/**
 * Modern Header CSS
 * Professional, responsive header with dark mode support
 *
 * @package Trippy's Food Corporation ERP
 * @version 2.0
 */

/* ============================================
   CSS VARIABLES
   ============================================ */
:root {
  /* Header Colors - Light Mode */
  --header-bg-light: #ffffff;
  --header-border-light: #e5e7eb;
  --header-text-light: #1f2937;
  --header-text-secondary-light: #6b7280;
  --header-hover-light: #f9fafb;
  --header-accent: #e11d48;
  --header-accent-hover: #be185d;

  /* Header Colors - Dark Mode */
  --header-bg-dark: #1e293b;
  --header-border-dark: #334155;
  --header-text-dark: #f1f5f9;
  --header-text-secondary-dark: #94a3b8;
  --header-hover-dark: #334155;

  /* Shadows and Effects */
  --header-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --header-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);

  /* Layout */
  --header-height: 80px;
  --header-z-index: 50;
}

/* ============================================
   HEADER CONTAINER
   ============================================ */
.header-container {
  position: fixed;
  top: 0;
  right: 0;
  height: var(--header-height);
  background: var(--header-bg-light);
  border-bottom: 1px solid var(--header-border-light);
  box-shadow: var(--header-shadow);
  z-index: var(--header-z-index);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark mode header */
.dark .header-container,
[data-theme="dark"] .header-container {
  background: var(--header-bg-dark);
  border-bottom-color: var(--header-border-dark);
}

/* ============================================
   HEADER SECTIONS
   ============================================ */
.header-left,
.header-center,
.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.header-left {
  flex: 0 0 auto;
}

.header-center {
  flex: 1 1 auto;
  justify-content: center;
  gap: 0.75rem;
}

.header-right {
  flex: 0 0 auto;
}

/* ============================================
   HAMBURGER MENU BUTTON
   ============================================ */
.hamburger-button {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 0.5rem;
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.hamburger-button span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--header-text-light);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.dark .hamburger-button span,
[data-theme="dark"] .hamburger-button span {
  background: var(--header-text-dark);
}

.hamburger-button:hover span {
  background: var(--header-accent);
}

/* Show hamburger on mobile */
@media (max-width: 767px) {
  .hamburger-button {
    display: flex;
  }
}

/* ============================================
   LOGO AND COMPANY NAME
   ============================================ */
.header-logo-section {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-circle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: white;
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(225, 29, 72, 0.15);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.logo-circle:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(225, 29, 72, 0.25);
}

.logo-image {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.company-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--header-accent);
  letter-spacing: -0.025em;
  white-space: nowrap;
  background: linear-gradient(135deg, var(--header-accent) 0%, var(--header-accent-hover) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.dark .company-name,
[data-theme="dark"] .company-name {
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Hide company name on very small screens */
@media (max-width: 480px) {
  .company-name {
    display: none;
  }
}

/* ============================================
   LANGUAGE SELECTOR
   ============================================ */
.language-selector {
  position: relative;
}

.language-button {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  background: white;
  border: 1px solid var(--header-border-light);
  border-radius: 0.5rem;
  color: var(--header-text-light);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.language-button:hover {
  background: var(--header-hover-light);
  border-color: var(--header-accent);
  color: var(--header-accent);
}

.dark .language-button,
[data-theme="dark"] .language-button {
  background: var(--header-bg-dark);
  border-color: var(--header-border-dark);
  color: var(--header-text-dark);
}

.dark .language-button:hover,
[data-theme="dark"] .language-button:hover {
  background: var(--header-hover-dark);
  border-color: var(--header-accent);
}

.language-button i.fa-globe {
  color: var(--header-accent);
}

.language-text {
  display: inline;
}

@media (max-width: 640px) {
  .language-text {
    display: none;
  }
}

/* Language Dropdown */
.language-dropdown {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  min-width: 160px;
  background: white;
  border: 1px solid var(--header-border-light);
  border-radius: 0.5rem;
  box-shadow: var(--header-shadow-lg);
  overflow: hidden;
  z-index: 1000;
}

.dark .language-dropdown,
[data-theme="dark"] .language-dropdown {
  background: var(--header-bg-dark);
  border-color: var(--header-border-dark);
}

.language-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  color: var(--header-text-light);
  font-size: 0.875rem;
  text-decoration: none;
  transition: all 0.2s ease;
  border-bottom: 1px solid var(--header-border-light);
}

.language-option:last-child {
  border-bottom: none;
}

.language-option:hover {
  background: var(--header-hover-light);
  color: var(--header-accent);
}

.language-option.active {
  background: rgba(225, 29, 72, 0.1);
  color: var(--header-accent);
  font-weight: 600;
}

.dark .language-option,
[data-theme="dark"] .language-option {
  color: var(--header-text-dark);
  border-bottom-color: var(--header-border-dark);
}

.dark .language-option:hover,
[data-theme="dark"] .language-option:hover {
  background: var(--header-hover-dark);
}

.dark .language-option.active,
[data-theme="dark"] .language-option.active {
  background: rgba(225, 29, 72, 0.15);
  color: var(--header-accent);
}

/* ============================================
   DARK MODE TOGGLE
   ============================================ */
.mobile-dark-mode {
  display: none;
}

@media (max-width: 767px) {
  .mobile-dark-mode {
    display: block;
  }
}

.dark-mode-toggle,
.dark-mode-toggle-small {
  position: relative;
  width: 48px;
  height: 28px;
  background: #e5e7eb;
  border: 2px solid var(--header-border-light);
  border-radius: 14px;
  cursor: pointer;
  transition: all 0.3s ease;
  overflow: hidden;
}

.dark-mode-toggle-small {
  width: 40px;
  height: 24px;
  border-radius: 12px;
}

.dark .dark-mode-toggle,
.dark .dark-mode-toggle-small,
[data-theme="dark"] .dark-mode-toggle,
[data-theme="dark"] .dark-mode-toggle-small {
  background: #334155;
  border-color: var(--header-border-dark);
}

.dark-mode-toggle i,
.dark-mode-toggle-small i {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
  transition: all 0.3s ease;
}

.dark-mode-toggle .dark-icon,
.dark-mode-toggle-small .dark-icon {
  left: 6px;
  color: #64748b;
  opacity: 1;
}

.dark-mode-toggle .light-icon,
.dark-mode-toggle-small .light-icon {
  right: 6px;
  color: #f59e0b;
  opacity: 0;
}

.dark .dark-mode-toggle .dark-icon,
.dark .dark-mode-toggle-small .dark-icon,
[data-theme="dark"] .dark-mode-toggle .dark-icon,
[data-theme="dark"] .dark-mode-toggle-small .dark-icon {
  opacity: 0;
}

.dark .dark-mode-toggle .light-icon,
.dark .dark-mode-toggle-small .light-icon,
[data-theme="dark"] .dark-mode-toggle .light-icon,
[data-theme="dark"] .dark-mode-toggle-small .light-icon {
  opacity: 1;
}

/* ============================================
   USER MENU
   ============================================ */
.user-button {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  background: white;
  border: 1px solid var(--header-border-light);
  border-radius: 0.5rem;
  color: var(--header-text-light);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.user-button:hover {
  background: var(--header-hover-light);
  border-color: var(--header-accent);
}

.dark .user-button,
[data-theme="dark"] .user-button {
  background: var(--header-bg-dark);
  border-color: var(--header-border-dark);
  color: var(--header-text-dark);
}

.dark .user-button:hover,
[data-theme="dark"] .user-button:hover {
  background: var(--header-hover-dark);
}

.user-avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--header-accent) 0%, var(--header-accent-hover) 100%);
  color: white;
  font-weight: 700;
  font-size: 1rem;
  border-radius: 50%;
  text-transform: uppercase;
  box-shadow: 0 2px 8px rgba(225, 29, 72, 0.25);
}

.user-name {
  display: inline;
  max-width: 150px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

@media (max-width: 640px) {
  .user-name {
    display: none;
  }
}

/* User Dropdown */
.user-dropdown {
  position: absolute;
  top: calc(100% + 0.75rem);
  right: 0;
  min-width: 220px;
  background: white;
  border: 1px solid var(--header-border-light);
  border-radius: 0.75rem;
  box-shadow: var(--header-shadow-lg);
  overflow: hidden;
  z-index: 1000;
}

.dark .user-dropdown,
[data-theme="dark"] .user-dropdown {
  background: var(--header-bg-dark);
  border-color: var(--header-border-dark);
}

.user-menu-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  color: var(--header-text-light);
  font-size: 0.875rem;
  text-decoration: none;
  transition: all 0.2s ease;
}

.user-menu-item i {
  width: 20px;
  text-align: center;
  color: var(--header-text-secondary-light);
}

.user-menu-item:hover {
  background: var(--header-hover-light);
  color: var(--header-accent);
}

.user-menu-item:hover i {
  color: var(--header-accent);
}

.user-menu-item.logout {
  color: #dc2626;
  font-weight: 600;
}

.user-menu-item.logout:hover {
  background: #fee2e2;
  color: #b91c1c;
}

.user-menu-item.logout i {
  color: #dc2626;
}

.dark .user-menu-item,
[data-theme="dark"] .user-menu-item {
  color: var(--header-text-dark);
}

.dark .user-menu-item i,
[data-theme="dark"] .user-menu-item i {
  color: var(--header-text-secondary-dark);
}

.dark .user-menu-item:hover,
[data-theme="dark"] .user-menu-item:hover {
  background: var(--header-hover-dark);
}

.dark .user-menu-item.logout,
[data-theme="dark"] .user-menu-item.logout {
  color: #f87171;
}

.dark .user-menu-item.logout:hover,
[data-theme="dark"] .user-menu-item.logout:hover {
  background: rgba(220, 38, 38, 0.1);
  color: #fca5a5;
}

.user-menu-divider {
  height: 1px;
  background: var(--header-border-light);
  margin: 0.5rem 0;
}

.dark .user-menu-divider,
[data-theme="dark"] .user-menu-divider {
  background: var(--header-border-dark);
}

.user-menu-dark-mode {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  color: var(--header-text-light);
  font-size: 0.875rem;
}

.dark .user-menu-dark-mode,
[data-theme="dark"] .user-menu-dark-mode {
  color: var(--header-text-dark);
}

/* ============================================
   LOGIN BUTTON
   ============================================ */
.login-button {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1.5rem;
  background: var(--header-accent);
  color: white;
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: 0.5rem;
  text-decoration: none;
  transition: all 0.2s ease;
  box-shadow: 0 2px 4px rgba(225, 29, 72, 0.2);
}

.login-button:hover {
  background: var(--header-accent-hover);
  box-shadow: 0 4px 8px rgba(225, 29, 72, 0.3);
  transform: translateY(-1px);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
  .header-center {
    gap: 0.5rem;
  }
}

@media (max-width: 767px) {
  .header-container {
    padding: 0 0.75rem;
  }

  .header-left,
  .header-center,
  .header-right {
    gap: 0.5rem;
  }
}

@media (max-width: 480px) {
  .header-container {
    padding: 0 0.5rem;
  }
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.language-dropdown,
.user-dropdown {
  animation: slideDown 0.2s ease-out;
}

/* ============================================
   ACCESSIBILITY
   ============================================ */
.hamburger-button:focus,
.language-button:focus,
.user-button:focus,
.dark-mode-toggle:focus,
.dark-mode-toggle-small:focus {
  outline: 2px solid var(--header-accent);
  outline-offset: 2px;
}

.language-option:focus,
.user-menu-item:focus {
  outline: 2px solid var(--header-accent);
  outline-offset: -2px;
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
  .header-container {
    position: static !important;
    box-shadow: none !important;
    border-bottom: 1px solid #e5e7eb !important;
  }

  .hamburger-button,
  .language-selector,
  .mobile-dark-mode,
  .user-button {
    display: none !important;
  }
}