/* ============================================================
   JAMMU LOGISTICS — NAVBAR CSS (DriveU White & Orange Mega Menu)
   Clean white navbar, 6-card mega-menu dropdown, mobile drawer
   ============================================================ */

/* ---- Header wrapper ---- */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 9000;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 2px 14px -2px rgba(15, 23, 42, 0.05);
  transition: all var(--duration-base) var(--ease-out);
}

#site-header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.08);
}

/* ---- Nav Inner ---- */
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
  transition: height var(--duration-base) var(--ease-out);
}

#site-header.scrolled .nav-inner {
  height: 66px;
}

/* ---- Logo ---- */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo-img {
  height: 38px;
  width: auto;
  object-fit: contain;
  display: block;
  transition: transform var(--duration-base) var(--ease-out);
}

.nav-logo:hover .nav-logo-img {
  transform: scale(1.04);
}

.nav-logo-icon svg {
  width: 22px;
  height: 22px;
  stroke: white;
}

.nav-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.nav-logo-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-navy);
}

.nav-logo-tagline {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* ---- Desktop Navigation Links ---- */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  list-style: none;
}

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

.nav-menu > li > a,
.nav-menu > li > span {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 0.55rem 0.95rem;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-navy-light);
  transition: all var(--duration-fast);
  cursor: pointer;
  white-space: nowrap;
}

.nav-menu > li > a:hover,
.nav-menu > li > span:hover {
  color: var(--color-primary);
  background: var(--color-primary-soft);
}

.nav-chevron {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  transition: transform var(--duration-fast);
}

.nav-menu > li:hover .nav-chevron {
  transform: rotate(180deg);
}

/* ========================================================
   DRIVEU-STYLE MEGA-MENU DROPDOWN
   ======================================================== */
.nav-menu > li.has-dropdown {
  padding-bottom: 8px; /* Extends hover area */
}

.nav-mega-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  width: 780px;
  max-width: 92vw;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: 0 20px 50px -10px rgba(15, 23, 42, 0.16),
              0 0 0 1px rgba(15, 23, 42, 0.06);
  border: 1px solid var(--color-border);
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease-out,
              transform 180ms ease-out;
  z-index: 1000;
}

/* Invisible Hover Bridge - prevents menu disappearing when moving mouse down */
.nav-mega-dropdown::before {
  content: '';
  position: absolute;
  top: -20px;
  left: 0;
  right: 0;
  height: 20px;
  background: transparent;
  display: block;
}

/* Show on Hover, Focus-Within, or Active Click */
.nav-menu > li.has-dropdown:hover .nav-mega-dropdown,
.nav-menu > li.has-dropdown:focus-within .nav-mega-dropdown,
.nav-menu > li.has-dropdown.is-active .nav-mega-dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.nav-menu > li.has-dropdown.is-active .nav-chevron,
.nav-menu > li.has-dropdown:hover .nav-chevron {
  transform: rotate(180deg);
}

/* 2x3 Grid inside Mega Menu */
.mega-menu-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.mega-menu-item {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 0.85rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--duration-fast);
  background: transparent;
}

.mega-menu-item:hover {
  background: var(--color-surface);
  transform: translateY(-2px);
}

.mega-menu-item:hover .mega-item-title {
  color: var(--color-primary);
}

.mega-item-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: #ECFDF5;           /* Soft clean green/mint background (DriveU style) */
  color: #059669;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--duration-fast);
}

.mega-menu-item:nth-child(2) .mega-item-icon {
  background: #EFF6FF;           /* Soft blue */
  color: #2563EB;
}

.mega-menu-item:nth-child(3) .mega-item-icon {
  background: #FFF7ED;           /* Soft orange */
  color: #EA580C;
}

.mega-menu-item:nth-child(4) .mega-item-icon {
  background: #FDF2F8;           /* Soft pink */
  color: #DB2777;
}

.mega-menu-item:nth-child(5) .mega-item-icon {
  background: #F5F3FF;           /* Soft purple */
  color: #7C3AED;
}

.mega-menu-item:nth-child(6) .mega-item-icon {
  background: #FEF3C7;           /* Soft amber */
  color: #D97706;
}

.mega-item-icon svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
}

.mega-item-text {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.mega-item-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-navy);
  transition: color var(--duration-fast);
}

.mega-item-desc {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  line-height: 1.35;
}

/* ---- Nav CTA Group ---- */
.nav-cta-group {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.nav-phone {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-navy);
  transition: color var(--duration-fast);
  text-decoration: none;
}

.nav-phone:hover {
  color: var(--color-primary);
}

.nav-phone svg {
  width: 16px;
  height: 16px;
  fill: var(--color-primary);
}

.nav-quote-btn {
  background: var(--color-primary);
  color: white !important;
  font-weight: 700;
  font-size: var(--text-xs);
  padding: 0.55rem 1.25rem;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  box-shadow: 0 4px 14px rgba(255, 107, 0, 0.32);
  transition: all var(--duration-base) var(--ease-out);
  white-space: nowrap;
  text-decoration: none;
}

.nav-quote-btn:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(255, 107, 0, 0.45);
}

/* ---- Hamburger Icon ---- */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  gap: 5px;
  padding: 0;
  cursor: pointer;
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: background var(--duration-fast);
}

.nav-hamburger:hover {
  background: var(--color-surface-alt);
}

.nav-hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-navy);
  border-radius: 2px;
  transition: transform var(--duration-base) var(--ease-out),
              opacity var(--duration-fast);
  transform-origin: center;
}

.nav-hamburger.is-active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-hamburger.is-active span:nth-child(2) {
  opacity: 0;
}
.nav-hamburger.is-active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---- Mobile Menu Overlay ---- */
.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 8900;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-slow) var(--ease-out);
}

.mobile-overlay.is-active {
  opacity: 1;
  pointer-events: auto;
}

/* ---- Mobile Drawer ---- */
.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(320px, 86vw);
  background: var(--color-white);
  z-index: 9100;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--duration-slow) cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  box-shadow: -8px 0 30px rgba(0, 0, 0, 0.15);
}

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

.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.15rem 1.25rem;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background: var(--color-white);
  z-index: 1;
}

.mobile-menu-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface-alt);
  transition: background var(--duration-fast);
}

.mobile-menu-close:hover {
  background: var(--color-border);
}

.mobile-menu-close svg {
  width: 18px;
  height: 18px;
  stroke: var(--color-navy);
}

.mobile-nav {
  padding: 1rem 1.25rem;
  flex: 1;
}

.mobile-nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--color-surface-alt);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-navy);
  transition: color var(--duration-fast), transform var(--duration-fast);
}

.mobile-nav a:hover {
  color: var(--color-primary);
  transform: translateX(4px);
}

.mobile-menu-footer {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}

/* ---- Responsive Breakpoints ---- */
@media (max-width: 900px) {
  .nav-menu {
    display: none;
  }
  .nav-phone.hide-mobile {
    display: none;
  }
  .nav-hamburger {
    display: flex;
  }
  .nav-inner {
    height: 64px;
  }
}

@media (max-width: 480px) {
  .nav-quote-btn {
    display: none;
  }
  .nav-inner {
    padding-inline: 1rem;
  }
}

@media (min-width: 901px) {
  .mobile-menu,
  .mobile-overlay,
  .nav-hamburger {
    display: none !important;
  }
}