/* ================================================
   OCPL Logistics - Header / Navigation
   ================================================ */

.site-header {
  position: absolute;
  top: 20px;
  left: 60px;
  right: 60px;
  z-index: 1000;
  background: var(--color-neutral-8);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-header);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  height: 76px;
  transition: top var(--transition-normal), left var(--transition-normal), right var(--transition-normal), border-radius var(--transition-normal);
}

.site-header.scrolled {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  border-radius: 0;
  box-shadow: 0 2px 24px rgba(0, 0, 0, 0.15);
  padding: 0 3rem;
}

/* ── Logo ── */
.header-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  width: 155px;
}

.header-logo img {
  width: 100%;
  height: auto;
  max-height: 52px;
  object-fit: contain;
}

/* ── Nav ── */
.header-nav {
  display: flex;
  align-items: center;
  gap: 0;
}

.nav-item {
  padding: 25px 25px;
  font-family: var(--font-body);
  font-size: var(--fs-body-sm);
  font-weight: var(--fw-regular);
  color: var(--color-neutral-1);
  line-height: var(--lh-body);
  white-space: nowrap;
  position: relative;
  cursor: pointer;
  transition: color var(--transition-fast);
  text-decoration: none;
}

.nav-item::after {
  content: '';
  position: absolute;
  bottom: 18px;
  left: 11px;
  right: 11px;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-normal);
}

.nav-item:hover,
.nav-item.active {
  color: var(--color-primary);
}

.nav-item:hover::after,
.nav-item.active::after {
  transform: scaleX(1);
}

/* ── Dropdown Nav ── */
.nav-item-dropdown {
  position: relative;
  display: flex;
  align-items: center;
}

.dropdown-menu-list {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--color-neutral-8);
  min-width: 240px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  border-radius: var(--radius-sm);
  z-index: 1001;
  padding: 10px 0;
}

.nav-item-dropdown:hover .dropdown-menu-list {
  display: block;
  animation: fadeIn 0.2s ease-in-out;
}

.dropdown-menu-list a.dropdown-item {
  color: var(--color-neutral-1);
  padding: 12px 20px;
  text-decoration: none;
  display: block;
  font-family: var(--font-body);
  font-size: var(--fs-body-sm);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.dropdown-menu-list a.dropdown-item:hover {
  background-color: var(--color-neutral-6);
  color: var(--color-primary);
}

/* ── CTA Button Area ── */
.header-cta {
  display: flex;
  align-items: center;
  padding-left: 8px;
}

/* ── Hamburger (mobile) ── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-neutral-1);
  border-radius: 2px;
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Mobile Nav Drawer ── */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: var(--color-neutral-8);
  z-index: 999;
  padding: 100px 40px 40px;
  flex-direction: column;
  gap: 8px;
  transform: translateX(-100%);
  transition: transform var(--transition-slow);
}

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

.mobile-nav__item {
  font-family: var(--font-body);
  font-size: 20px;
  font-weight: var(--fw-medium);
  color: var(--color-neutral-1);
  padding: 14px 0;
  border-bottom: 1px solid var(--color-neutral-7);
  transition: color var(--transition-fast);
  text-decoration: none;
}

.mobile-nav__item:hover,
.mobile-nav__item.active {
  color: var(--color-primary);
}

.mobile-nav__cta {
  margin-top: 24px;
}

.mobile-nav__close {
  position: absolute;
  top: 24px;
  right: 24px;
  font-size: 28px;
  cursor: pointer;
  color: var(--color-neutral-2);
  background: none;
  border: none;
  line-height: 1;
}