/* ============================================================
   Liyaas – nav.css
   Flux/Fuel theme navigation
   ============================================================ */

/* ── Main Header ────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: var(--ann-h); left: 0; right: 0;
  z-index: 500;
  height: var(--nav-h);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-bg-2);
  transition: border-color var(--t-base), box-shadow var(--t-base);
}
.site-header.scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
}

/* ── Nav Inner ──────────────────────────────────────────────── */
.nav-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 0;
  position: relative;
}

/* ── Logo ───────────────────────────────────────────────────── */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
  margin-right: 32px;
}
.nav-logo-text {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-text);
  line-height: 1;
  text-transform: uppercase;
}
.nav-logo-text .logo-accent {
  color: var(--color-text);
  position: relative;
  display: inline-block;
}
.nav-logo-text .logo-accent::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-accent);
}

/* ── Primary nav links ──────────────────────────────────────── */
.nav-links {
  display: flex;
  align-items: center;
  gap: 0;
  flex: 1;
  height: 100%;
}

.nav-item {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 0 15px;
  height: 100%;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--t-fast);
  white-space: nowrap;
  position: relative;
}

/* Underline hover animation */
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 14px;
  left: 15px;
  right: 15px;
  height: 1.5px;
  background: var(--color-text);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--t-base);
}
.nav-link:hover::after,
.nav-item:hover .nav-link::after {
  transform: scaleX(1);
}

.nav-link .nav-arrow {
  width: 12px; height: 12px;
  flex-shrink: 0;
  transition: transform var(--t-base);
}
.nav-item:hover .nav-arrow { transform: rotate(180deg); }

/* ── Mega Menu ──────────────────────────────────────────────── */
.mega-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  min-width: 560px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 0 0 var(--radius-card) var(--radius-card);
  padding: 24px 28px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t-base), transform var(--t-base);
  z-index: 600;
  box-shadow: var(--shadow-lg);
}
.nav-item:hover .mega-menu {
  opacity: 1;
  pointer-events: all;
  transform: translateX(-50%) translateY(0);
}

.mega-menu__title {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--c-gray);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-bg-2);
}

.mega-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
}

.mega-series-title {
  grid-column: 1 / -1;
  font-family: var(--font-heading);
  font-size: 0.688rem;
  font-weight: 700;
  color: var(--c-gray);
  padding: 10px 0 5px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.mega-series-title:first-child { padding-top: 0; }

.mega-item {
  display: block;
  padding: 7px 12px;
  border-radius: var(--r-sm);
  font-family: var(--font-body);
  font-size: 0.838rem;
  font-weight: 400;
  color: var(--color-text);
  text-decoration: none;
  transition: background var(--t-fast);
  white-space: nowrap;
}
.mega-item:hover {
  background: var(--color-bg-2);
}

.mega-footer {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--color-bg-2);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.mega-footer a {
  font-family: var(--font-body);
  font-size: 0.838rem;
  font-weight: 600;
  color: var(--color-text);
}
.mega-footer a:hover { text-decoration: underline; }

/* ── Nav right (icons) ──────────────────────────────────────── */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
}

.nav-icon-btn {
  position: relative;
  width: 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-btn);
  color: var(--color-text);
  text-decoration: none;
  transition: background var(--t-fast);
  cursor: pointer;
  border: none;
  background: transparent;
}
.nav-icon-btn:hover { background: var(--color-bg-2); }
.nav-icon-btn svg { width: 22px; height: 22px; }

/* Cart/wishlist count badge */
.nav-icon-btn .count-badge {
  position: absolute;
  top: 5px; right: 5px;
  min-width: 16px; height: 16px;
  background: var(--color-badge);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.625rem;
  font-weight: 700;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  line-height: 1;
  padding: 0 3px;
  border: 2px solid var(--color-bg);
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.nav-icon-btn .count-badge.bump { animation: bounceIn 0.4s ease; }

/* ── Hamburger ──────────────────────────────────────────────── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  width: 40px; height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-sm);
  border: none;
  background: transparent;
  padding: 0;
  transition: background var(--t-fast);
}
.hamburger:hover { background: var(--color-bg-2); }
.hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--t-base), opacity var(--t-base), width var(--t-base);
  transform-origin: center;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; width: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Mobile Drawer ──────────────────────────────────────────── */
.mobile-drawer {
  position: fixed;
  inset: 0;
  z-index: 600;
  background: var(--color-bg);
  transform: translateX(-100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.mobile-drawer.open { transform: translateX(0); }

.drawer-header {
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  border-bottom: 1px solid var(--color-bg-2);
  position: sticky; top: 0;
  background: var(--color-bg);
  z-index: 1;
}

.drawer-body { padding: 16px 20px; flex: 1; }

.drawer-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 0;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-bg-2);
  text-decoration: none;
  cursor: pointer;
  transition: color var(--t-fast);
}
.drawer-nav-link:hover { color: var(--c-gray-dark); }
.drawer-nav-link svg { color: var(--c-gray); }
.drawer-arrow { transition: transform var(--t-base); }

/* Models section in drawer */
#drawerModels { padding-bottom: 8px; }

.drawer-models {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  padding: 8px 0 12px;
}
.drawer-model-link {
  display: block;
  padding: 8px 12px;
  font-family: var(--font-body);
  font-size: 0.838rem;
  font-weight: 400;
  color: var(--color-text);
  background: var(--color-bg-2);
  border-radius: var(--r-sm);
  text-decoration: none;
  transition: background var(--t-fast);
}
.drawer-model-link:hover { background: var(--color-border); }

.drawer-series-label {
  font-family: var(--font-heading);
  font-size: 0.688rem;
  font-weight: 700;
  color: var(--c-gray);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 10px 0 6px;
}

.drawer-footer {
  padding: 20px;
  border-top: 1px solid var(--color-bg-2);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 990px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .nav-logo  { margin-right: auto; }
}