/* Shared component styles. One block per component, BEM-ish naming.
   Tokens only — no raw hex values (enforced by gate test). */

/* Buttons */
.button {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius);
  border: 2px solid transparent;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast),
    border-color var(--transition-fast);
}

.button--primary {
  background: var(--color-action);
  color: var(--color-on-primary);
}

.button--primary:hover {
  background: var(--color-primary);
}

.button--secondary {
  background: transparent;
  color: var(--color-primary-bright);
  border-color: var(--color-primary-bright);
}

.button--secondary:hover {
  background: var(--color-surface-alt);
}

/* Card */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow: var(--shadow-1);
}

.card > :last-child {
  margin-bottom: 0;
}

/* Stat block */
.stat {
  text-align: center;
}

.stat__value {
  display: block;
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-primary-bright);
  line-height: var(--leading-tight);
}

.stat__label {
  display: block;
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Eyebrow label */
.eyebrow {
  display: block;
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  /* Deep blue, not action blue: the bright blue misses 4.5:1 on
     --color-surface-alt bands (WCAG 1.4.3). ink-strong tracks primary in
     the light scheme and flips light in the dark scheme. */
  color: var(--color-ink-strong);
  margin-bottom: var(--space-2);
}

/* Section header pattern: eyebrow + h2 + lede */
.section-header {
  max-width: 46rem;
  margin-bottom: var(--space-5);
}

.section-header .lede {
  font-size: var(--text-md);
  max-width: 60ch;
}

/* ---------------------------------------------------------------- */
/* Site header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-surface);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.site-header.is-scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-1);
}

.site-header__inner {
  max-width: var(--content-max);
  margin-inline: auto;
  padding: var(--space-2) var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.brand {
  display: inline-flex;
  text-decoration: none;
  flex-shrink: 0;
}

.brand__logo-name {
  font-family: var(--font-sans);
  font-size: 24px;
  font-weight: 700;
  fill: var(--color-ink-strong);
}

.brand__logo-sub {
  font-family: var(--font-sans);
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: 0.22em;
  fill: var(--color-ink);
}

/* Primary nav + dropdowns (CSS-first, JS enhances aria state) */
.site-nav {
  flex: 1;
}

.site-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.site-nav__item {
  position: relative;
}

.site-nav__link,
.site-nav__toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  color: var(--color-ink);
  text-decoration: none;
  background: none;
  border: 0;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: var(--text-base);
}

.site-nav__link:hover,
.site-nav__toggle:hover {
  color: var(--color-primary-bright);
  background: var(--color-surface-alt);
}

.site-nav__caret {
  width: 10px;
  height: 10px;
  transition: transform var(--transition-fast);
}

.site-nav__toggle[aria-expanded="true"] .site-nav__caret {
  transform: rotate(180deg);
}

.dropdown {
  list-style: none;
  margin: 0;
  padding: var(--space-2);
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 16rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-2);
  display: none;
}

/* CSS-first open states; JS mirrors these with aria-expanded */
.site-nav__item:hover > .dropdown,
.site-nav__item:focus-within > .dropdown,
.site-nav__toggle[aria-expanded="true"] + .dropdown {
  display: block;
}

.dropdown a {
  display: block;
  padding: var(--space-2) var(--space-3);
  color: var(--color-ink);
  text-decoration: none;
  border-radius: var(--radius);
}

.dropdown a:hover {
  background: var(--color-surface-alt);
  color: var(--color-primary-bright);
}

/* Header actions (search stub + contact sales) */
.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-left: auto;
}

.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: var(--radius);
  background: none;
  color: var(--color-ink);
  cursor: pointer;
}

.icon-button:hover {
  background: var(--color-surface-alt);
  color: var(--color-primary-bright);
}

/* Mobile hamburger + full-screen panel */
.site-header__menu-toggle {
  display: none;
}

@media (max-width: 900px) {
  .site-header__menu-toggle {
    display: inline-flex;
  }

  .site-nav {
    display: none;
  }

  .site-nav.is-open {
    display: block;
    position: fixed;
    inset: 61px 0 0 0;
    background: var(--color-surface);
    overflow-y: auto;
    padding: var(--space-4) var(--space-3);
    z-index: 40;
  }

  .site-nav.is-open .site-nav__list {
    flex-direction: column;
    gap: var(--space-2);
  }

  .site-nav.is-open .dropdown {
    position: static;
    display: block;
    box-shadow: none;
    border: 0;
    padding-left: var(--space-4);
    min-width: 0;
  }

  .site-header__actions .button {
    display: none;
  }
}

/* ---------------------------------------------------------------- */
/* Site footer */
.site-footer {
  background: var(--color-primary);
  color: var(--color-on-primary);
  margin-top: var(--space-7);
}

.site-footer a {
  color: var(--color-on-primary);
}

.site-footer__inner {
  max-width: var(--content-max);
  margin-inline: auto;
  padding: var(--space-6) var(--space-3) var(--space-4);
}

.site-footer__groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: var(--space-5);
}

.site-footer__heading {
  font-size: var(--text-base);
  color: var(--color-on-primary);
  margin-block: 0 var(--space-2);
}

.site-footer__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer__list a {
  display: inline-block;
  padding-block: var(--space-1);
  text-decoration: none;
}

.site-footer__list a:hover {
  text-decoration: underline;
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3) var(--space-4);
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.25);
  font-size: var(--text-sm);
}

.site-footer__legal-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: var(--space-3);
}

.site-footer__social {
  list-style: none;
  margin: 0 0 0 auto;
  padding: 0;
  display: flex;
  gap: var(--space-2);
}

.site-footer__social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
}

.site-footer__social a:hover {
  background: var(--color-primary-bright);
}

.site-footer__legal {
  margin: 0;
}