/* ══════════════════════════════════════
   Site-wide navigation
   Depends on CSS custom properties defined per-page (:root).
   ══════════════════════════════════════ */

#site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  background: var(--cream);
  border-bottom: 1px solid var(--sage-soft);
  padding: 0 32px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: box-shadow 0.25s ease;
}

#site-nav.nav-scrolled {
  box-shadow: 0 2px 20px rgba(0,0,0,0.07);
  border-bottom-color: transparent;
}

/* ── Logo ── */
.nav-logo {
  font-family: 'Quicksand', 'Trebuchet MS', sans-serif;
  font-weight: 700;
  font-size: 15px;
  color: var(--sage-ink);
  letter-spacing: 0.5px;
  text-decoration: none;
  flex-shrink: 0;
  transition: color 0.2s;
}
.nav-logo:hover { color: var(--sage-deep); }

/* ── Link list ── */
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links > li { position: relative; }

.nav-links a {
  display: block;
  text-decoration: none;
  color: var(--muted);
  font-family: 'Quicksand', 'Trebuchet MS', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: var(--radius-pill, 999px);
  transition: color 0.2s, background 0.2s;
}

.nav-links a:hover {
  color: var(--sage-deep);
  background: var(--sage-mist);
}

.nav-links a.nav-active {
  color: var(--sage-deep);
  background: var(--sage-mist);
}

/* CV gets a bordered pill */
.nav-links .nav-item-cv a {
  border: 1.5px solid var(--sage-soft);
}
.nav-links .nav-item-cv a:hover,
.nav-links .nav-item-cv a.nav-active {
  background: var(--sage-deep);
  border-color: var(--sage-deep);
  color: var(--cream);
}

/* ── Mobile toggle ── */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm, 6px);
  width: 36px;
  height: 36px;
  transition: background 0.2s;
}
.nav-toggle:hover { background: var(--sage-mist); }

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--sage-ink);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.2s ease;
  transform-origin: center;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ══════════════════════════════════════
   PORTFOLIO DROPDOWN
   ══════════════════════════════════════ */

/* Row: link + chevron button side by side */
.nav-item-row {
  display: flex;
  align-items: center;
}

/* Chevron toggle button */
.nav-dropdown-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px 4px 6px 2px;
  color: var(--muted);
  border-radius: var(--radius-sm, 6px);
  margin-left: -6px;
  transition: color 0.2s, background 0.2s;
}
.nav-dropdown-toggle:hover { color: var(--sage-deep); background: var(--sage-mist); }

.nav-dropdown-toggle svg {
  width: 12px; height: 12px;
  transition: transform 0.2s ease;
}

.dropdown-open .nav-dropdown-toggle svg {
  transform: rotate(180deg);
}

/* Dropdown panel */
.nav-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  list-style: none;
  margin: 0; padding: 8px;
  background: var(--cream);
  border: 1.5px solid var(--sage-soft);
  border-radius: var(--radius-lg, 14px);
  min-width: 290px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.09);
  z-index: 10;
  /* hidden by default */
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

/* Small caret pointing up */
.nav-dropdown::before {
  content: '';
  position: absolute;
  top: -7px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 12px; height: 12px;
  background: var(--cream);
  border-top: 1.5px solid var(--sage-soft);
  border-left: 1.5px solid var(--sage-soft);
}

/* Desktop: show on CSS hover.
   The ::after bridge fills the 8px gap between the nav item and the panel,
   so the mouse stays "inside" the li while moving toward the dropdown. */
@media (min-width: 641px) {
  .nav-item-dropdown::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    height: 12px; /* covers the gap + a little extra */
  }

  .nav-item-dropdown:hover .nav-dropdown {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
  }
}

/* Also show when toggled via the chevron button (desktop + mobile) */
.dropdown-open .nav-dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

/* Dropdown links — override the uppercase/spaced style from .nav-links a */
.nav-dropdown a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  border-radius: var(--radius-md, 10px);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.2px;
  text-transform: none;
  background: none;
  transition: background 0.15s, color 0.15s;
}

.nav-dropdown a:hover {
  background: var(--sage-mist);
  color: var(--sage-ink);
}

/* Small pill tag inside dropdown item */
.nav-dropdown-tag {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--sage-deep);
  background: var(--sage-mist);
  padding: 3px 8px;
  border-radius: var(--radius-pill, 999px);
  flex-shrink: 0;
  white-space: nowrap;
}

/* ══════════════════════════════════════
   RESPONSIVE — mobile
   ══════════════════════════════════════ */
@media (max-width: 640px) {
  #site-nav { padding: 0 20px; }

  .nav-toggle { display: flex; }

  .nav-links {
    display: none;
    position: absolute;
    top: 56px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--cream);
    border-bottom: 1px solid var(--sage-soft);
    padding: 8px 16px 16px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.07);
  }

  .nav-links.nav-open { display: flex; }

  /* Divider between top-level items */
  .nav-links > li { border-bottom: 1px solid var(--sage-mist); }
  .nav-links > li:last-child { border-bottom: none; }

  .nav-links a {
    padding: 13px 8px;
    font-size: 12px;
    border-radius: 0;
    background: none !important;
  }

  .nav-links .nav-item-cv a { border: none; color: var(--sage-deep); }
  .nav-links a.nav-active    { color: var(--sage-deep); }

  /* Portfolio row: link takes all available space */
  .nav-item-dropdown { border-bottom: none !important; }
  .nav-item-row { border-bottom: 1px solid var(--sage-mist); }

  .nav-dropdown-toggle {
    margin-left: auto;
    padding: 8px;
  }

  /* Dropdown panel: inline expand, no floating panel */
  .nav-dropdown {
    position: static;
    transform: none;
    opacity: 1;
    pointer-events: auto;
    border: none;
    border-radius: 0;
    box-shadow: none;
    background: transparent;
    padding: 0;
    min-width: 0;
    /* collapsed by default via max-height */
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }

  .nav-dropdown::before { display: none; }

  .dropdown-open .nav-dropdown {
    max-height: 400px;
  }

  .nav-dropdown a {
    padding: 12px 8px 12px 20px;
    font-size: 12px;
    border-radius: 0;
    color: var(--muted);
    border-bottom: 1px solid var(--sage-mist);
  }

  .nav-dropdown li:last-child a { border-bottom: none; }

  .nav-dropdown-tag { display: none; }
}