/* Task Management Page Styles */

/* Main Layout */
.task-management-container {
    display: flex;
    height: calc(100vh - var(--header-height));
    background: var(--color-bg-body);
}

/* Projects Sidebar */
.projects-sidebar {
    width: 280px;
    background: var(--color-bg-card);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.projects-sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--color-border);
}

.projects-sidebar-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0 0 1rem 0;
}

.projects-list {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem;
}

.project-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    margin-bottom: 0.25rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
    color: var(--color-text-secondary);
}

.project-item:hover {
    background: var(--color-bg-body);
    color: var(--color-text-primary);
}

.project-item.active {
    background: var(--color-primary-light);
    color: var(--color-primary);
    font-weight: 500;
}

.project-color {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

.project-name {
    flex: 1;
    font-size: 0.875rem;
}

.project-count {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    background: var(--color-bg-body);
    padding: 0.125rem 0.5rem;
    border-radius: 12px;
}

.project-item.active .project-count {
    background: var(--color-primary);
    color: white;
}

/* Task Content Area */
.task-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.task-content-header {
    padding: 1.5rem 2rem;
    background: var(--color-bg-card);
    border-bottom: 1px solid var(--color-border);
}

.task-header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.task-header-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0;
}

.task-header-actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.task-filters {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.filter-btn {
    padding: 0.5rem 1rem;
    border: 1px solid var(--color-border);
    background: var(--color-bg-card);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}

.filter-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.filter-btn.active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

/* Task Sections Container */
.task-sections-container {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem 2rem;
}

/* Task Section */
.task-section {
    margin-bottom: 2rem;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding: 0.5rem 0;
}

.section-collapse-btn {
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: 0.25rem;
    transition: transform 0.2s;
}

.section-collapse-btn:hover {
    color: var(--color-text-primary);
}

.section-collapse-btn.collapsed {
    transform: rotate(-90deg);
}

.section-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    flex: 1;
}

.section-count {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.section-menu-btn {
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: 0.25rem;
    opacity: 0;
    transition: opacity 0.2s;
}

.task-section:hover .section-menu-btn {
    opacity: 1;
}

.section-menu-btn:hover {
    color: var(--color-text-primary);
}

/* Task List */
.task-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.task-list.collapsed {
    display: none;
}

/* Task Item */
.task-item {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 0.875rem 1rem;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.task-item:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
}

.task-checkbox {
    width: 18px;
    height: 18px;
    border: 2px solid var(--color-border);
    border-radius: 4px;
    cursor: pointer;
    flex-shrink: 0;
    transition: all 0.2s;
}

.task-checkbox:hover {
    border-color: var(--color-primary);
}

.task-item.completed .task-checkbox {
    background: var(--color-success);
    border-color: var(--color-success);
    position: relative;
}

.task-item.completed .task-checkbox::after {
    content: '✓';
    color: white;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 12px;
}

.task-main {
    flex: 1;
    min-width: 0;
}

.task-name {
    font-size: 0.9rem;
    color: var(--color-text-primary);
    margin-bottom: 0.25rem;
    font-weight: 500;
}

.task-item.completed .task-name {
    text-decoration: line-through;
    color: var(--color-text-muted);
}

.task-description {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.task-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-shrink: 0;
}

.task-assignee {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.task-assignee-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--color-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 600;
}

.task-assignee-name {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}

.task-dates {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.task-date {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.task-date.overdue {
    color: var(--color-danger);
}

.task-date.due-soon {
    color: var(--color-warning);
}

.task-priority {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    flex-shrink: 0;
}

.task-priority.high {
    background: var(--color-danger);
}

.task-priority.medium {
    background: var(--color-warning);
}

.task-priority.low {
    background: var(--color-info);
}

/* Add Task Button */
.add-task-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: transparent;
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.875rem;
    width: 100%;
    margin-top: 0.5rem;
}

.add-task-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-light);
}

/* Inline Task Creation */
.task-item-new {
    background: var(--color-bg-card);
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-md);
    padding: 0.875rem 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.task-item-new .task-checkbox {
    width: 18px;
    height: 18px;
    border: 2px solid var(--color-border);
    border-radius: 4px;
    flex-shrink: 0;
}

.task-name-input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: 0.9rem;
    color: var(--color-text-primary);
    font-weight: 500;
    outline: none;
    font-family: var(--font-primary);
}

.task-name-input::placeholder {
    color: var(--color-text-muted);
    font-weight: 400;
}

.task-item-new .task-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-shrink: 0;
}

.task-quick-actions {
    display: flex;
    gap: 0.5rem;
}

.task-quick-btn {
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: 0.25rem;
    transition: color 0.2s;
    font-size: 0.9rem;
}

.task-quick-btn:hover {
    color: var(--color-text-primary);
}

.task-quick-btn.assignee-btn {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px dashed var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
}

.task-quick-btn.assignee-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.task-quick-btn.date-btn {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
}

.task-quick-btn.date-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* Quick Action Dropdowns */
.quick-action-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 0.5rem;
    min-width: 200px;
    z-index: 1000;
    display: none;
}

.quick-action-dropdown.active {
    display: block;
}

.quick-action-dropdown label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.quick-action-dropdown select,
.quick-action-dropdown input {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    font-family: var(--font-primary);
}

.quick-action-dropdown select:focus,
.quick-action-dropdown input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.quick-action-dropdown .dropdown-footer {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--color-border);
}

.quick-action-dropdown .dropdown-footer button {
    flex: 1;
    padding: 0.375rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.quick-action-dropdown .dropdown-footer .btn-cancel {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
}

.quick-action-dropdown .dropdown-footer .btn-cancel:hover {
    background: var(--color-bg-secondary);
}

.quick-action-dropdown .dropdown-footer .btn-apply {
    background: var(--color-primary);
    border: 1px solid var(--color-primary);
    color: white;
}

.quick-action-dropdown .dropdown-footer .btn-apply:hover {
    background: var(--color-primary-dark);
}

/* Position wrapper for dropdowns */
.task-quick-actions {
    position: relative;
}

.add-section-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: transparent;
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.875rem;
    margin-top: 1rem;
}

.add-section-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-light);
}

/* Task Detail Modal */
.task-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

.task-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.task-modal {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    transform: scale(0.9);
    transition: transform 0.3s;
}

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

/* Mobile Responsiveness */
@media (max-width: 640px) {
    .task-modal {
        width: 100%;
        height: 100%;
        max-height: 100vh;
        border-radius: 0;
    }

    .task-modal-grid {
        grid-template-columns: 1fr;
    }

    .task-modal-footer {
        flex-direction: column-reverse;
        gap: 1rem;
    }

    .task-modal-actions {
        width: 100%;
        justify-content: flex-end;
    }
}

/* Custom Scrollbar for Modal Body */
.task-modal-body::-webkit-scrollbar {
    width: 8px;
}

.task-modal-body::-webkit-scrollbar-track {
    background: transparent;
}

.task-modal-body::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 4px;
}

.task-modal-body::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-secondary);
}

.task-modal-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--color-bg-card);
    z-index: 10;
}

.task-modal-title-input {
    flex: 1;
    font-size: 1.25rem;
    font-weight: 600;
    border: none;
    background: transparent;
    color: var(--color-text-primary);
    padding: 0.5rem;
    margin: -0.5rem;
}

.task-modal-title-input:focus {
    outline: 2px solid var(--color-primary-light);
    border-radius: var(--radius-sm);
}

.task-modal-close {
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: 0.5rem;
    transition: color 0.2s;
}

.task-modal-close:hover {
    color: var(--color-text-primary);
}

.task-modal-body {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
}

.task-modal-section {
    margin-bottom: 1.5rem;
}

.task-modal-section-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.task-modal-description {
    width: 100%;
    min-height: 120px;
    padding: 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: 0.9rem;
    color: var(--color-text-primary);
    background: var(--color-bg-body);
    resize: vertical;
}

.task-modal-description:focus {
    outline: 2px solid var(--color-primary-light);
    border-color: var(--color-primary);
}

.task-modal-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.task-modal-field {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.task-modal-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.task-modal-select,
.task-modal-input {
    padding: 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: 0.9rem;
    color: var(--color-text-primary);
    background: var(--color-bg-body);
}

.task-modal-select:focus,
.task-modal-input:focus {
    outline: 2px solid var(--color-primary-light);
    border-color: var(--color-primary);
}

.task-modal-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.task-modal-actions {
    display: flex;
    gap: 0.75rem;
}

/* Comments Section */
.comments-section {
    margin-top: 2rem;
}

.comment-item {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-divider);
}

.comment-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    flex-shrink: 0;
}

.comment-content {
    flex: 1;
}

.comment-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
}

.comment-author {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.comment-time {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.comment-text {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

.comment-input-wrapper {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
}

.comment-input {
    flex: 1;
    padding: 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .projects-sidebar {
        position: absolute;
        left: -280px;
        top: 0;
        bottom: 0;
        z-index: 100;
        transition: left 0.3s;
    }

    .projects-sidebar.mobile-open {
        left: 0;
    }

    .task-modal-grid {
        grid-template-columns: 1fr;
    }

    .task-header-top {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .task-filters {
        width: 100%;
        overflow-x: auto;
    }

    .task-item {
        flex-wrap: wrap;
    }

    .task-meta {
        width: 100%;
        margin-top: 0.5rem;
    }
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
}

.empty-state-icon {
    font-size: 3rem;
    color: var(--color-text-muted);
    margin-bottom: 1rem;
}

.empty-state-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
}

.empty-state-text {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
}

/* Subtasks Section */
.subtasks-list {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-bottom: 1rem;
    width: 100%;
}

.subtask-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.375rem 0.5rem;
    border-radius: var(--radius-sm);
    transition: background 0.2s;
    min-height: 2.5rem;
}

.subtask-item:hover {
    background: var(--color-bg-secondary);
}

.subtask-checkbox {
    width: 18px;
    height: 18px;
    /* Fixed height for alignment */
    border: 2px solid var(--color-border);
    border-radius: 50%;
    cursor: pointer;
    flex-shrink: 0;
    position: relative;
    transition: all 0.2s;
    margin-top: 1px;
    /* Optical alignment */
}

.subtask-checkbox:hover {
    border-color: var(--color-primary);
}

.subtask-item.completed .subtask-checkbox {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.subtask-item.completed .subtask-checkbox::after {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: white;
    font-size: 10px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.subtask-item.completed .subtask-text {
    text-decoration: line-through;
    color: var(--color-text-muted);
}

.subtask-text {
    flex: 1;
    font-size: 0.9rem;
    color: var(--color-text-primary);
    background: transparent;
    border: none;
    outline: none;
    padding: 0.25rem 0;
    /* Better touch target vertical */
    line-height: 1.5;
}

.subtask-actions {
    opacity: 0;
    transition: opacity 0.2s;
    display: flex;
    align-items: center;
}

.subtask-item:hover .subtask-actions {
    opacity: 1;
}

.subtask-delete-btn {
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: 0.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 4px;
}

.subtask-delete-btn:hover {
    color: var(--color-danger);
    background: rgba(220, 53, 69, 0.1);
}

.add-subtask-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    color: var(--color-text-muted);
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.2s;
    width: fit-content;
}

.add-subtask-btn:hover {
    color: var(--color-primary);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-sm);
}