/*
 * site-chrome.css — header and footer layout
 * Direction A warm-paper redesign
 *
 * Loaded on all pages via @import in styles.css.
 * Do not add page-specific rules here.
 */

/* ── Reset ──────────────────────────────────────────────────────────────── */
.site-header *,
.site-footer * {
  box-sizing: border-box;
}

/* ═══════════════════════════════════════════════════════════════════════════
   HEADER
   3-column grid: [wordmark + city] [nav] [actions]
═══════════════════════════════════════════════════════════════════════════ */

.site-header {
  position: sticky !important;
  top: 0 !important;
  z-index: 100;
  width: 100%;
  border-bottom: 1px solid var(--color-line);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  background: rgba(245, 240, 232, 0.86);
}

.header-inner {
  max-width: var(--container-max-w);
  margin-inline: auto;
  padding: 14px var(--section-px);
}

/* Desktop: 3-column grid */
.header-desktop {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
}

/* ── Left zone: wordmark + city switcher ──────────────────────────────── */
.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo-link,
.zopart-logo {
  font-family: var(--font-brand);
  font-weight: 700;
  font-size: 1.375rem;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--color-ink);
  text-decoration: none;
  display: inline-block;
  margin: 0;
  padding: 0;
}
.logo-link:hover,
.zopart-logo:hover {
  color: var(--color-ink-2);
  text-decoration: none;
}

/* City switcher — trigger button */
.city-switcher {
  position: relative;
}

button.city-switcher-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent !important;
  border: 1px solid var(--color-line) !important;
  border-radius: 999px !important;
  box-shadow: none !important;
  padding: 6px 12px 6px 14px;
  font-family: var(--font-mono);
  font-size: 0.656rem;
  color: var(--color-ink);
  letter-spacing: var(--tracking-mono);
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 150ms ease;
  line-height: 1;
}
.city-switcher-btn:hover {
  border-color: var(--color-ink);
}
.city-switcher-btn[aria-expanded="true"] .city-switcher-chevron {
  transform: rotate(180deg);
}
.city-switcher-chevron {
  display: block;
  flex-shrink: 0;
  transition: transform 200ms ease;
}

/* City switcher — dropdown */
.city-switcher-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 180px;
  background: var(--color-paper);
  border: 1px solid var(--color-line);
  border-radius: 12px !important;
  box-shadow: 0 12px 32px rgba(26, 22, 18, 0.18);
  padding: 6px;
  z-index: var(--z-dropdown);
  display: none;
}
.city-switcher-dropdown.is-open {
  display: block;
}

button.city-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: transparent !important;
  border: none !important;
  padding: 9px 12px;
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  color: var(--color-ink);
  text-align: left;
  border-radius: 999px !important;
  box-shadow: none !important;
  cursor: pointer;
  transition: background 120ms ease;
}
.city-option:hover,
.city-option[aria-selected="true"] {
  background: var(--color-paper-deep);
}
.city-option-country {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--color-muted);
  letter-spacing: 0.06em;
}
.city-sep {
  height: 1px;
  background: var(--color-line);
  margin: 4px 6px;
}

/* ── Centre zone: nav links ───────────────────────────────────────────── */
.header-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  justify-content: center;
}

.nav-link {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-ink-2);
  text-decoration: none;
  padding-bottom: 4px;
  border-bottom: 1px solid transparent;
  transition: color 150ms ease, border-color 150ms ease;
  letter-spacing: 0.01em;
  line-height: 1;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  cursor: pointer;
  padding-top: 0;
  padding-inline: 0;
}
.nav-link:hover {
  color: var(--color-ink);
  text-decoration: none;
  border-bottom-color: var(--color-ink);
}
.nav-link--active {
  color: var(--color-ink);
  border-bottom-color: var(--color-ink);
}

.header-nav .nav-link {
  font-weight: 500;
}

/* ── Right zone: search + auth ────────────────────────────────────────── */
.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 18px;
}

.search-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  color: var(--color-ink-2);
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  text-decoration: none;
  transition: color 150ms ease;
}
.search-btn:hover {
  color: var(--color-ink);
}

.nav-btn {
  display: inline-flex;
  align-items: center;
  border: 1px solid currentColor !important;
  background: transparent;
  color: var(--color-ink);
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 400;
  padding: 6px 14px !important;
  border-radius: 999px !important;
  cursor: pointer;
  letter-spacing: 0.03em;
  transition: background 150ms ease, color 150ms ease;
  text-decoration: none;
  line-height: 1;
}
.nav-btn:hover {
  background: var(--color-ink);
  color: var(--color-paper);
}

/* ── Mobile layout (< 768px) ──────────────────────────────────────────── */
.header-brandrow,
.header-home,
.header-signin-icon {
  display: none;
}

.header-mobile {
  display: none;
}

.header-mobile-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.header-mobile-nav {
  display: none;
}

.header-mobile-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

button.header-signin-icon,
button.header-home {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  min-width: 34px;
  min-height: 34px;
  border-radius: 50% !important;
  border: 1px solid var(--color-ink);
  background: transparent;
  color: var(--color-ink);
  cursor: pointer;
  flex-shrink: 0;
  padding: 0;
  box-sizing: border-box;
  overflow: visible;
}

/* ── Breakpoints ──────────────────────────────────────────────────────── */
@media (max-width: 1023px) {
  .header-inner { padding-inline: 28px; }
}

@media (max-width: 767px) {
  .header-desktop { display: none; }

  .header-inner {
    padding-inline: 20px;
    padding-block: 0;
  }

  /* Centered wordmark row — collapses on scroll */
  .header-brandrow {
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    max-height: 50px;
    opacity: 1;
    padding: 11px 0 3px;
    transition: max-height 0.3s ease, opacity 0.22s ease, padding 0.3s ease;
  }

  .header-scrolled .header-brandrow {
    max-height: 0;
    opacity: 0;
    padding-top: 0;
    padding-bottom: 0;
  }

  /* Functional bar: [home/city] · links · actions */
  .header-mobile {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    column-gap: 16px;
    align-items: center;
    padding-block: 14px;
  }

  /* Home icon: collapsed by default, expands once scrolled */
  button.header-home {
    max-width: 0;
    min-width: 0;
    opacity: 0;
    border-width: 0;
    margin-left: -14px;
    overflow: hidden;
    transition: max-width 0.28s ease, min-width 0.28s ease, opacity 0.2s ease, margin-left 0.28s ease, border-width 0.28s ease;
  }

  .header-scrolled button.header-home {
    max-width: 34px;
    min-width: 34px;
    opacity: 1;
    border-width: 1px;
    margin-left: 0;
  }

  /* Links right-aligned so they don't shift when city label resizes */
  .header-mobile-nav {
    display: flex;
    gap: 22px;
    justify-content: flex-end;
    font-size: 0.875rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .header-mobile-nav::-webkit-scrollbar {
    display: none;
  }

  .header-mobile-nav .nav-link {
    white-space: nowrap;
  }

  .header-signin-icon {
    display: inline-flex;
  }
}

@media (max-width: 639px) {
  .header-inner { padding-inline: 16px; }
  .header-mobile { column-gap: 12px; }
}


/* ═══════════════════════════════════════════════════════════════════════════
   FOOTER
   4-column grid: [brand] [Browse] [Cities] [About]
═══════════════════════════════════════════════════════════════════════════ */

.site-footer {
  background: var(--color-paper);
  border-top: 1px solid var(--color-line);
  margin-top: auto;
}

.footer-inner {
  max-width: var(--container-max-w);
  margin-inline: auto;
  padding: 64px var(--section-px) 48px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--color-line);
}

/* Footer wordmark — larger than header logo */
.footer-wordmark {
  font-family: var(--font-brand);
  font-weight: 700;
  font-size: 2.25rem;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--color-ink);
  text-decoration: none;
  display: inline-block;
}
.footer-wordmark:hover {
  color: var(--color-ink-2);
  text-decoration: none;
}

/* Brand column */
.footer-brand-tagline {
  margin-top: 16px;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--color-ink-3);
  max-width: 360px;
}

.footer-social {
  margin-top: 22px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-social-link {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--color-line);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-ink-2);
  text-decoration: none;
  transition: border-color 160ms ease, color 160ms ease, background 160ms ease;
  flex-shrink: 0;
}
.footer-social-link:hover {
  border-color: var(--color-ink);
  color: var(--color-ink);
  background: var(--color-paper-deep);
}

/* Link columns */
.footer-col-heading {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-muted);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin: 0 0 14px 0;
  font-weight: 400;
}

.footer-links-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links-list a,
.footer-links-list button {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-ink-2);
  text-decoration: none;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  transition: color 150ms ease;
  text-align: left;
}
.footer-links-list a:hover,
.footer-links-list button:hover {
  color: var(--color-ink);
}

/* Bottom bar */
.footer-bottom {
  padding-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.footer-bottom-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-muted);
  letter-spacing: 0.5px;
}
.footer-bottom-bar a {
  color: inherit;
  text-decoration: none;
  transition: color 150ms ease;
}
.footer-bottom-bar a:hover {
  color: var(--color-ink);
}

.footer-copyright {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-muted);
  letter-spacing: 0.4px;
  line-height: 1.6;
  text-align: center;
  margin: 0;
}

/* ── Responsive footer ────────────────────────────────────────────────── */
@media (max-width: 1023px) {
  .footer-inner  { padding-inline: 28px; }
  .footer-grid   { grid-template-columns: 1fr 1fr; gap: 36px; }
}

@media (max-width: 639px) {
  .footer-inner  { padding: 48px 18px 40px; }
  .footer-grid   { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom-bar { flex-direction: column; gap: 8px; text-align: center; }
}

/* ── Utility ──────────────────────────────────────────────────────────── */
.hidden { display: none !important; }