/* ==========================================================================
   Header Component & Navigation
   ========================================================================== */

.site-header {
  width: 100%;
  padding: var(--space-md) 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--brand-bg);
  border-bottom: 1px solid rgba(7, 25, 67, 0.06);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
}

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

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

/* Logo & Brand Name */
.brand-group {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: var(--brand-dark-blue);
}

.brand-logo-svg,
.brand-logo-canvas {
  width: 33px;
  height: 11px;
  display: block;
  flex-shrink: 0;
  transition: transform var(--transition-normal);
}

.brand-group:hover .brand-logo-svg,
.brand-group:hover .brand-logo-canvas {
  transform: scale(1.05);
}

.brand-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--brand-dark-blue);
  white-space: nowrap;
}

/* Desktop Nav Links */
.desktop-nav {
  display: none;
  align-items: center;
  gap: var(--space-xl);
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 500;
  color: var(--brand-dark-blue);
  transition: color var(--transition-fast);
  position: relative;
  padding: var(--space-xxs) 0;
}

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

/* Mobile Hamburger Button */
.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--brand-dark-blue);
  transition: background-color var(--transition-fast);
}

.mobile-menu-btn:hover {
  background-color: var(--color-grey-100);
}

.mobile-menu-btn svg {
  width: 24px;
  height: 24px;
}

/* Mobile Nav Drawer & Backdrop */
.mobile-nav-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(43, 64, 147, 0.2);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 200;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.mobile-nav-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--color-white);
  box-shadow: none;
  z-index: 210;
  transform: translateY(-100%);
  visibility: hidden;
  pointer-events: none;
  transition: transform var(--transition-normal), visibility var(--transition-normal);
  padding: var(--space-md) var(--space-md) var(--space-xl);
}

.mobile-nav-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-drawer.open {
  transform: translateY(0);
  visibility: visible;
  pointer-events: auto;
  box-shadow: 0 16px 32px rgba(7, 25, 67, 0.12);
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--space-md);
  border-bottom: none;
}

.drawer-menu-list {
  display: flex;
  flex-direction: column;
  margin-top: var(--space-md);
}

.drawer-link {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--brand-dark-blue);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-grey-100);
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.drawer-link:hover {
  color: var(--brand-primary);
  padding-left: var(--space-xs);
}

/* Responsive adjustments for Desktop */
@media (min-width: 900px) {
  body:not(.mobile-preview-active) .desktop-nav {
    display: flex;
  }
  body:not(.mobile-preview-active) .mobile-menu-btn {
    display: none;
  }
}

/* In Mobile Preview Mode inside Desktop */
body.mobile-preview-active .desktop-nav {
  display: none !important;
}

body.mobile-preview-active .mobile-menu-btn {
  display: flex !important;
}

body.mobile-preview-active .mobile-nav-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 100%;
  height: 100%;
  transform: none;
  border-radius: 20px;
}

body.mobile-preview-active .mobile-nav-drawer {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  max-width: 100%;
  transform: translateY(-100%);
  border-top-left-radius: 20px;
  border-top-right-radius: 20px;
}

body.mobile-preview-active .mobile-nav-drawer.open {
  transform: translateY(0);
}