/* ============================================
   THE CONTEXT WINDOW — layout.css
   Nav, footer, page-level layout
   ============================================ */

.site-wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md);
}

@media (max-width: 640px) {
  .site-wrap {
    padding-top: var(--space-lg);
  }
}

/* ============================================
   NAVIGATION
   Lives inside the merged .terminal-bar (see base.css).
   No longer a separate sticky bar — the terminal bar
   itself is the only sticky element, so scroll-hide
   behaviour has been removed (nothing to hide separately
   from the prompt anymore).
   ============================================ */

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-links a {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text);
  transition: color 0.15s ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--color-accent);
}

.nav-links .external-arrow {
  display: inline-block;
  margin-left: 0.2em;
  font-size: 0.9em;
}

/* ---- Find Me dropdown ----
   Desktop: opens on hover/focus via CSS.
   Mobile: toggled via JS (.is-open class), since
   touch devices have no hover state. */

.nav-dropdown {
  position: relative;
}

.nav-dropdown-trigger {
  display: flex;
  align-items: center;
  gap: 0.3em;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-dropdown-trigger .caret {
  display: inline-block;
  font-size: 0.7em;
  transition: transform 0.15s ease;
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: var(--space-sm);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  min-width: 160px;
  padding: var(--space-xs) 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s ease;
  z-index: 110;
}

.nav-dropdown-menu a {
  display: block;
  width: 100%;
  padding: var(--space-xs) var(--space-md);
  font-size: 0.8rem;
  white-space: nowrap;
}

.nav-dropdown-menu a:hover,
.nav-dropdown-menu a:focus-visible {
  background-color: var(--color-bg);
}

/* Desktop hover/focus open */
@media (min-width: 641px) {
  .nav-dropdown:hover .nav-dropdown-menu,
  .nav-dropdown:focus-within .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav-dropdown:hover .caret,
  .nav-dropdown:focus-within .caret {
    transform: rotate(180deg);
  }
}

/* Mobile/touch: JS-toggled open state */
.nav-dropdown.is-open .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown.is-open .caret {
  transform: rotate(180deg);
}

/* Hamburger toggle button — hidden on desktop */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 24px;
  height: 18px;
}

.nav-toggle .bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-accent);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* ---- Mobile breakpoint ---- */
@media (max-width: 640px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }

  .nav-links.nav-open {
    max-height: 320px;
  }

  .nav-links a {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
  }

  .nav-links a:hover,
  .nav-links a:focus-visible {
    background-color: var(--color-bg);
  }

  .nav-dropdown {
    width: 100%;
  }

  .nav-dropdown-trigger {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    justify-content: space-between;
  }

  .nav-dropdown-menu {
    position: static;
    border: none;
    border-top: 1px solid var(--color-border);
    margin-top: 0;
    background-color: var(--color-bg);
    min-width: 0;
    /* mobile open state is JS-toggled, see .is-open above;
       reset the desktop hidden-by-default state so the
       parent .nav-links max-height transition can reveal it */
    opacity: 1;
    visibility: visible;
    transform: none;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.2s ease;
  }

  .nav-dropdown.is-open .nav-dropdown-menu {
    max-height: 160px;
  }
}

/* ============================================
   FOOTER
   Minimal — site name, tagline, two links.
   ============================================ */

.site-footer {
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-2xl);
  padding: var(--space-lg) var(--space-md);
}

.footer-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}

.footer-identity .footer-site-name {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.95rem;
}

.footer-identity .footer-tagline {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-muted);
  margin-top: 0.25rem;
}

.footer-links {
  display: flex;
  gap: var(--space-md);
  flex-direction: column;
  align-items: flex-end;
}

.footer-links a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-accent);
  display: block;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  text-decoration: underline;
}