/* kanban.css — Phase 7: Kanban board layout + card styles */

/* ---- Board shell ---- */
.board {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.board__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-6);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
}

.board__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

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

.board__actions {
    display: flex;
    gap: var(--space-2);
    align-items: center;
}

.board__tabs {
    display: flex;
    gap: var(--space-1);
    padding: var(--space-3) var(--space-6);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
}

.board__tab {
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
    background: none;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    text-decoration: none;
}

.board__tab:hover {
    background: var(--color-bg-subtle);
    color: var(--color-text);
}

.board__tab--active {
    color: var(--color-accent);
    background: color-mix(in srgb, var(--color-accent) 10%, transparent);
}

/* ---- Columns scroll container ---- */
.board__columns {
    display: flex;
    flex: 1;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-6);
    overflow-x: auto;
    overflow-y: hidden;
    align-items: flex-start;
}

/* ---- Single column ---- */
.board__col {
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    width: 280px;
    max-height: 100%;
    background: var(--color-bg-subtle);
    border-radius: 10px;
    overflow: hidden;
}

.board__col-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    flex-shrink: 0;
}

.board__col-label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
}

.board__col-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.board__col-count {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-normal);
    color: var(--color-text-secondary);
    background: var(--color-border);
    border-radius: 10px;
    padding: 0 var(--space-2);
    min-width: 20px;
    text-align: center;
}

.board__col-add {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: 1px solid transparent;
    border-radius: 6px;
    cursor: pointer;
    color: var(--color-text-secondary);
    font-size: 18px;
    line-height: 1;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.board__col-add:hover {
    background: var(--color-surface);
    border-color: var(--color-border);
    color: var(--color-text);
}

.board__col-cards {
    flex: 1;
    overflow-y: auto;
    padding: 0 var(--space-3) var(--space-3);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    min-height: 80px;
}

/* ---- Drag-over state ---- */
.board__col--drag-over .board__col-cards {
    background: color-mix(in srgb, var(--color-accent) 6%, transparent);
    border-radius: 8px;
    outline: 2px dashed var(--color-accent-subtle);
    outline-offset: -2px;
}

/* ---- Task card ---- */
.task-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: var(--space-3);
    cursor: grab;
    box-shadow: var(--card-shadow);
    transition: box-shadow 0.15s, border-color 0.15s, transform 0.1s;
    user-select: none;
}

.task-card:hover {
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.12);
    border-color: var(--color-border-strong);
}

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

.task-card--dragging {
    opacity: 0.5;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.18);
    transform: rotate(1deg);
}

/* ---- Card layout ---- */
.task-card__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
}

.task-card__title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    line-height: var(--line-height-tight);
    flex: 1;
    cursor: pointer;
}

.task-card__title:hover {
    color: var(--color-accent);
}

.task-card__priority {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 4px;
}

.task-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: var(--space-2);
}

.task-card__meta {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.task-card__id {
    font-size: 11px;
    color: var(--color-text-disabled);
    font-family: monospace;
}

.task-card__due {
    font-size: 11px;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: 3px;
}

.task-card__due--overdue {
    color: var(--color-danger);
    font-weight: var(--font-weight-semibold);
}

.task-card__due--soon {
    color: var(--orange-500);
}

/* ---- Priority dots ---- */
.priority--low      { background: var(--priority-low); }
.priority--medium   { background: var(--priority-medium); }
.priority--high     { background: var(--priority-high); }
.priority--critical { background: var(--priority-critical); }

/* ---- Status column dot colours ---- */
.col-dot--todo        { background: var(--status-todo); }
.col-dot--in_progress { background: var(--status-in-progress); }
.col-dot--in_review   { background: var(--status-in-review); }
.col-dot--done        { background: var(--status-done); }
.col-dot--blocked     { background: var(--status-blocked); }

/* ---- Task create form (inline at bottom of column) ---- */
.task-create-form {
    background: var(--color-surface);
    border: 1px solid var(--color-border-strong);
    border-radius: 8px;
    padding: var(--space-3);
    margin: 0 var(--space-3) var(--space-3);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    flex-shrink: 0;
}

.task-create-form__input {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 6px;
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-sm);
    font-family: inherit;
    color: var(--color-text);
    resize: none;
    min-height: 60px;
}

.task-create-form__input:focus {
    outline: 2px solid var(--color-accent-subtle);
    outline-offset: 1px;
    border-color: var(--color-accent);
}

.task-create-form__actions {
    display: flex;
    gap: var(--space-2);
    justify-content: flex-end;
}

/* ---- Task detail modal ---- */
.task-modal {
    width: 560px;
    max-width: 100%;
    padding: var(--space-6);
    background: var(--color-surface);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.task-modal__header {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
}

.task-modal__title-wrap {
    flex: 1;
}

.task-modal__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    margin-bottom: var(--space-2);
    color: var(--color-text);
}

.task-modal__close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    color: var(--color-text-secondary);
    font-size: 18px;
    flex-shrink: 0;
    transition: background 0.15s;
}

.task-modal__close:hover {
    background: var(--color-bg-subtle);
    color: var(--color-text);
}

.task-modal__badges {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px var(--space-2);
    border-radius: 10px;
    font-size: 12px;
    font-weight: var(--font-weight-semibold);
    background: var(--color-bg-subtle);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}

.badge--priority-low      { color: var(--gray-500); }
.badge--priority-medium   { color: var(--brand-blue-500); border-color: var(--brand-blue-400); }
.badge--priority-high     { color: var(--orange-500); border-color: var(--orange-500); }
.badge--priority-critical { color: var(--red-500); border-color: var(--red-500); }

.badge--status-todo        { color: var(--gray-500); }
.badge--status-in_progress { color: var(--brand-blue-500); border-color: var(--brand-blue-400); }
.badge--status-in_review   { color: #b45309; border-color: var(--yellow-400); }
.badge--status-done        { color: #15803d; border-color: var(--green-500); }
.badge--status-blocked     { color: var(--red-500); border-color: var(--red-500); }

.task-modal__body {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.task-modal__field label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-1);
}

.task-modal__description {
    font-size: var(--font-size-sm);
    color: var(--color-text);
    line-height: var(--line-height-normal);
    white-space: pre-wrap;
    background: var(--color-bg-subtle);
    border-radius: 6px;
    padding: var(--space-3);
}

.task-modal__description--empty {
    color: var(--color-text-disabled);
    font-style: italic;
}

.task-modal__row {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.task-modal__row .task-modal__field {
    min-width: 120px;
}

.task-modal__assignee {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-text);
}

.task-modal__footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-2);
    border-top: 1px solid var(--color-border);
}

.task-modal__delete-btn {
    background: none;
    border: none;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    padding: var(--space-2);
    border-radius: 6px;
    transition: background 0.15s, color 0.15s;
}

.task-modal__delete-btn:hover {
    background: color-mix(in srgb, var(--color-danger) 10%, transparent);
    color: var(--color-danger);
}

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    border-radius: 6px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    border: 1px solid transparent;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
    text-decoration: none;
    white-space: nowrap;
}

.btn--primary {
    background: var(--btn-bg);
    color: var(--btn-text);
    border-color: var(--btn-bg);
}

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

.btn--ghost {
    background: none;
    color: var(--color-text-secondary);
    border-color: var(--color-border);
}

.btn--ghost:hover {
    background: var(--color-bg-subtle);
    color: var(--color-text);
}

.btn--sm {
    padding: var(--space-1) var(--space-3);
    font-size: 12px;
}

/* ---- Projects list ---- */
.projects-page {
    padding: var(--space-6);
    max-width: 900px;
    margin: 0 auto;
}

.projects-page__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-6);
}

.projects-page__heading {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--space-4);
}

.project-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: var(--space-5);
    cursor: pointer;
    text-decoration: none;
    display: block;
    transition: box-shadow 0.15s, border-color 0.15s;
    box-shadow: var(--card-shadow);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--project-color, var(--color-accent));
}

.project-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-color: var(--color-border-strong);
    text-decoration: none;
}

.project-card__title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    margin-bottom: var(--space-2);
    line-height: var(--line-height-tight);
}

.project-card__description {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-normal);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: var(--space-4);
}

.project-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.project-card__status {
    font-size: 11px;
    font-weight: var(--font-weight-semibold);
    padding: 2px var(--space-2);
    border-radius: 10px;
    background: var(--color-bg-subtle);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.project-card__dates {
    font-size: 11px;
    color: var(--color-text-disabled);
}

/* ---- Create project modal ---- */
.create-project-modal {
    width: 480px;
    max-width: 100%;
    padding: var(--space-6);
    background: var(--color-surface);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.create-project-modal__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.form-field label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
}

.form-field input,
.form-field textarea,
.form-field select {
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 6px;
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-sm);
    font-family: inherit;
    color: var(--color-text);
    width: 100%;
}

.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
    outline: 2px solid var(--color-accent-subtle);
    outline-offset: 1px;
    border-color: var(--color-accent);
}

.form-field textarea {
    resize: vertical;
    min-height: 80px;
}

.create-project-modal__actions {
    display: flex;
    gap: var(--space-2);
    justify-content: flex-end;
}

/* ---- Mobile responsive: kanban columns ---- */
@media (max-width: 639px) {
    .board__header {
        padding: var(--space-3) var(--space-4);
        flex-wrap: wrap;
        gap: var(--space-2);
    }

    .board__title {
        font-size: var(--font-size-base);
    }

    .board__tabs {
        padding: var(--space-2) var(--space-4);
        overflow-x: auto;
    }

    .board__columns {
        padding: var(--space-3) var(--space-3);
        gap: var(--space-3);
    }

    .board__col {
        width: 220px;
    }

    .board__col-header {
        padding: var(--space-2) var(--space-3);
    }
}

/* ---- Loading / empty / error states ---- */
.state-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-16);
    text-align: center;
    color: var(--color-text-secondary);
    gap: var(--space-3);
}

.state-box__icon {
    font-size: 36px;
    opacity: 0.4;
}

.state-box__heading {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
}

.state-box__body {
    font-size: var(--font-size-sm);
    max-width: 300px;
}