/**
 * Maintenance Kanban Board - Tailwind CSS-based Styling
 * 5-column drag-drop board for maintenance task management
 */

/* Kanban board grid layout */
.kanban-board {
    display: grid;
    grid-template-columns: repeat(5, minmax(280px, 1fr));
    gap: 1rem;
    overflow-x: auto;
    padding: 1rem 0;
}

/* Column container */
.kanban-column {
    min-height: 400px;
    max-height: calc(100vh - 250px);
    overflow-y: auto;
    border-radius: 0.5rem;
    padding: 1rem;
    background: #ffffff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.dark .kanban-column {
    background: #1f2937;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* Column header */
.kanban-column-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid #e5e7eb;
}

.dark .kanban-column-header {
    border-bottom-color: #374151;
}

.kanban-column-title {
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.kanban-column-title i {
    color: #3b82f6;
}

.kanban-column-count {
    font-size: 0.875rem;
    color: #6b7280;
    margin-left: 0.5rem;
}

.dark .kanban-column-count {
    color: #9ca3af;
}

/* Cards container */
.kanban-cards {
    min-height: 200px;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

/* Task card */
.kanban-card {
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 0.5rem;
    padding: 0.75rem;
    cursor: grab;
    transition: all 0.2s ease;
    position: relative;
}

.dark .kanban-card {
    background: #374151;
    border-color: #4b5563;
}

.kanban-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-color: #3b82f6;
}

.dark .kanban-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.kanban-card:active {
    cursor: grabbing;
}

/* Priority badge */
.priority-badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.priority-badge.critical {
    background: #dc2626;
    color: white;
}

.priority-badge.high {
    background: #f97316;
    color: white;
}

.priority-badge.medium {
    background: #eab308;
    color: #1f2937;
}

.priority-badge.low {
    background: #22c55e;
    color: white;
}

/* Card title */
.kanban-card-title {
    font-weight: 600;
    font-size: 0.875rem;
    margin: 0.5rem 0;
    color: #111827;
}

.dark .kanban-card-title {
    color: #f9fafb;
}

/* Card description */
.kanban-card-description {
    font-size: 0.75rem;
    color: #6b7280;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.dark .kanban-card-description {
    color: #9ca3af;
}

/* Card footer */
.kanban-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.75rem;
    color: #6b7280;
    margin-top: 0.5rem;
}

.dark .kanban-card-footer {
    color: #9ca3af;
}

/* Due date indicator */
.kanban-card-due-date {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.kanban-card-due-date.overdue {
    color: #dc2626;
    font-weight: 700;
    animation: pulse 2s infinite;
}

.dark .kanban-card-due-date.overdue {
    color: #f87171;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* Tags */
.kanban-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    margin-top: 0.5rem;
}

.kanban-card-tag {
    font-size: 0.625rem;
    padding: 0.125rem 0.375rem;
    border-radius: 0.25rem;
    background: #dbeafe;
    color: #1e40af;
}

.dark .kanban-card-tag {
    background: #1e3a8a;
    color: #93c5fd;
}

/* Auto-generated indicator */
.kanban-card-auto-icon {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    color: #3b82f6;
    font-size: 0.875rem;
    animation: rotate 3s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Drag ghost element */
.sortable-ghost {
    opacity: 0.4;
    background: #dbeafe !important;
    border: 2px dashed #3b82f6 !important;
}

.dark .sortable-ghost {
    background: #1e3a8a !important;
}

/* Add task button */
.add-task-btn {
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    background: #3b82f6;
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    font-size: 1rem;
}

.add-task-btn:hover {
    background: #2563eb;
    transform: scale(1.1);
}

.add-task-btn:active {
    transform: scale(0.95);
}

/* Empty column placeholder */
.kanban-cards:empty::after {
    content: "Kéo task vào đây";
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100px;
    color: #9ca3af;
    font-style: italic;
    font-size: 0.875rem;
    border: 2px dashed #d1d5db;
    border-radius: 0.5rem;
}

.dark .kanban-cards:empty::after {
    color: #6b7280;
    border-color: #4b5563;
}

/* View toggle buttons */
.maintenance-view-toggle {
    display: inline-flex;
    border-radius: 0.5rem;
    border: 1px solid #d1d5db;
    overflow: hidden;
}

.dark .maintenance-view-toggle {
    border-color: #4b5563;
}

.maintenance-view-toggle button {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    border: none;
    background: white;
    color: #6b7280;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.dark .maintenance-view-toggle button {
    background: #1f2937;
    color: #9ca3af;
}

.maintenance-view-toggle button.active {
    background: #3b82f6;
    color: white;
}

.dark .maintenance-view-toggle button.active {
    background: #2563eb;
}

.maintenance-view-toggle button:hover:not(.active) {
    background: #f3f4f6;
}

.dark .maintenance-view-toggle button:hover:not(.active) {
    background: #374151;
}

/* Task modal */
.task-modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.task-modal {
    background: white;
    border-radius: 0.75rem;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

.dark .task-modal {
    background: #1f2937;
}

.task-modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid #e5e7eb;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.dark .task-modal-header {
    border-bottom-color: #374151;
}

.task-modal-body {
    padding: 1.5rem;
}

.task-modal-footer {
    padding: 1.5rem;
    border-top: 1px solid #e5e7eb;
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
}

.dark .task-modal-footer {
    border-top-color: #374151;
}

/* Auto-assignment suggestion badge */
.auto-assign-suggestion {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.auto-assign-suggestion i {
    animation: bounce 1s infinite;
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}

.auto-assign-score {
    margin-left: auto;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.875rem;
}

.auto-assign-reasons {
    font-size: 0.75rem;
    opacity: 0.9;
    margin-top: 0.25rem;
}

/* Responsive: Mobile (stack columns vertically) */
@media (max-width: 768px) {
    .kanban-board {
        grid-template-columns: 1fr;
    }

    .kanban-column {
        max-height: none;
        min-height: 300px;
    }

    .maintenance-view-toggle {
        width: 100%;
    }

    .maintenance-view-toggle button {
        flex: 1;
    }
}

/* Responsive: Tablet (2 columns) */
@media (min-width: 769px) and (max-width: 1024px) {
    .kanban-board {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Dark mode scrollbar */
.dark .kanban-column::-webkit-scrollbar {
    width: 8px;
}

.dark .kanban-column::-webkit-scrollbar-track {
    background: #1f2937;
}

.dark .kanban-column::-webkit-scrollbar-thumb {
    background: #4b5563;
    border-radius: 4px;
}

.dark .kanban-column::-webkit-scrollbar-thumb:hover {
    background: #6b7280;
}

/* Light mode scrollbar */
.kanban-column::-webkit-scrollbar {
    width: 8px;
}

.kanban-column::-webkit-scrollbar-track {
    background: #f3f4f6;
}

.kanban-column::-webkit-scrollbar-thumb {
    background: #d1d5db;
    border-radius: 4px;
}

.kanban-column::-webkit-scrollbar-thumb:hover {
    background: #9ca3af;
}

/* Loading state */
.kanban-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.kanban-loading i {
    font-size: 3rem;
    color: #3b82f6;
    animation: spin 1s linear infinite;
}

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

/* Column-specific colors (optional accents) */
.kanban-column[data-status="planned"] .kanban-column-title i {
    color: #8b5cf6;
}

.kanban-column[data-status="issued"] .kanban-column-title i {
    color: #dc2626;
}

.kanban-column[data-status="upcoming"] .kanban-column-title i {
    color: #f59e0b;
}

.kanban-column[data-status="in_progress"] .kanban-column-title i {
    color: #3b82f6;
}

.kanban-column[data-status="completed"] .kanban-column-title i {
    color: #10b981;
}

/* Transition animations */
.kanban-card-enter {
    animation: slideIn 0.3s ease-out;
}

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