/* ===================================
   ADMIN HEADER COMPONENT STYLES - IMPROVED
   =================================== */

/* Admin Header Container */
:root {
    --admin-header-height: 70px;
}

.admin-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--admin-header-height);
    background-color: var(--header-bg-1);
    border-bottom: 1px solid var(--border-color-1);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
}

/* Offset fixed header so content doesn't sit under it */
.admin-header + .main-content {
    padding-top: calc(var(--admin-header-height) + 1.25rem);
}

[data-theme="dark"] .admin-header {
    box-shadow: none;
}

/* Header Left Section */
.admin-header-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex: 1;
}

.menu-toggle {
    background: none;
    border: none;
    color: var(--nav-text-1);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.625rem;
    border-radius: 0.5rem;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.menu-toggle:hover {
    background-color: var(--sidebar-hover-bg-1);
    color: var(--primary-color-1);
}

/* Search Container */
.search-container {
    position: relative;
    display: flex;
    align-items: center;
    flex: 1;
    max-width: 450px;
}

.search-icon {
    position: absolute;
    left: 1rem;
    color: var(--text-secondary-1);
    font-size: 0.9rem;
    pointer-events: none;
}

.search-input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.75rem;
    border: 1px solid var(--border-color-1);
    border-radius: 0.5rem;
    background-color: var(--card-bg-1);
    color: var(--text-color-1);
    font-size: 0.875rem;
    transition: all 0.3s ease;
    outline: none;
}

.search-input::placeholder {
    color: var(--text-secondary-1);
}

.search-input:focus {
    border-color: var(--primary-color-1);
    box-shadow: 0 0 0 3px rgba(76, 138, 137, 0.1);
}

.search-input:focus ~ .search-icon,
.search-input:focus + .search-icon {
    color: var(--primary-color-1);
}

/* Search Dropdown */
.search-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    right: 0;
    background-color: var(--card-bg-1);
    border: 1px solid var(--border-color-1);
    border-radius: 0.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    max-height: 300px;
    overflow-y: auto;
    z-index: 1000;
    display: none;
}

.search-result-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: background 0.2s ease;
    border-bottom: 1px solid var(--border-color-1);
}

.search-result-item:last-child {
    border-bottom: none;
}

.search-result-item:hover,
.search-result-item.selected {
    background-color: var(--sidebar-hover-bg-1);
}

.search-result-item i {
    color: var(--primary-color-1);
    font-size: 1rem;
    width: 20px;
    text-align: center;
}

.search-result-item span {
    color: var(--text-color-1);
    font-size: 0.95rem;
    font-weight: 500;
}

.search-result-item.no-results {
    cursor: default;
    opacity: 0.6;
}

.search-result-item.no-results i {
    color: var(--text-secondary-1);
}

/* Header Right Section */
.admin-header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-shrink: 0;
    margin-left: auto;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.notification-item {
    position: relative;
}

.notification-btn {
    background: none;
    border: none;
    color: var(--text-secondary-1);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.625rem;
    border-radius: 0.5rem;
    transition: all 0.2s ease;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.notification-btn:hover,
.notification-btn.active {
    background-color: var(--sidebar-hover-bg-1);
    color: var(--primary-color-1);
}

.notification-badge {
    position: absolute;
    top: 0.375rem;
    right: 0.375rem;
    background-color: #dc3545;
    color: white;
    font-size: 0.625rem;
    font-weight: 600;
    padding: 0.125rem 0.375rem;
    border-radius: 10px;
    min-width: 1.125rem;
    text-align: center;
    line-height: 1.2;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

/* Header Divider */
.header-divider {
    width: 1px;
    height: 32px;
    background-color: var(--border-color-1);
    margin: 0 0.5rem;
}

/* User Profile Section */
.user-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    transition: all 0.2s ease;
    cursor: pointer;
    color: var(--text-color-1);
}

.user-profile:hover {
    background-color: var(--sidebar-hover-bg-1);
}

.user-info {
    text-align: right;
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.user-name {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-color-1);
    line-height: 1.3;
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-secondary-1);
    line-height: 1.3;
}

.user-avatar {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
    overflow: hidden;
    border: 2px solid var(--border-color-1);
}

.avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.dropdown-icon {
    font-size: 0.75rem;
    color: var(--text-secondary-1);
    transition: transform 0.2s ease;
}

.user-profile:hover .dropdown-icon {
    color: var(--primary-color-1);
}

.user-profile.active .dropdown-icon {
    transform: translateY(2px) rotate(180deg);
}

/* ===================================
   USER PROFILE DROPDOWN
   =================================== */

.user-profile-dropdown {
    position: fixed;
    top: 70px;
    right: 2rem;
    width: 320px;
    background-color: var(--card-bg-1);
    border: 1px solid var(--border-color-1);
    border-radius: 0.75rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    overflow: hidden;
}

.user-profile-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-header {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color-1);
    background-color: var(--header-bg-1);
}

.dropdown-user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.dropdown-user-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.dropdown-user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.dropdown-user-details {
    flex: 1;
    min-width: 0;
}

.dropdown-user-name {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-color-1);
    margin-bottom: 0.125rem;
    line-height: 1.3;
}

.dropdown-user-email {
    font-size: 0.75rem;
    color: var(--text-secondary-1);
    line-height: 1.3;
}

.dropdown-body {
    padding: 0.5rem;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    color: var(--text-color-1);
    text-decoration: none;
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

.dropdown-item:hover {
    background-color: var(--sidebar-hover-bg-1);
    color: var(--primary-color-1);
    text-decoration: none;
}

.dropdown-item i {
    width: 16px;
    font-size: 0.875rem;
    text-align: center;
    flex-shrink: 0;
}

.dropdown-footer {
    padding: 0.5rem;
    border-top: 1px solid var(--border-color-1);
    background-color: var(--header-bg-1);
}

.logout-item {
    color: #dc3545;
}

.logout-item:hover {
    background-color: rgba(220, 53, 69, 0.1);
    color: #dc3545;
}

/* ===================================
   ANIMATIONS & TRANSITIONS
   =================================== */

@keyframes slideInFromTop {
    from {
        transform: translateY(-10px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

/* Desktop - Sidebar visible, adjust header */
@media (min-width: 1024px) {
    .admin-header {
        left: var(--sidebar-width-1);
        padding: 0 2rem;
    }
    
    .menu-toggle {
        display: none;
    }
}

/* Tablet - Sidebar can be toggled */
@media (min-width: 768px) and (max-width: 1023px) {
    .admin-header {
        padding: 0 1.5rem;
    }
    
    .admin-header-left {
        gap: 1rem;
    }
    
    .search-container {
        max-width: 300px;
    }
    
    .search-input {
        font-size: 0.8125rem;
        padding: 0.625rem 1rem 0.625rem 2.5rem;
    }
    
    .search-icon {
        font-size: 0.8125rem;
        left: 0.875rem;
    }
    
    .notification-btn {
        font-size: 1.125rem;
        width: 38px;
        height: 38px;
    }
    
    .notification-badge {
        font-size: 0.5625rem;
        padding: 0.09375rem 0.34375rem;
        top: 0.3125rem;
        right: 0.3125rem;
    }
    
    .user-avatar {
        width: 36px;
        height: 36px;
    }
    
    .user-name {
        font-size: 0.8125rem;
    }
    
    .user-role {
        font-size: 0.6875rem;
    }
    
    .user-profile {
        padding: 0.375rem 0.875rem;
    }
    
    .header-divider {
        height: 28px;
    }
}

/* Mobile - Full width header */
@media (max-width: 767px) {
    .admin-header {
        padding: 0 1rem;
        height: 60px;
    }
    
    .admin-header-left {
        gap: 0.75rem;
    }
    
    .menu-toggle {
        padding: 0.5rem;
        font-size: 1.125rem;
        width: 36px;
        height: 36px;
    }
    
    .search-container {
        max-width: 180px;
    }
    
    .search-input {
        font-size: 0.75rem;
        padding: 0.5rem 0.875rem 0.5rem 2.25rem;
    }
    
    .search-icon {
        font-size: 0.75rem;
        left: 0.75rem;
    }
    
    .admin-header-right {
        gap: 0.5rem;
    }
    
    .header-actions {
        gap: 0.25rem;
    }
    
    .notification-btn {
        font-size: 1rem;
        padding: 0.5rem;
        width: 36px;
        height: 36px;
    }
    
    .notification-badge {
        font-size: 0.5rem;
        padding: 0.09375rem 0.3125rem;
        top: 0.25rem;
        right: 0.25rem;
    }
    
    .header-divider {
        height: 24px;
        margin: 0 0.25rem;
    }
    
    .user-avatar {
        width: 32px;
        height: 32px;
    }
    
    .user-info {
        display: none;
    }
    
    .dropdown-icon {
        display: none;
    }
    
    .user-profile {
        padding: 0.375rem;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .admin-header {
        padding: 0 0.75rem;
        height: 56px;
    }
    
    .admin-header-left {
        gap: 0.5rem;
    }
    
    .menu-toggle {
        padding: 0.375rem;
        font-size: 1rem;
        width: 32px;
        height: 32px;
    }
    
    .search-container {
        display: none;
    }
    
    .admin-header-right {
        gap: 0.5rem;
    }
    
    .header-actions {
        gap: 0.25rem;
    }
    
    .notification-btn {
        font-size: 0.9375rem;
        padding: 0.375rem;
        width: 32px;
        height: 32px;
    }
    
    .notification-badge {
        font-size: 0.4375rem;
        padding: 0.0625rem 0.28125rem;
        top: 0.1875rem;
        right: 0.1875rem;
    }
    
    .header-divider {
        display: none;
    }
    
    .user-avatar {
        width: 28px;
        height: 28px;
    }
    
    .user-profile {
        padding: 0.25rem;
    }
}

/* ===================================
   ACCESSIBILITY & FOCUS STATES
   =================================== */

.search-input:focus {
    outline: none;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .admin-header {
        border-width: 2px;
    }
    
    .notification-btn,
    .menu-toggle,
    .user-profile {
        border: 1px solid transparent;
    }
    
    .notification-btn:focus,
    .menu-toggle:focus,
    .user-profile:focus {
        border-color: var(--primary-color-1);
    }
    
    .user-avatar {
        border-width: 2px;
    }
}

/* Theme Toggle Container */
.theme-toggle-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--border-color-1);
    border-radius: 8px;
    padding: 0.25rem;
    margin-right: 1rem;
}

[data-theme="dark"] .theme-toggle-container {
    background: rgba(255, 255, 255, 0.1);
}

.theme-mode-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: var(--text-secondary-1);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.theme-mode-btn:hover {
    color: var(--text-color-1);
    background: rgba(76, 138, 137, 0.1);
}

[data-theme="dark"] .theme-mode-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.theme-mode-btn.active {
    background: var(--primary-color-1);
    color: white;
    box-shadow: 0 2px 4px rgba(76, 138, 137, 0.2);
}

.theme-mode-btn i {
    font-size: 0.9rem;
}

/* Responsive theme buttons */
@media (max-width: 768px) {
    .theme-mode-btn span {
        display: none;
    }
    
    .theme-mode-btn {
        padding: 0.5rem;
        min-width: 40px;
        justify-content: center;
    }
    
    .theme-toggle-container {
        margin-right: 0.5rem;
        padding: 0.2rem;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .admin-header,
    .menu-toggle,
    .notification-btn,
    .user-profile,
    .dropdown-icon {
        transition: none;
    }
}

/* Date Time Display */
.datetime-display {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-right: 1.5rem;
    color: var(--text-color-1);
    font-size: 0.9rem;
    font-weight: 500;
    white-space: nowrap;
}

.datetime-display .date-part {
    color: var(--text-secondary-1);
}

.datetime-display .time-separator {
    color: var(--border-color-1);
    margin: 0 0.25rem;
}

.datetime-display .time-part {
    font-variant-numeric: tabular-nums;
    color: var(--primary-color-1);
    font-weight: 600;
}

@media (max-width: 1024px) {
    .datetime-display {
        display: none;
    }
}