/* kanban.css — Kanban board layout, cards, drag states, modal
 * Modern Pastoralist Design System
 */

/* Header Filters */
#filter-person,
#filter-entity {
    min-width: 120px;
    max-width: 160px;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    padding-right: 28px;
}

#filter-person:hover,
#filter-entity:hover {
    background-color: var(--m-surface-container) !important;
}

#filter-person:focus,
#filter-entity:focus {
    outline: none;
    background-color: var(--m-surface-container-highest) !important;
}

/* Board Layout */
.kanban-board {
    display: flex;
    gap: var(--m-space-lg);
    overflow-x: auto;
    padding-bottom: var(--m-space-lg);
    min-height: 70vh;
    padding: var(--m-space-md);
}

/* Column Styling - Surface Container Low with No-Line Rule */
.kanban-column {
    flex: 0 0 320px;
    background: var(--m-surface-container-low);
    border-radius: var(--m-radius-2xl);
    display: flex;
    flex-direction: column;
    max-height: 80vh;
    box-shadow: var(--m-shadow-float);
    transition: box-shadow 0.3s ease;
}

.kanban-column:hover {
    box-shadow: var(--m-shadow-card);
}

/* Column Header - Sticky with tonal background */
.kanban-column-header {
    padding: var(--m-space-md) var(--m-space-lg);
    font-weight: 700;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    border-radius: var(--m-radius-2xl) var(--m-radius-2xl) 0 0;
    z-index: 1;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

/* Task Count Badge */
.kanban-column-header .task-count {
    background: var(--m-surface-container-highest);
    color: var(--m-on-surface-variant);
    border-radius: var(--m-radius-full);
    padding: 0.25rem var(--m-space-md);
    font-size: 0.75rem;
    font-weight: 700;
    min-width: 1.5rem;
    text-align: center;
}

/* Column Personalities - Using tonal shifts instead of borders */
.kanban-column[data-personality="BACKLOG"] .kanban-column-header { 
    background: #2e7d32; 
    color: white;
}
.kanban-column[data-personality="BACKLOG"] .kanban-column-header .task-count {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.kanban-column[data-personality="REFINE"] .kanban-column-header { 
    background: #c8e6c9; 
    color: #2e7d32;
}
.kanban-column[data-personality="REFINE"] .kanban-column-header .task-count {
    background: rgba(46, 125, 50, 0.15);
    color: #2e7d32;
}

.kanban-column[data-personality="QUEUE"] .kanban-column-header { 
    background: #dcedc8; 
    color: #558b2f;
}
.kanban-column[data-personality="QUEUE"] .kanban-column-header .task-count {
    background: rgba(85, 139, 47, 0.15);
    color: #558b2f;
}

.kanban-column[data-personality="STANDARD"] .kanban-column-header { 
    background: var(--m-primary-container); 
    color: var(--m-on-primary-container);
}
.kanban-column[data-personality="STANDARD"] .kanban-column-header .task-count {
    background: rgba(82, 107, 74, 0.15);
    color: var(--m-on-primary-container);
}

.kanban-column[data-personality="DONE"] .kanban-column-header { 
    background: var(--m-surface-container-high); 
    color: var(--m-on-surface);
}
.kanban-column[data-personality="DONE"] .kanban-column-header .task-count {
    background: var(--m-surface-container-highest);
    color: var(--m-on-surface-variant);
}

/* Tasks Container */
.kanban-tasks {
    flex: 1;
    overflow-y: auto;
    padding: var(--m-space-md);
    min-height: 100px;
}

/* Drag Over State */
.kanban-tasks.drag-over {
    background: var(--m-primary-container);
    border: 2px dashed var(--m-primary);
    border-radius: var(--m-radius-xl);
}

/* Task Card - Surface Container Lowest with soft shadow */
.task-card {
    background: var(--m-surface-container-lowest);
    border-radius: var(--m-radius-xl);
    padding: var(--m-space-md);
    margin-bottom: var(--m-space-md);
    box-shadow: var(--m-shadow-card);
    cursor: grab;
    transition: all 0.3s ease;
    border-left: 4px solid var(--m-primary);
}

.task-card:hover {
    box-shadow: var(--m-shadow-card-hover);
    transform: translateY(-2px);
}

.task-card.dragging {
    opacity: 0.5;
    transform: rotate(2deg);
}

/* Priority Badge */
.task-card .priority-badge {
    display: inline-flex;
    align-items: center;
    background: var(--m-tertiary-container);
    color: var(--m-on-tertiary-container);
    border-radius: var(--m-radius-full);
    padding: 0.25rem var(--m-space-md);
    font-size: 0.7rem;
    font-weight: 700;
}

.task-card .priority-badge.high {
    background: var(--m-error-container);
    color: var(--m-on-error-container);
}

/* Assignee Tag */
.task-card .assignee-tag {
    font-size: 0.75rem;
    color: var(--m-on-surface-variant);
}

/* Entity Tag */
.task-card .entity-tag {
    font-size: 0.625rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--m-on-surface-variant);
}

/* Task Title */
.task-card .task-title {
    font-weight: 600;
    color: var(--m-on-surface);
    line-height: 1.4;
    margin: var(--m-space-xs) 0;
}

.task-card:hover .task-title {
    color: var(--m-primary);
}

/* Task Meta */
.task-card .task-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: var(--m-space-sm);
}

/* Complexity Badge */
.task-card .complexity-badge {
    font-size: 0.75rem;
    color: var(--m-on-surface-variant);
    font-weight: 500;
}

/* Grit Modal Overlay */
#grit-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(56, 56, 48, 0.5);
    z-index: 50;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--m-space-lg);
    backdrop-filter: blur(4px);
}

#grit-modal-overlay.active {
    display: flex;
}

/* Grit Modal - Glassmorphism effect */
#grit-modal {
    background: var(--m-surface-container-lowest);
    border-radius: var(--m-radius-2xl);
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--m-shadow-ambient);
}

/* Modal Header */
#grit-modal .modal-header {
    padding: var(--m-space-lg);
    border-bottom: 1px solid var(--m-outline-variant);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#grit-modal .modal-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--m-on-surface);
}

#grit-modal .modal-close {
    font-size: 1.5rem;
    color: var(--m-on-surface-variant);
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--m-space-sm);
    border-radius: var(--m-radius-full);
    transition: all 0.2s ease;
}

#grit-modal .modal-close:hover {
    background: var(--m-surface-container-low);
    color: var(--m-on-surface);
}

/* Slider Group */
.slider-group {
    margin-bottom: var(--m-space-lg);
}

.slider-group label {
    display: flex;
    justify-content: space-between;
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: var(--m-space-sm);
    color: var(--m-on-surface);
}

.slider-group input[type="range"] {
    width: 100%;
    accent-color: var(--m-primary);
    height: 6px;
    border-radius: var(--m-radius-full);
    background: var(--m-surface-container-highest);
    -webkit-appearance: none;
    appearance: none;
}

.slider-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--m-primary);
    cursor: pointer;
    box-shadow: var(--m-shadow-sm);
}

.slider-value {
    font-weight: 700;
    color: var(--m-primary);
}

/* Add Task Form */
#add-task-form {
    display: none;
    padding: var(--m-space-md);
    background: var(--m-surface-container-lowest);
    border-radius: var(--m-radius-xl);
    margin-bottom: var(--m-space-md);
    box-shadow: var(--m-shadow-card);
    border: 1px solid var(--m-outline-variant);
}

#add-task-form.active {
    display: block;
}

#add-task-form input,
#add-task-form select {
    background: var(--m-surface-container-low);
    border: 1px solid var(--m-outline-variant);
    border-radius: var(--m-radius-lg);
    padding: var(--m-space-sm) var(--m-space-md);
    color: var(--m-on-surface);
    font-size: 0.875rem;
    width: 100%;
    transition: all 0.2s ease;
}

#add-task-form input:focus,
#add-task-form select:focus {
    outline: none;
    border-color: var(--m-primary);
    box-shadow: 0 0 0 3px rgba(82, 107, 74, 0.1);
}

#add-task-form input::placeholder {
    color: var(--m-on-surface-variant);
}

/* Primary Button */
.btn-primary {
    background: linear-gradient(135deg, var(--m-primary) 0%, var(--m-primary-dim) 100%);
    color: var(--m-on-primary);
    padding: var(--m-space-sm) var(--m-space-lg);
    border-radius: var(--m-radius-full);
    font-weight: 600;
    font-size: 0.875rem;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--m-shadow-sm);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--m-shadow-md);
}

.btn-primary:active {
    transform: scale(0.98);
}

/* Secondary Button */
.btn-secondary {
    background: var(--m-surface-container-high);
    color: var(--m-on-surface);
    padding: var(--m-space-sm) var(--m-space-lg);
    border-radius: var(--m-radius-full);
    font-weight: 600;
    font-size: 0.875rem;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-secondary:hover {
    background: var(--m-surface-container-highest);
}

/* Ghost Button */
.btn-ghost {
    background: transparent;
    color: var(--m-on-surface-variant);
    padding: var(--m-space-sm) var(--m-space-lg);
    border-radius: var(--m-radius-full);
    font-weight: 500;
    font-size: 0.875rem;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-ghost:hover {
    background: var(--m-surface-container-low);
    color: var(--m-on-surface);
}

/* Empty State */
.kanban-column .empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--m-space-xl);
    color: var(--m-on-surface-variant);
    text-align: center;
}

.kanban-column .empty-state-icon {
    font-size: 2.5rem;
    margin-bottom: var(--m-space-md);
    opacity: 0.5;
}

/* Notification Toast */
.notification-toast {
    position: fixed;
    top: var(--m-space-lg);
    right: var(--m-space-lg);
    background: var(--m-primary);
    color: var(--m-on-primary);
    padding: var(--m-space-md) var(--m-space-lg);
    border-radius: var(--m-radius-xl);
    box-shadow: var(--m-shadow-ambient);
    z-index: 100;
    font-weight: 500;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Print styles */
@media print {
    nav, .no-print, #add-task-btn, #kanban-settings-link { 
        display: none !important; 
    }
    
    .kanban-board {
        flex-direction: column;
        overflow: visible;
        gap: var(--m-space-lg);
    }
    
    .kanban-column {
        flex: none;
        width: 100%;
        max-height: none;
        page-break-inside: avoid;
        margin-bottom: var(--m-space-lg);
        box-shadow: none;
        border: 1px solid var(--m-outline-variant);
    }
    
    .task-card {
        box-shadow: none;
        border: 1px solid var(--m-outline-variant);
        border-left: 4px solid var(--m-primary);
        cursor: default;
        break-inside: avoid;
    }
    
    .task-card::before {
        content: "☐";
        margin-right: var(--m-space-sm);
        font-size: 1.1rem;
    }
    
    .kanban-tasks {
        overflow: visible;
    }
}