/* ===== REUSABLE COMPONENTS ===== */

/* Badge Component */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--border-radius-xl);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-primary {
    background-color: var(--primary-color);
    color: var(--white);
}

.badge-secondary {
    background-color: var(--gray-100);
    color: var(--gray-700);
}

.badge-success {
    background-color: var(--success-color);
    color: var(--white);
}

.badge-warning {
    background-color: var(--warning-color);
    color: var(--white);
}

.badge-error {
    background-color: var(--error-color);
    color: var(--white);
}

/* Alert Component */
.alert {
    padding: var(--spacing-4);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-4);
    border: 1px solid transparent;
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.1);
    border-color: var(--success-color);
    color: var(--success-color);
}

.alert-warning {
    background-color: rgba(245, 158, 11, 0.1);
    border-color: var(--warning-color);
    color: var(--warning-color);
}

.alert-error {
    background-color: rgba(239, 68, 68, 0.1);
    border-color: var(--error-color);
    color: var(--error-color);
}

.alert-info {
    background-color: rgba(59, 130, 246, 0.1);
    border-color: var(--info-color);
    color: var(--info-color);
}

.alert-icon {
    flex-shrink: 0;
    font-size: var(--text-lg);
}

.alert-content {
    flex: 1;
}

.alert-title {
    font-weight: 600;
    margin-bottom: var(--spacing-1);
}

.alert-message {
    font-size: var(--text-sm);
    line-height: 1.5;
}

/* Progress Bar Component */
.progress {
    width: 100%;
    height: 8px;
    background-color: var(--gray-200);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-hover));
    border-radius: var(--border-radius-xl);
    transition: width var(--transition-base);
    position: relative;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: progressShine 2s infinite;
}

@keyframes progressShine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Avatar Component */
.avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: var(--gray-300);
    color: var(--gray-700);
    font-weight: 600;
    position: relative;
    overflow: hidden;
}

.avatar-sm {
    width: 32px;
    height: 32px;
    font-size: var(--text-sm);
}

.avatar-md {
    width: 40px;
    height: 40px;
    font-size: var(--text-base);
}

.avatar-lg {
    width: 56px;
    height: 56px;
    font-size: var(--text-lg);
}

.avatar-xl {
    width: 80px;
    height: 80px;
    font-size: var(--text-2xl);
}

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

.avatar-online::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 25%;
    height: 25%;
    background-color: var(--success-color);
    border: 2px solid var(--white);
    border-radius: 50%;
}

/* Dropdown Component */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-2);
    border-radius: var(--border-radius);
    transition: background-color var(--transition-fast);
}

.dropdown-toggle:hover {
    background-color: var(--gray-100);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background-color: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
    z-index: var(--z-dropdown);
}

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

.dropdown-item {
    display: flex;
    align-items: center;
    width: 100%;
    padding: var(--spacing-2) var(--spacing-3);
    border: none;
    background: none;
    color: var(--gray-700);
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: background-color var(--transition-fast);
    font-size: var(--text-sm);
}

.dropdown-item:hover {
    background-color: var(--gray-100);
    color: var(--gray-900);
    text-decoration: none;
}

.dropdown-divider {
    height: 1px;
    background-color: var(--gray-200);
    margin: var(--spacing-2) 0;
}

/* Modal Component */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: transform var(--transition-base);
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-header {
    padding: var(--spacing-6);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    margin: 0;
    font-size: var(--text-xl);
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: var(--text-2xl);
    cursor: pointer;
    color: var(--gray-500);
    transition: color var(--transition-fast);
}

.modal-close:hover {
    color: var(--gray-700);
}

.modal-body {
    padding: var(--spacing-6);
}

.modal-footer {
    padding: var(--spacing-6);
    border-top: 1px solid var(--gray-200);
    display: flex;
    gap: var(--spacing-3);
    justify-content: flex-end;
}

/* Tab Component */
.tabs {
    border-bottom: 1px solid var(--gray-200);
}

.tab-list {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--spacing-2);
}

.tab-button {
    background: none;
    border: none;
    padding: var(--spacing-3) var(--spacing-4);
    cursor: pointer;
    color: var(--gray-600);
    font-weight: 500;
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
}

.tab-button:hover {
    color: var(--primary-color);
}

.tab-button.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.tab-content {
    padding: var(--spacing-6) 0;
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
}

/* Skeleton Loading Component */
.skeleton {
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: skeletonLoading 1.5s infinite;
    border-radius: var(--border-radius);
}

@keyframes skeletonLoading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.skeleton-text {
    height: 1em;
    margin-bottom: var(--spacing-2);
}

.skeleton-title {
    height: 1.5em;
    width: 60%;
    margin-bottom: var(--spacing-3);
}

.skeleton-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.skeleton-card {
    height: 200px;
    margin-bottom: var(--spacing-4);
}

/* Tooltip Component */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip-content {
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--gray-900);
    color: var(--white);
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--border-radius);
    font-size: var(--text-sm);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    z-index: var(--z-tooltip);
}

.tooltip-content::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--gray-900);
}

.tooltip:hover .tooltip-content {
    opacity: 1;
    visibility: visible;
}

/* Breadcrumb Component */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--text-sm);
    color: var(--gray-600);
    margin-bottom: var(--spacing-4);
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.breadcrumb-item:not(:last-child)::after {
    content: '/';
    color: var(--gray-400);
}

.breadcrumb-link {
    color: var(--gray-600);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.breadcrumb-item:last-child .breadcrumb-link {
    color: var(--gray-900);
    pointer-events: none;
}

/* Pagination Component */
.pagination {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    justify-content: center;
    margin: var(--spacing-8) 0;
}

.pagination-item {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    color: var(--gray-700);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.pagination-item:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--white);
    text-decoration: none;
}

.pagination-item.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--white);
}

.pagination-item.disabled {
    opacity: 0.5;
    pointer-events: none;
}

/* Loading Spinner Component */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--gray-200);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.spinner-lg {
    width: 40px;
    height: 40px;
    border-width: 4px;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-6);
    right: var(--spacing-6);
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-lg);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-fast);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: var(--z-fixed);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}