/*
 * Task Manager Styles
 * Asana-inspired layout: sidebar + main board/list area
 * Uses Symposium design system variables exclusively (variables.css)
 */

/* ============================================================
   LAYOUT — tasks-mode root
   ============================================================ */

.tasks-mode {
    display: flex;
    height: 100%;
    overflow: hidden;
    background: var(--main-background-color);
    font-family: var(--font-sans);
    color: var(--color-ink);
}

/* ============================================================
   SIDEBAR — project list
   ============================================================ */

.tasks-sidebar {
    width: 150px;
    flex-shrink: 0;
    border-right: var(--border-width) solid var(--border-color);
    background: var(--main-background-color-secondary);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.project-list-view {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.project-list-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    border-bottom: var(--border-width) solid var(--border-color);
    flex-shrink: 0;
}

.project-list-title {
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-ink-lighter);
}

.project-items {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-2) 0;
}

.project-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    cursor: pointer;
    border-radius: 0;
    transition: background var(--transition-fast);
    font-size: var(--text-sm);
    color: var(--color-ink-light);
    user-select: none;
}

.project-item:hover {
    background: var(--main-background-color-third);
    color: var(--color-ink);
}

.project-item.active {
    background: var(--color-accent-subtle);
    color: var(--color-ink);
    font-weight: var(--weight-medium);
}

.project-status-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

.project-item-title {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.project-task-count {
    font-size: var(--text-xs);
    color: var(--color-ink-lighter);
    background: var(--main-background-color-third);
    padding: 1px var(--space-1);
    border-radius: var(--radius-sm);
    min-width: 18px;
    text-align: center;
}

.project-empty {
    padding: var(--space-4);
    font-size: var(--text-sm);
    color: var(--color-ink-lighter);
    text-align: center;
}

.project-list-footer {
    padding: var(--space-2) var(--space-3);
    border-top: var(--border-width) solid var(--border-color);
    flex-shrink: 0;
}

/* ============================================================
   MAIN AREA
   ============================================================ */

.tasks-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 0;
}

.tasks-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-5);
    border-bottom: var(--border-width) solid var(--border-color);
    background: var(--main-background-color-secondary);
    flex-shrink: 0;
    gap: var(--space-4);
}

.tasks-view-switcher {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-shrink: 0;
}

.view-btn {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--color-ink-light);
    font-size: var(--text-sm);
    font-family: var(--font-sans);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.view-btn:hover {
    background: var(--main-background-color-third);
    color: var(--color-ink);
}

.view-btn.active {
    background: var(--color-ink);
    color: var(--color-ink-mix);
    border-color: var(--color-ink);
}

.tasks-content {
    flex: 1;
    overflow: auto;
    padding: var(--space-4);
}

/* ============================================================
   PROJECT DETAIL VIEW — header bar
   ============================================================ */

.project-detail-view {
    flex: 1;
    min-width: 0;
}

.project-detail-empty {
    font-size: var(--text-sm);
    color: var(--color-ink-lighter);
    padding: var(--space-2) 0;
}

.project-detail-top {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.project-detail-title {
    font-size: var(--text-lg);
    font-weight: var(--weight-semibold);
    color: var(--color-ink);
    margin: 0;
    line-height: var(--leading-tight);
}

.project-detail-meta {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.project-dates {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-xs);
    color: var(--color-ink-lighter);
}

.project-progress {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-top: var(--space-2);
}

.progress-bar {
    flex: 1;
    max-width: 200px;
    height: 4px;
    background: var(--main-background-color-third);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--color-success);
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.progress-label {
    font-size: var(--text-xs);
    color: var(--color-ink-lighter);
    white-space: nowrap;
}

.project-detail-actions {
    margin-top: var(--space-2);
}

/* ============================================================
   STATUS & PRIORITY BADGES
   ============================================================ */

.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 2px var(--space-2);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--weight-medium);
    background: var(--main-background-color-third);
    color: var(--color-ink-light);
}

.status-badge.status-active    { background: color-mix(in srgb, var(--color-success) 15%, var(--main-background-color)); color: var(--color-success); }
.status-badge.status-planning  { background: var(--main-background-color-third); color: var(--color-ink-lighter); }
.status-badge.status-hold      { background: color-mix(in srgb, var(--color-cleanup) 15%, var(--main-background-color)); color: var(--color-cleanup); }
.status-badge.status-completed { background: color-mix(in srgb, var(--color-target) 15%, var(--main-background-color)); color: var(--color-target); }
.status-badge.status-archived  { background: var(--main-background-color-third); color: var(--color-ink-lighter); }

.priority-badge {
    display: inline-flex;
    align-items: center;
    padding: 2px var(--space-2);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--weight-medium);
}

.priority-badge.priority-critical,
.priority-pill.priority-critical { color: var(--color-error); }
.priority-badge.priority-high,
.priority-pill.priority-high     { color: var(--color-cleanup); }
.priority-badge.priority-medium,
.priority-pill.priority-medium   { color: var(--color-target); }
.priority-badge.priority-low,
.priority-pill.priority-low      { color: var(--color-ink-lighter); }

/* ============================================================
   BOARD VIEW — Kanban
   ============================================================ */

.task-board {
    display: flex;
    gap: var(--space-4);
    height: 100%;
    overflow-x: auto;
    padding-bottom: var(--space-4);
    align-items: flex-start;
}

.board-column {
    flex: 0 0 240px;
    display: flex;
    flex-direction: column;
    background: var(--main-background-color-secondary);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    max-height: 100%;
}

.column-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-3);
    border-bottom: var(--border-width) solid var(--border-color);
    flex-shrink: 0;
}

.column-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

.column-title {
    flex: 1;
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--color-ink);
}

.column-count {
    font-size: var(--text-xs);
    color: var(--color-ink-lighter);
    background: var(--main-background-color-third);
    padding: 1px var(--space-1);
    border-radius: var(--radius-sm);
    min-width: 18px;
    text-align: center;
}

.column-cards {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-2);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.task-card {
    background: var(--main-background-color);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
    display: flex;
}

.task-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--border-color-strong);
    transform: translateY(-1px);
}

.task-card-priority-bar {
    width: 3px;
    flex-shrink: 0;
}

.task-card-body {
    flex: 1;
    padding: var(--space-2) var(--space-3);
    min-width: 0;
}

.task-card-title {
    font-size: var(--text-sm);
    color: var(--color-ink);
    line-height: var(--leading-normal);
    margin-bottom: var(--space-1);
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

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

.task-priority-badge {
    font-size: var(--text-xs);
    font-weight: var(--weight-medium);
}

.task-due {
    display: flex;
    align-items: center;
    gap: 3px;
    font-size: var(--text-xs);
    color: var(--color-ink-lighter);
}

.task-due.overdue {
    color: var(--color-error);
}

.add-task-btn {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    width: 100%;
    padding: var(--space-2) var(--space-3);
    background: transparent;
    border: none;
    border-top: var(--border-width) solid var(--border-color);
    color: var(--color-ink-lighter);
    font-size: var(--text-xs);
    font-family: var(--font-sans);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: left;
}

.add-task-btn:hover {
    background: var(--main-background-color-third);
    color: var(--color-ink);
}

/* ============================================================
   LIST VIEW — Table
   ============================================================ */

.task-list-view {
    width: 100%;
}

.task-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
}

.task-table thead {
    position: sticky;
    top: 0;
    background: var(--main-background-color-secondary);
    z-index: 1;
}

.task-table th {
    padding: var(--space-2) var(--space-3);
    text-align: left;
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    color: var(--color-ink-lighter);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: var(--border-width) solid var(--border-color);
    white-space: nowrap;
}

.task-table th.sortable {
    cursor: pointer;
    user-select: none;
}

.task-table th.sortable:hover {
    color: var(--color-ink);
}

.task-table td {
    padding: var(--space-2) var(--space-3);
    border-bottom: var(--border-width) solid var(--border-color);
    vertical-align: middle;
}

.task-row:hover td {
    background: var(--main-background-color-secondary);
}

.task-row.task-done .task-row-title {
    text-decoration: line-through;
    color: var(--color-ink-lighter);
}

.col-check { width: 36px; }
.col-title  { min-width: 200px; }
.col-status { width: 140px; }
.col-priority { width: 100px; }
.col-due    { width: 120px; }

.task-row-title {
    cursor: pointer;
    color: var(--color-ink);
    font-weight: var(--weight-medium);
}

.task-row-title:hover {
    text-decoration: underline;
}

.task-done-check {
    cursor: pointer;
    accent-color: var(--color-success);
}

.inline-select {
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--main-background-color);
    color: var(--color-ink);
    font-size: var(--text-xs);
    font-family: var(--font-sans);
    padding: 2px var(--space-1);
    cursor: pointer;
}

.inline-select:focus {
    outline: none;
    border-color: var(--color-ink-lighter);
}

.priority-pill {
    font-size: var(--text-xs);
    font-weight: var(--weight-medium);
}

.col-due.overdue {
    color: var(--color-error);
    font-weight: var(--weight-medium);
}

.task-list-empty {
    padding: var(--space-8);
    text-align: center;
    color: var(--color-ink-lighter);
    font-size: var(--text-sm);
}

/* ============================================================
   TASK DETAIL PANEL — right slide-in
   ============================================================ */

.task-detail-panel {
    width: 360px;
    min-width: 300px;
    max-width: 420px;
    flex-shrink: 0;
    border-left: var(--border-width) solid var(--border-color);
    background: var(--main-background-color-secondary);
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.task-detail-panel-inner {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: var(--space-4);
    gap: var(--space-4);
}

.task-detail-loading {
    padding: var(--space-6);
    text-align: center;
    color: var(--color-ink-lighter);
    font-size: var(--text-sm);
}

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

.task-detail-title {
    flex: 1;
    font-size: var(--text-base);
    font-weight: var(--weight-semibold);
    color: var(--color-ink);
    margin: 0;
    line-height: var(--leading-normal);
    outline: none;
    border-radius: var(--radius-sm);
    padding: var(--space-1);
    min-height: 1.5em;
}

.task-detail-title:focus {
    background: var(--main-background-color);
    box-shadow: 0 0 0 2px var(--border-color-strong);
}

.task-detail-header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    flex-shrink: 0;
}

.task-detail-fields {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.detail-field-row {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.detail-field-label {
    font-size: var(--text-xs);
    font-weight: var(--weight-medium);
    color: var(--color-ink-lighter);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    width: 80px;
    flex-shrink: 0;
}

.detail-select,
.detail-input {
    flex: 1;
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--main-background-color);
    color: var(--color-ink);
    font-size: var(--text-sm);
    font-family: var(--font-sans);
    padding: var(--space-1) var(--space-2);
    transition: border-color var(--transition-fast);
}

.detail-select:focus,
.detail-input:focus {
    outline: none;
    border-color: var(--color-ink-lighter);
}

.task-detail-description {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    flex: 1;
}

.description-area {
    flex: 1;
    min-height: 120px;
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--main-background-color);
    color: var(--color-ink);
    font-size: var(--text-sm);
    font-family: var(--font-sans);
    line-height: var(--leading-relaxed);
    padding: var(--space-3);
    outline: none;
    resize: none;
}

.description-area:focus {
    border-color: var(--color-ink-lighter);
}

.task-detail-footer {
    display: flex;
    gap: var(--space-2);
    padding-top: var(--space-3);
    border-top: var(--border-width) solid var(--border-color);
    flex-shrink: 0;
}

/* ============================================================
   RELATIONSHIP FIELD
   ============================================================ */

.relationship-field {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1);
    align-items: center;
    flex: 1;
}

.relationship-pill {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: 2px var(--space-2);
    background: var(--main-background-color-third);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    color: var(--color-ink-light);
    cursor: default;
}

.relationship-remove {
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    color: var(--color-ink-lighter);
    display: flex;
    align-items: center;
    line-height: 1;
}

.relationship-remove:hover {
    color: var(--color-error);
}

.relationship-empty {
    font-size: var(--text-xs);
    color: var(--color-ink-lighter);
    font-style: italic;
}

/* ============================================================
   TASK / PROJECT CREATE FORM — inline slide-in panel
   Shares .task-detail-panel container styles (width, border, bg)
   ============================================================ */

.task-create-form-inner {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.task-form-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-4) var(--space-3);
    border-bottom: var(--border-width) solid var(--border-color);
    flex-shrink: 0;
}

.task-form-title {
    font-size: var(--text-base);
    font-weight: var(--weight-semibold);
    color: var(--color-ink);
    margin: 0;
    line-height: var(--leading-tight);
}

.task-form-body {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

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

.task-form-label {
    font-size: var(--text-xs);
    font-weight: var(--weight-medium);
    color: var(--color-ink-lighter);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.task-form-label .required {
    color: var(--color-error);
    margin-left: 2px;
}

.task-form-input,
.task-form-select {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--main-background-color);
    color: var(--color-ink);
    font-size: var(--text-sm);
    font-family: var(--font-sans);
    transition: border-color var(--transition-fast);
    box-sizing: border-box;
}

.task-form-input:focus,
.task-form-select:focus {
    outline: none;
    border-color: var(--color-ink-lighter);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--color-ink) 8%, transparent);
}

.task-form-input::placeholder {
    color: var(--color-ink-lighter);
}

.task-form-textarea {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--main-background-color);
    color: var(--color-ink);
    font-size: var(--text-sm);
    font-family: var(--font-sans);
    line-height: var(--leading-relaxed);
    resize: vertical;
    min-height: 80px;
    transition: border-color var(--transition-fast);
    box-sizing: border-box;
}

.task-form-textarea:focus {
    outline: none;
    border-color: var(--color-ink-lighter);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--color-ink) 8%, transparent);
}

.task-form-textarea::placeholder {
    color: var(--color-ink-lighter);
}

/* Two-column row for date pairs */
.task-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
}

/* Project link / tasks display inside the form */
.task-form-project-link {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1);
    align-items: center;
    min-height: 28px;
}

/* Members picker */
.task-form-members-picker {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    align-items: center;
    min-height: 36px;
}

.task-member-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-2);
    background: var(--main-background-color);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-family: var(--font-sans);
    color: var(--color-ink-light);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.task-member-chip:hover {
    border-color: var(--border-color-strong);
    color: var(--color-ink);
}

.task-member-chip.selected {
    background: var(--color-ink);
    border-color: var(--color-ink);
    color: var(--color-ink-mix);
}

.task-member-avatar {
    width: 20px;
    height: 20px;
    border-radius: var(--radius-full);
    object-fit: cover;
    flex-shrink: 0;
}

.task-member-initials {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--main-background-color-third);
    color: var(--color-ink-lighter);
    font-size: 9px;
    font-weight: var(--weight-semibold);
}

.task-member-chip.selected .task-member-initials {
    background: color-mix(in srgb, var(--color-ink-mix) 20%, transparent);
    color: var(--color-ink-mix);
}

.task-member-name {
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Hint text inside form fields */
.task-form-hint {
    font-size: var(--text-xs);
    color: var(--color-ink-lighter);
    font-style: italic;
}

.task-form-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    border-top: var(--border-width) solid var(--border-color);
    flex-shrink: 0;
    background: var(--main-background-color-secondary);
}

/* ============================================================
   BUTTONS (task-specific overrides)
   ============================================================ */

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-4);
    background: var(--color-ink);
    color: var(--color-ink-mix);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-family: var(--font-sans);
    font-weight: var(--weight-medium);
    cursor: pointer;
    transition: opacity var(--transition-fast);
}

.btn-primary:hover { opacity: 0.85; }

.btn-primary.btn-sm {
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-3);
    background: transparent;
    color: var(--color-ink-light);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-family: var(--font-sans);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-ghost:hover {
    background: var(--main-background-color-third);
    color: var(--color-ink);
}

.btn-ghost.btn-sm {
    padding: var(--space-1) var(--space-2);
    font-size: var(--text-xs);
}

.btn-ghost.full-width { width: 100%; justify-content: center; }

.btn-danger {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-3);
    background: transparent;
    color: var(--color-error);
    border: var(--border-width) solid var(--color-error-bg);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-family: var(--font-sans);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-danger:hover {
    background: var(--color-error-bg);
}

.btn-danger.btn-sm {
    padding: var(--space-1) var(--space-2);
    font-size: var(--text-xs);
}

.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--color-ink-lighter);
    cursor: pointer;
    transition: all var(--transition-fast);
    padding: 0;
}

.icon-btn:hover {
    background: var(--main-background-color-third);
    color: var(--color-ink);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 768px) {
    .tasks-sidebar {
        width: 180px;
        min-width: 140px;
    }

    .task-detail-panel {
        position: absolute;
        right: 0;
        top: 0;
        bottom: 0;
        z-index: var(--z-dropdown);
        width: 100%;
        max-width: 360px;
    }

    .board-column {
        flex: 0 0 200px;
    }
}