/*
 * AISolver CMS — base public-site CSS (SPEC §2, §4).
 * Built on tokens.css. Reproduces the container, the large-left + small-right two-column
 * grid, header, and footer from the original "recap" theme. Phase 1 = the layout shell.
 */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--cs-font-base);
  font-size: var(--cs-font-base-size);
  line-height: var(--cs-font-base-line-height);
  color: var(--cs-color-primary);
  background: var(--cs-site-background);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--cs-color-accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--cs-font-display);
  font-weight: 600;
  line-height: var(--cs-heading-line-height);
  letter-spacing: var(--cs-heading-letter-spacing);
  margin: 0 0 1rem;
}

h1 {
  font-size: var(--cs-h1-size);
}
h2 {
  font-size: var(--cs-h2-size);
}
h3 {
  font-size: var(--cs-h3-size);
}

/* headings drop one step below the tablet breakpoint (SPEC §2.4) */
@media (max-width: 767.98px) {
  h1 {
    font-size: var(--cs-h2-size);
  }
  h2 {
    font-size: var(--cs-h3-size);
  }
  h3 {
    font-size: var(--cs-h4-size);
  }
}

/* ---- container ---- */
.cms-container {
  width: 100%;
  margin-inline: auto;
  padding-inline: var(--cs-container-gutter);
  max-width: var(--cs-container-mobile);
}
@media (min-width: 768px) {
  .cms-container {
    max-width: var(--cs-container-tablet);
  }
}
@media (min-width: 992px) {
  .cms-container {
    max-width: var(--cs-container-desktop);
  }
}

/* ---- header ---- */
.cms-header {
  background: var(--cs-header-background);
  border-bottom: 1px solid var(--cs-color-border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.cms-header__inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: var(--cs-header-height);
}
.cms-header__logo {
  font-family: var(--cs-font-display);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: -0.06em;
  color: var(--cs-color-primary);
}
.cms-nav {
  display: none;
  gap: 1.25rem;
  margin-left: auto;
}
.cms-nav a {
  color: var(--cs-color-primary);
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: -0.02em;
}
@media (min-width: 992px) {
  .cms-nav {
    display: flex;
  }
}
.cms-header__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-left: auto;
}
@media (min-width: 992px) {
  .cms-header__actions {
    margin-left: 0;
  }
}

.cms-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  border-radius: var(--cs-radius-button);
  background: var(--cs-color-button);
  color: var(--cs-color-button-contrast);
  font-weight: 600;
  font-size: 0.875rem;
  border: 0;
  cursor: pointer;
}
.cms-button:hover {
  background: var(--cs-color-button-hover);
  text-decoration: none;
}
.cms-button--ghost {
  background: transparent;
  color: var(--cs-color-primary);
  border: 1px solid var(--cs-color-border);
}

/* ---- the large-left + small-right two-column layout (SPEC §2.2) ---- */
.cms-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--cs-column-gap);
  padding-block: 1.25rem 3rem;
}
@media (min-width: 992px) {
  .cms-layout--sidebar {
    grid-template-columns: calc(100% - 300px - var(--cs-column-gap)) 300px;
  }
}
@media (min-width: 1200px) {
  .cms-layout--sidebar {
    grid-template-columns: var(--cs-content-width) minmax(300px, var(--cs-sidebar-width));
  }
}
@media (min-width: 1280px) {
  .cms-layout--sidebar {
    grid-template-columns: var(--cs-content-width) var(--cs-sidebar-width);
  }
}

.cms-content {
  min-width: 0;
}
.cms-sidebar {
  min-width: 0;
}

/* ---- card surface ---- */
.cms-card {
  background: var(--cs-layout-background);
  border: 1px solid var(--cs-color-border);
  border-radius: var(--cs-radius-card);
  padding: 1.5rem;
}

/* ---- footer ---- */
.cms-footer {
  background: var(--cs-footer-background);
  border-top: 1px solid var(--cs-color-border);
  padding-block: 2.5rem;
  margin-top: 4rem;
}
.cms-footer__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
  justify-content: space-between;
}
.cms-footer__tagline {
  color: var(--cs-color-secondary);
  max-width: 32rem;
}
.cms-footer__copyright {
  color: var(--cs-color-secondary);
  font-size: 0.875rem;
  width: 100%;
}

/* small uppercase eyebrow (category label / section heading) */
.cms-eyebrow {
  font-family: var(--cs-font-base);
  font-weight: 700;
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cs-color-secondary);
}