/* Shared site header — used by React app + static pages (about/blog/etc). */
.logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  width: fit-content;
  max-width: 100%;
}

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

.site-header .logo {
  height: 36px;
  justify-self: start;
}

.site-header .logo svg,
.site-header .logo .logo__image {
  width: auto;
  height: 36px;
  display: block;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 130;
  height: var(--header-h);
  background: color-mix(in srgb, var(--bg-primary) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}

/* Keep header bar opaque while the drawer is open so page content never shows through. */
.site-header:has(+ .mobile-nav.is-open) {
  background: var(--bg-primary, #f7f6f2);
  backdrop-filter: none;
}

.site-header.is-scrolled {
  border-bottom-color: var(--divider);
  background: color-mix(in srgb, var(--bg-primary) 94%, transparent);
}

.site-header__inner {
  height: 100%;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
}

.site-header__nav {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2vw, 28px);
}

.site-header__link {
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 22px;
  font-weight: 400;
  color: var(--text-secondary);
  transition: color 0.2s var(--ease), font-weight 0.2s var(--ease);
}

.site-header__link:hover {
  color: var(--text-primary);
}

.site-header__link[aria-current="page"] {
  color: var(--text-primary);
  font-weight: 700;
}

.site-header__actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
}

.site-header__icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--text-secondary);
  border-radius: 50%;
  transition: color 0.2s var(--ease);
}

.site-header__icon-btn:hover {
  color: var(--text-primary);
}

.site-header__icon-btn svg {
  display: block;
}

.menu-toggle {
  display: none;
  width: 36px;
  height: 36px;
  position: relative;
}

.menu-toggle span {
  position: absolute;
  left: 8px;
  right: 8px;
  height: 1px;
  background: var(--text-primary);
  transition: transform 0.25s var(--ease), top 0.25s var(--ease);
}

.menu-toggle span:first-child {
  top: 14px;
}

.menu-toggle span:last-child {
  top: 20px;
}

.menu-toggle.is-open span:first-child {
  top: 17px;
  transform: rotate(45deg);
}

.menu-toggle.is-open span:last-child {
  top: 17px;
  transform: rotate(-45deg);
}

.mobile-nav {
  display: none;
}

@media (max-width: 900px) {
  .site-header__inner {
    grid-template-columns: 1fr auto;
  }

  .site-header__nav,
  .site-header__actions .site-header__icon-btn {
    display: none;
  }

  .menu-toggle {
    display: inline-block;
  }

  .mobile-nav {
    display: block;
    position: fixed;
    top: var(--header-h);
    right: 0;
    bottom: 0;
    left: 0;
    width: 100%;
    height: auto;
    box-sizing: border-box;
    background: #f7f6f2;
    background: var(--bg-primary, #f7f6f2);
    padding: 28px var(--page-pad, 20px) 40px;
    transform: translateX(100%);
    transition: transform 0.3s var(--ease, cubic-bezier(0.22, 1, 0.36, 1));
    z-index: 120;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .mobile-nav.is-open {
    transform: translateX(0);
  }

  .mobile-nav nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  .mobile-nav a {
    padding: 14px 0;
    border-bottom: 1px solid var(--divider, #d7d5ce);
    font-family: var(--font-sans);
    font-size: 18px;
    font-weight: 500;
    color: var(--text-secondary, #777773);
  }

  .mobile-nav a[aria-current="page"] {
    color: var(--text-primary, #202020);
    font-weight: 700;
  }

  .mobile-nav__cta {
    margin-top: 28px;
    display: grid;
    gap: 12px;
  }
}

/* ——— Shared site footer (homepage + static pages) ——— */
.site-footer {
  background: #1a1a1a;
  color: #f2f1ed;
  border-top: none;
  padding-top: clamp(48px, 7vh, 80px);
  padding-bottom: 32px;
}

.site-footer__top {
  display: grid;
  grid-template-columns: minmax(180px, 0.8fr) 2fr;
  gap: 48px;
  padding-bottom: 0;
  border-bottom: none;
}

.site-footer .logo {
  height: 32px;
}

.site-footer .logo svg,
.site-footer .logo .logo__image {
  width: auto;
  height: 32px;
  display: block;
}

.site-footer__brand p {
  margin-top: 14px;
  font-size: 13px;
  color: rgba(242, 241, 237, 0.62);
}

.site-footer__cols {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}

.site-footer__col h3 {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
  color: #f2f1ed;
}

.site-footer__col a {
  display: inline-block;
  padding: 5px 0;
  font-size: 14px;
  color: rgba(242, 241, 237, 0.62);
}

.site-footer__col a:hover {
  color: #f2f1ed;
}

@media (max-width: 900px) {
  .site-footer__top,
  .site-footer__cols {
    grid-template-columns: 1fr;
  }
}