;
  font-size: var(--text-caption-size);
  color: var(--surface-fg-muted);
}