/*
 * Modern Header Styling
 * Implements glassmorphism effects, modern layout, and responsive design
 * Requirements: 1.1, 2.1, 2.2, 2.3, 3.2
 */

/* ===== MODERN HEADER CONTAINER ===== */
.modern-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  width: 100%;
  background: rgba(255, 255, 255, 0.95) !important;
  backdrop-filter: var(--glass-backdrop-filter);
  -webkit-backdrop-filter: var(--glass-backdrop-filter);
  border-bottom: 1px solid rgba(229, 231, 235, 0.8);
  transition: all var(--duration-normal) var(--ease-out);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  opacity: 1 !important;
  transform: none !important;
}

.modern-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-primary-gradient);
  opacity: 0.03;
  pointer-events: none;
}

/* Header Container */
.modern-header__container {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

/* ===== LOGO SECTION ===== */
.modern-header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  transition: transform var(--duration-normal) var(--ease-out);
}

.modern-header__logo:hover {
  transform: translateY(-2px);
}

.modern-header__logo-image {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--duration-normal) var(--ease-out);
  background: var(--color-white);
  padding: var(--space-2);
}

.modern-header__logo:hover .modern-header__logo-image {
  box-shadow: var(--shadow-lg);
  transform: scale(1.05);
}

.modern-header__logo-text {
  font-family: var(--font-family-secondary);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-gray-800);
  display: none; /* Hidden by default, shown on larger screens */
}

/* ===== NAVIGATION SECTION ===== */
.modern-header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.modern-header__nav-item {
  position: relative;
}

.modern-header__nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--color-gray-700) !important;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  background: rgba(255, 255, 255, 0.8) !important;
  border: 2px solid rgba(108, 92, 231, 0.2);
  transition: all var(--duration-normal) var(--ease-out);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  opacity: 1 !important;
  transform: none !important;
}

.modern-header__nav-link:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(108, 92, 231, 0.25);
  color: var(--color-white);
}

.modern-header__nav-link:active {
  transform: translateY(0);
}

.modern-header__nav-icon {
  font-size: var(--font-size-base);
  opacity: 0.9;
  transition: all var(--duration-fast) var(--ease-out);
}

.modern-header__nav-link:hover .modern-header__nav-icon {
  opacity: 1;
  transform: scale(1.1);
}

.modern-header__nav-text {
  white-space: nowrap;
  display: none; /* Hidden on mobile, shown on larger screens */
}

/* ===== MOBILE MENU TOGGLE ===== */
.modern-header__mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: var(--space-2);
  background: rgba(255, 255, 255, 0.8);
  border: 2px solid rgba(108, 92, 231, 0.2);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.modern-header__mobile-toggle:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(108, 92, 231, 0.25);
}

.modern-header__mobile-toggle:hover .modern-header__mobile-toggle-line {
  background: var(--color-white);
}

.modern-header__mobile-toggle-line {
  width: 20px;
  height: 2px;
  background: var(--color-gray-700);
  border-radius: var(--radius-full);
  transition: all var(--duration-normal) var(--ease-out);
}

/* Mobile menu animation */
.modern-header__mobile-toggle.active .modern-header__mobile-toggle-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.modern-header__mobile-toggle.active .modern-header__mobile-toggle-line:nth-child(2) {
  opacity: 0;
}

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

/* ===== MOBILE MENU ===== */
.modern-header__mobile-menu {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-backdrop-filter);
  -webkit-backdrop-filter: var(--glass-backdrop-filter);
  border-bottom: 1px solid var(--glass-border);
  padding: var(--space-4);
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-normal) var(--ease-out);
}

.modern-header__mobile-menu.active {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.modern-header__mobile-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.modern-header__mobile-nav .modern-header__nav-link {
  justify-content: center;
  padding: var(--space-4);
  background: rgba(255, 255, 255, 0.9);
  border: 2px solid rgba(108, 92, 231, 0.2);
  color: var(--color-gray-700);
  font-weight: var(--font-weight-semibold);
}

.modern-header__mobile-nav .modern-header__nav-text {
  display: block;
}



/* ===== RESPONSIVE DESIGN ===== */

/* Small mobile devices */
@media (max-width: 480px) {
  .modern-header__container {
    padding: var(--space-3) var(--space-4);
    gap: var(--space-4);
  }
  
  .modern-header__logo-image {
    width: 40px;
    height: 40px;
  }
  
  .modern-header__mobile-menu {
    padding: var(--space-3);
  }
  
  .modern-header__nav-link {
    padding: var(--space-3);
    font-size: var(--font-size-xs);
  }
}

/* Mobile devices */
@media (max-width: 767px) {
  .modern-header__mobile-toggle {
    display: flex;
  }
  
  .modern-header__nav {
    display: none;
  }
  
  .modern-header.mobile-menu-open .modern-header__nav {
    display: flex;
  }
  
  .modern-header__container {
    padding: var(--space-4) var(--space-6);
  }
}

/* Tablet and up */
@media (min-width: 768px) {
  .modern-header__container {
    padding: var(--space-5) var(--space-8);
  }
  
  .modern-header__logo-image {
    width: 56px;
    height: 56px;
  }
  
  .modern-header__nav-text {
    display: block;
  }
  
  .modern-header__nav {
    gap: var(--space-3);
  }
  
  .modern-header__mobile-toggle {
    display: none;
  }
  
  .modern-header__nav {
    display: flex;
  }
}

/* Desktop and up */
@media (min-width: 1024px) {
  .modern-header__container {
    padding: var(--space-6) var(--space-12);
  }
  
  .modern-header__logo-text {
    display: block;
  }
  
  .modern-header__nav {
    gap: var(--space-4);
  }
  
  .modern-header__nav-link {
    padding: var(--space-4) var(--space-6);
  }
}

/* Large desktop */
@media (min-width: 1280px) {
  .modern-header__container {
    max-width: var(--container-xl);
  }
}

/* Ultra-wide screens */
@media (min-width: 1536px) {
  .modern-header__container {
    max-width: var(--container-2xl);
  }
}

/* ===== ACCESSIBILITY ===== */

/* Focus styles */
.modern-header__nav-link:focus,
.modern-header__logo:focus,
.modern-header__mobile-toggle:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .modern-header,
  .modern-header__logo,
  .modern-header__logo-image,
  .modern-header__nav-link,
  .modern-header__mobile-toggle,
  .modern-header__mobile-toggle-line,
  .modern-header__mobile-menu {
    transition: none;
  }
  
  .modern-header__logo:hover {
    transform: none;
  }
  
  .modern-header__nav-link:hover {
    transform: none;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .modern-header {
    background: var(--color-bg-primary);
    border-bottom: 2px solid var(--color-text-primary);
  }
  
  .modern-header__nav-link {
    background: var(--color-bg-secondary);
    border: 2px solid var(--color-text-secondary);
  }
  
  .modern-header__nav-link:hover {
    border-color: var(--color-primary);
    background: var(--color-bg-primary);
  }
}

/* ===== DARK THEME ADJUSTMENTS ===== */
[data-theme="dark"] .modern-header__logo-image {
  background: var(--color-dark-surface);
}

[data-theme="dark"] .modern-header::before {
  opacity: 0.05;
}

/* ===== LAYOUT INTEGRATION ===== */
/* Override default EC-CUBE header styles */
.ec-layoutRole__header {
  padding: 0;
  background: none;
  border: none;
  box-shadow: none;
}

/* Ensure proper z-index stacking */
.modern-header {
  position: relative;
  z-index: var(--z-sticky);
}

/* Integration with existing EC-CUBE layout */
.ec-layoutRole {
  position: relative;
}

/* Ensure content doesn't overlap with sticky header */
.ec-layoutRole__contents {
  padding-top: var(--space-4);
}

/* ===== ANIMATION KEYFRAMES ===== */
@keyframes headerSlideIn {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.modern-header {
  animation: headerSlideIn var(--duration-slow) var(--ease-out);
}

/* ===== FALLBACK STYLES ===== */
/* Fallback for browsers that don't support backdrop-filter */
@supports not (backdrop-filter: blur(20px)) {
  .modern-header {
    background: rgba(255, 255, 255, 0.95);
  }
  
  [data-theme="dark"] .modern-header {
    background: rgba(26, 26, 26, 0.95);
  }
  
  .modern-header__nav-link {
    background: rgba(255, 255, 255, 0.8);
  }
  
  [data-theme="dark"] .modern-header__nav-link {
    background: rgba(45, 45, 45, 0.8);
  }
}