/* ============================================================
   SRI GARUDA DECORATORS — HEADER CSS
   Navbar, mobile hamburger, services dropdown, scroll shrink
   ============================================================ */

/* ── Main Navbar ── */
.sgd-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-sticky);
  background: var(--color-bg-dark);
  border-bottom: 1px solid var(--color-border-dark);
  transition: padding var(--transition-base),
    background var(--transition-base),
    box-shadow var(--transition-base);
}

.sgd-header.scrolled {
  background: rgba(59, 1, 11, 0.97);
  box-shadow: var(--shadow-nav);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: height var(--transition-base);
}

.sgd-header.scrolled .nav-container {
  height: 64px;
}

/* ── Logo ── */
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
  text-decoration: none;
}

.nav-logo img {
  height: 52px;
  width: auto;
  object-fit: contain;
  transition: height var(--transition-base);
}

.sgd-header.scrolled .nav-logo img {
  height: 42px;
}

.nav-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.nav-logo-text .brand-sri {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.8rem;
  color: var(--sand-gold);
  letter-spacing: 0.08em;
}

.nav-logo-text .brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--champagne-beige);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ── Navigation Links ── */
.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

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

.nav-item {
  position: relative;
}

.nav-link {
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--champagne-beige);
  padding: var(--space-sm) var(--space-xs);
  position: relative;
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--sand-gold);
  transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
  color: var(--sand-gold);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* ── Services Dropdown ── */
.nav-item.has-dropdown .nav-link .dropdown-arrow {
  width: 10px;
  height: 10px;

  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  display: inline-block;
  transition: transform var(--transition-fast);
  flex-shrink: 0;
  margin-left: 2px;
}

.nav-item.has-dropdown:hover .dropdown-arrow,
.nav-item.has-dropdown.open .dropdown-arrow {
  transform: rotate(-135deg) translateY(-2px);
}

.nav-dropdown {
  position: absolute;
  top: calc(100% + 16px);
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  min-width: 240px;
  background: var(--dark-maroon);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast),
    transform var(--transition-fast);
  z-index: var(--z-dropdown);
  overflow: hidden;
}

.nav-item.has-dropdown:hover .nav-dropdown,
.nav-item.has-dropdown.open .nav-dropdown {
  opacity: 1;

  pointer-events: all;
  transform: translateX(-50%) translateY(0);
}

/* Dropdown arrow connector */
.nav-dropdown::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 10px;
  height: 10px;
  background: var(--dark-maroon);
  border-top: 1px solid var(--color-border-dark);
  border-left: 1px solid var(--color-border-dark);
}

.dropdown-item {
  display: block;
  padding: 0.75rem 1.25rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--champagne-beige);
  text-transform: uppercase;
  border-bottom: 1px solid var(--color-border-dark);
  transition: background var(--transition-fast),
    color var(--transition-fast),
    padding-left var(--transition-fast);
  position: relative;
}

.dropdown-item:last-child {
  border-bottom: none;
}

.dropdown-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 2px;
  background: var(--sand-gold);
  transform: scaleY(0);
  transition: transform var(--transition-fast);
}

.dropdown-item:hover {
  background: rgba(242, 217, 160, 0.08);
  color: var(--sand-gold);
  padding-left: 1.6rem;
}

.dropdown-item:hover::before {
  transform: scaleY(1);
}

/* ── Get a Quote CTA Button ── */
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.55rem 1.4rem;
  background: var(--burgundy);
  color: var(--champagne-beige);
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(242, 217, 160, 0.25);
  transition: background var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
  white-space: nowrap;
  flex-shrink: 0;
}

.nav-cta:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(117, 22, 45, 0.45);
  color: var(--sand-gold);
}

.nav-cta:active {
  transform: translateY(0);
}

/* ── Hamburger Menu ── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  gap: 5px;
  cursor: pointer;
  flex-shrink: 0;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--champagne-beige);
  border-radius: 2px;
  transition: transform var(--transition-base),
    opacity var(--transition-fast),
    width var(--transition-base);
  transform-origin: center;
}

.nav-hamburger.open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
  width: 0;
}

.nav-hamburger.open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ── Mobile Menu Overlay ── */
.nav-mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(59, 1, 11, 0.6);
  z-index: calc(var(--z-sticky) - 1);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.nav-mobile-overlay.active {
  opacity: 1;
}

/* ── Mobile Menu Panel ── */
.nav-mobile {
  position: fixed;
  top: 0;
  right: 0;
  width: min(320px, 85vw);
  height: 100dvh;
  background: var(--deep-wine);
  border-left: 1px solid var(--color-border-dark);
  z-index: var(--z-sticky);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  padding: var(--space-xl) var(--space-lg);
  padding-top: 100px;
}

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

.nav-mobile-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.nav-mobile-link {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--champagne-beige);
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--color-border-dark);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.nav-mobile-link:hover {
  color: var(--sand-gold);
  padding-left: var(--space-sm);
}

/* Mobile dropdown */
.nav-mobile-sub {
  display: none;
  flex-direction: column;
  padding-left: var(--space-md);
  padding-top: var(--space-sm);
  gap: var(--space-xs);
}

.nav-mobile-sub.open {
  display: flex;
}

.nav-mobile-sub-link {
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(242, 217, 160, 0.08);
  transition: color var(--transition-fast);
}

.nav-mobile-sub-link:hover {
  color: var(--sand-gold);
}

.mobile-dropdown-arrow {
  width: 8px;
  height: 8px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  display: inline-block;
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.nav-mobile-item.open .mobile-dropdown-arrow {
  transform: rotate(-135deg);
}

.nav-mobile-cta {
  margin-top: var(--space-xl);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.5rem;
  background: var(--burgundy);
  color: var(--champagne-beige);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(242, 217, 160, 0.2);
  transition: background var(--transition-fast);
}

.nav-mobile-cta:hover {
  background: var(--color-accent-hover);
  color: var(--sand-gold);
}

/* Gold divider line in mobile menu */
.nav-mobile-divider {
  height: 1px;
  background: linear-gradient(to right, transparent, var(--sand-gold), transparent);
  margin: var(--space-lg) 0;
  opacity: 0.3;
}

/* ── Responsive Breakpoints ── */
@media (max-width: 1024px) {
  .nav-links {
    gap: var(--space-md);
  }
}

@media (max-width: 860px) {
  .nav-menu {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  .nav-mobile-overlay {
    display: block;
  }
}

@media (max-width: 480px) {
  .nav-container {
    padding: 0 var(--space-md);
    height: 68px;
  }

  .nav-logo img {
    height: 44px;
  }

  .nav-logo-text .brand-name {
    font-size: 1rem;
  }
}