/* ================================================================
   HYL Logistics - Header CSS
   Contains: Sticky Header, Navigation, Mobile Menu
   ================================================================ */

/* Header Wrapper */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: var(--color-bg-white);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  z-index: 1000;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.site-header.header-hidden {
  transform: translateY(-100%);
}

.site-header .container {
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Logo */
.site-logo img {
  height: 50px;
  width: auto;
}

/* Desktop Navigation */
.main-nav {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.nav-link {
  font-size: 20px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-dark);
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  transition: var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-accent);
  background: rgba(255, 107, 53, 0.1);
}

.nav-link.active {
  color: var(--color-accent);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.menu-toggle span {
  display: block;
  width: 25px;
  height: 3px;
  background: var(--color-primary-dark);
  transition: var(--transition-fast);
  border-radius: 2px;
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* Spacer for fixed header */
.header-spacer {
  height: var(--header-height);
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: var(--header-height);
    right: -100%;
    width: 70%;
    max-width: 300px;
    height: calc(100vh - var(--header-height));
    background: var(--color-bg-white);
    flex-direction: column;
    padding: var(--spacing-sm);
    box-shadow: -4px 0 12px rgba(0, 0, 0, 0.1);
    transition: right var(--transition-normal);
    align-items: stretch;
  }

  .main-nav.active {
    right: 0;
  }

  .nav-link {
    font-size: 18px;
    padding: 1rem;
    border-bottom: 1px solid var(--color-border);
  }

  .nav-link:last-child {
    border-bottom: none;
  }
}