/* Site chrome: header, main navigation, footer. */

/* ---------- Logo ---------- */

.logo {
  display: inline-flex;
  align-items: center;
  min-height: var(--tap);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--text-light);
  white-space: nowrap;
}

.logo,
.logo__inner {
  gap: 0.5em;
}

/* Header wraps mark + wordmark in an aria-hidden span (the link has its own label) */
.logo__inner {
  display: inline-flex;
  align-items: center;
}

/* The mark is sized in em, so it scales with the wordmark (header, footer, mobile) */
.logo__mark {
  display: block;
  flex: none;
  height: 1.15em;
}

.logo__mark svg {
  display: block;
  width: auto;
  height: 100%;
}

.logo__slash {
  color: var(--accent);
}

/* ---------- Header ---------- */

.site-header {
  position: relative;
  z-index: 20;
  background: var(--black);
  border-bottom: 1px solid var(--line-dark);
}

.site-header__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-right: -12px;
  padding: 0;
  background: transparent;
  border: 0;
  color: var(--text-light);
  cursor: pointer;
}

.nav-toggle svg {
  width: 26px;
  height: 26px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__open,
.nav-toggle[aria-expanded="false"] .nav-toggle__close {
  display: none;
}

/* ---------- Main navigation ---------- */

.site-nav {
  font-family: var(--font-mono);
}

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

.site-nav__link[aria-current] {
  color: var(--accent);
}

/* Mobile: large rows, burger-controlled panel */
@media (max-width: 47.99rem) {
  .site-nav {
    flex-basis: 100%;
    padding-bottom: 28px;
  }

  /* Without JS the menu stays visible in the flow below the logo */
  .js .nav-toggle {
    display: inline-flex;
  }

  .js .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    padding: 16px var(--gutter) 28px;
    background: var(--black);
    border-bottom: var(--border) solid var(--accent);
  }

  .js .site-nav.is-open {
    display: block;
  }

  .site-nav__link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 60px;
    border-bottom: 1px solid var(--line-dark);
    font-size: 1.5rem;
    font-weight: 700;
  }

  .site-nav__marker::before {
    content: "→";
    color: var(--accent);
  }

  .site-nav__link[aria-current] .site-nav__marker::before {
    content: "";
    display: block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: currentColor;
  }

  .site-nav__cta {
    margin-top: 20px;
  }

  .site-nav__cta .btn {
    display: flex;
    width: 100%;
    min-height: 56px;
  }
}

/* Desktop: inline menu */
@media (min-width: 48rem) {
  .logo {
    font-size: 1.5rem;
  }

  .site-nav__list {
    display: flex;
    align-items: center;
    gap: 32px;
  }

  .site-nav__link {
    display: inline-flex;
    align-items: center;
    min-height: var(--tap);
    border-block: 3px solid transparent;
    font-size: 1rem;
  }

  .site-nav__link:hover {
    color: var(--accent);
  }

  .site-nav__link[aria-current] {
    border-bottom-color: var(--accent);
  }

  .site-nav__marker {
    display: none;
  }

  .site-nav__cta .btn:hover {
    background: var(--text-light);
  }
}

/* ---------- Footer ---------- */

.site-footer {
  padding-block: 36px 32px;
  background: var(--black);
  color: var(--text-light);
}

.site-footer--ruled {
  border-top: 1px solid var(--line-dark);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px 24px;
}

.site-footer__brand {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.site-footer__brand .logo {
  min-height: 0;
  font-size: 1.25rem;
}

.site-footer__brand p {
  max-width: 320px;
  font-size: var(--fs-small);
  line-height: 1.5;
  color: var(--muted-dark);
}

.site-footer__col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.site-footer__heading {
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--accent);
}

.site-footer__col ul {
  list-style: none;
  padding: 0;
}

.site-footer__col a {
  display: inline-flex;
  align-items: center;
  min-height: var(--tap);
  font-size: 0.875rem;
  color: var(--muted-dark);
}

.site-footer__col a:hover {
  color: var(--text-light);
  text-decoration: underline;
}

.site-footer__copy {
  margin-top: 28px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
}

@media (min-width: 48rem) {
  .site-footer {
    padding-block: 56px 48px;
  }

  .site-footer__grid {
    grid-template-columns: minmax(0, 2fr) repeat(3, minmax(0, 1fr));
    gap: 32px;
  }

  .site-footer__brand {
    grid-column: auto;
    gap: 12px;
  }

  .site-footer__heading {
    margin-bottom: 8px;
    font-size: var(--fs-small);
  }

  .site-footer__col a {
    font-size: var(--fs-small);
  }

  .site-footer__copy {
    margin-top: 48px;
    font-size: 0.8125rem;
  }
}