/*
 * Gantt Chart Styles
 * Includes Frappe Gantt base styles + our customizations
 *
 * Layer order: frappe-gantt < components (our overrides win)
 */

/* ==========================================================================
   Frappe Gantt Base Styles (from CDN, wrapped in layer)
   ========================================================================== */

@layer frappe-gantt {
  :root {
    --g-arrow-color: #1f2937;
    --g-bar-color: #fff;
    --g-bar-border: #fff;
    --g-tick-color-thick: #ededed;
    --g-tick-color: #f3f3f3;
    --g-actions-background: #f3f3f3;
    --g-border-color: #ebeff2;
    --g-text-muted: #7c7c7c;
    --g-text-light: #fff;
    --g-text-dark: #171717;
    --g-progress-color: #dbdbdb;
    --g-handle-color: #37352f;
    --g-weekend-label-color: #dcdce4;
    --g-expected-progress: #c4c4e9;
    --g-header-background: #fff;
    --g-row-color: #fdfdfd;
    --g-row-border-color: #c7c7c7;
    --g-today-highlight: #37352f;
    --g-popup-actions: #ebeff2;
    --g-weekend-highlight-color: #f7f7f7;
  }

  .gantt-container {
    line-height: 14.5px;
    position: relative;
    overflow: auto;
    font-size: 12px;
    height: var(--gv-grid-height);
    width: 100%;
    border-radius: 8px;
  }

  .gantt-container .popup-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    background: #fff;
    box-shadow: 0 10px 24px -3px #0003;
    padding: 10px;
    border-radius: 5px;
    width: max-content;
    z-index: 1000;
  }

  .gantt-container .popup-wrapper .title {
    margin-bottom: 2px;
    color: var(--g-text-dark);
    font-size: 0.85rem;
    font-weight: 650;
    line-height: 15px;
  }

  .gantt-container .popup-wrapper .subtitle {
    color: var(--g-text-dark);
    font-size: 0.8rem;
    margin-bottom: 5px;
  }

  .gantt-container .popup-wrapper .details {
    color: var(--g-text-muted);
    font-size: 0.7rem;
  }

  .gantt-container .popup-wrapper .actions {
    margin-top: 10px;
    margin-left: 3px;
  }

  .gantt-container .popup-wrapper .action-btn {
    border: none;
    padding: 5px 8px;
    background-color: var(--g-popup-actions);
    border-right: 1px solid var(--g-text-light);
  }

  .gantt-container .popup-wrapper .action-btn:hover {
    background-color: brightness(97%);
  }

  .gantt-container .popup-wrapper .action-btn:first-child {
    border-top-left-radius: 4px;
    border-bottom-left-radius: 4px;
  }

  .gantt-container .popup-wrapper .action-btn:last-child {
    border-right: none;
    border-top-right-radius: 4px;
    border-bottom-right-radius: 4px;
  }

  .gantt-container .grid-header {
    height: calc(var(--gv-lower-header-height) + var(--gv-upper-header-height) + 10px);
    background-color: var(--g-header-background);
    position: sticky;
    top: 0;
    left: 0;
    border-bottom: 1px solid var(--g-row-border-color);
    z-index: 1000;
  }

  .gantt-container .lower-text,
  .gantt-container .upper-text {
    text-anchor: middle;
  }

  .gantt-container .upper-header {
    height: var(--gv-upper-header-height);
  }

  .gantt-container .lower-header {
    height: var(--gv-lower-header-height);
  }

  .gantt-container .lower-text {
    font-size: 12px;
    position: absolute;
    width: calc(var(--gv-column-width) * 0.8);
    height: calc(var(--gv-lower-header-height) * 0.8);
    margin: 0 calc(var(--gv-column-width) * 0.1);
    align-content: center;
    text-align: center;
    color: var(--g-text-muted);
  }

  .gantt-container .upper-text {
    position: absolute;
    width: fit-content;
    font-weight: 500;
    font-size: 14px;
    color: var(--g-text-dark);
    height: calc(var(--gv-lower-header-height) * 0.66);
  }

  .gantt-container .current-upper {
    position: sticky;
    left: 0 !important;
    padding-left: 17px;
    background: #fff;
  }

  .gantt-container .side-header {
    position: sticky;
    top: 0;
    right: 0;
    float: right;
    z-index: 1000;
    line-height: 20px;
    font-weight: 400;
    width: max-content;
    margin-left: auto;
    padding-right: 10px;
    padding-top: 10px;
    background: var(--g-header-background);
    display: flex;
  }

  .gantt-container .side-header * {
    transition-property: background-color;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 0.15s;
    background-color: var(--g-actions-background);
    text-align: -webkit-center;
    border-radius: 0.5rem;
    border: none;
    padding: 5px 8px;
    color: var(--g-text-dark);
    font-size: 14px;
    letter-spacing: 0.02em;
    font-weight: 420;
    box-sizing: content-box;
    margin-right: 5px;
  }

  .gantt-container .side-header *:last-child {
    margin-right: 0;
  }

  .gantt-container .side-header *:hover {
    filter: brightness(97.5%);
  }

  .gantt-container .side-header select {
    padding-right: 1.25rem;
    width: 50px;
  }

  .gantt-container .date-range-highlight {
    background-color: var(--g-progress-color);
    border-radius: 12px;
    height: calc(var(--gv-lower-header-height) - 6px);
    top: calc(var(--gv-upper-header-height) + 5px);
    position: absolute;
  }

  .gantt-container .current-highlight {
    position: absolute;
    background: var(--g-today-highlight);
    width: 1px;
    z-index: 999;
  }

  .gantt-container .current-ball-highlight {
    position: absolute;
    background: var(--g-today-highlight);
    z-index: 1001;
    border-radius: 50%;
  }

  .gantt-container .current-date-highlight {
    background: var(--g-today-highlight);
    color: var(--g-text-light);
    border-radius: 5px;
  }

  .gantt-container .holiday-label {
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    z-index: 1000;
    background: --g-weekend-label-color;
    border-radius: 5px;
    padding: 2px 5px;
  }

  .gantt-container .holiday-label.show {
    opacity: 100;
  }

  .gantt-container .extras {
    position: sticky;
    left: 0;
  }

  .gantt-container .extras .adjust {
    position: absolute;
    left: 8px;
    top: calc(var(--gv-grid-height) - 60px);
    background-color: #000000b3;
    color: #fff;
    border: none;
    padding: 8px;
    border-radius: 3px;
  }

  .gantt-container .hide {
    display: none;
  }

  .gantt {
    user-select: none;
    -webkit-user-select: none;
    position: absolute;
  }

  .gantt .grid-background {
    fill: none;
  }

  .gantt .grid-row {
    fill: var(--g-row-color);
  }

  .gantt .row-line {
    stroke: var(--g-border-color);
  }

  .gantt .tick {
    stroke: var(--g-tick-color);
    stroke-width: 0.4;
  }

  .gantt .tick.thick {
    stroke: var(--g-tick-color-thick);
    stroke-width: 0.7;
  }

  .gantt .arrow {
    fill: none;
    stroke: var(--g-arrow-color);
    stroke-width: 1.5;
  }

  .gantt .bar-wrapper .bar {
    fill: var(--g-bar-color);
    stroke: var(--g-bar-border);
    stroke-width: 0;
    transition: stroke-width 0.3s ease;
  }

  .gantt .bar-progress {
    fill: var(--g-progress-color);
    border-radius: 4px;
  }

  .gantt .bar-expected-progress {
    fill: var(--g-expected-progress);
  }

  .gantt .bar-invalid {
    fill: transparent;
    stroke: var(--g-bar-border);
    stroke-width: 1;
    stroke-dasharray: 5;
  }

  :is(.gantt .bar-invalid) ~ .bar-label {
    fill: var(--g-text-light);
  }

  .gantt .bar-label {
    fill: var(--g-text-dark);
    dominant-baseline: central;
    font-family: Helvetica;
    font-size: 13px;
    font-weight: 400;
  }

  .gantt .bar-label.big {
    fill: var(--g-text-dark);
    text-anchor: start;
  }

  .gantt .handle {
    fill: var(--g-handle-color);
    opacity: 0;
    transition: opacity 0.3s ease;
  }

  .gantt .handle.active,
  .gantt .handle.visible {
    cursor: ew-resize;
    opacity: 1;
  }

  .gantt .handle.progress {
    fill: var(--g-text-muted);
  }

  .gantt .bar-wrapper {
    cursor: pointer;
  }

  .gantt .bar-wrapper .bar {
    outline: 1px solid var(--g-row-border-color);
    border-radius: 3px;
  }

  .gantt .bar-wrapper:hover .bar {
    transition: transform 0.3s ease;
  }

  .gantt .bar-wrapper:hover .date-range-highlight {
    display: block;
  }
}

/* ==========================================================================
   Our Customizations (higher priority layer)
   ========================================================================== */

@layer components {
  /* ==========================================================================
     Gantt Page Layout
     ========================================================================== */

  .gantt-page {
    max-width: 100%;
  }

  /* ==========================================================================
     Gantt Toolbar
     ========================================================================== */

  .gantt-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-surface-raised);
  }

  .gantt-toolbar-left,
  .gantt-toolbar-right {
    display: flex;
    align-items: center;
    gap: var(--space-2);
  }

  .gantt-toolbar-center {
    display: flex;
    align-items: center;
  }

  .gantt-count {
    font-size: var(--text-sm);
    color: var(--color-ink-muted);
  }

  /* View Mode Toggle */
  .gantt-view-modes {
    display: flex;
    gap: var(--space-1);
    background: var(--color-border-muted);
    padding: var(--space-0_5);
    border-radius: var(--radius-md);
  }

  .gantt-view-modes .btn {
    background: transparent;
    border: none;
    padding: var(--space-1_5) var(--space-3);
    font-size: var(--text-sm);
    color: var(--color-ink-muted);
    border-radius: var(--radius-sm);
    transition: all 0.15s ease;
  }

  .gantt-view-modes .btn:hover {
    color: var(--color-ink);
  }

  .gantt-view-modes .btn.active {
    background: var(--color-surface);
    color: var(--color-ink);
    box-shadow: var(--shadow-xs);
  }

  /* Save Actions */
  .gantt-save-actions {
    display: flex;
    gap: var(--space-2);
  }

  /* ==========================================================================
     Pending Changes Indicator
     ========================================================================== */

  .gantt-pending-indicator {
    display: flex;
    align-items: center;
    gap: var(--space-1_5);
    padding: var(--space-1) var(--space-2);
    background: var(--color-warning-canvas);
    border: 1px solid var(--color-warning-border);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
  }

  .gantt-pending-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 var(--space-1);
    background: var(--color-warning);
    color: white;
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    border-radius: var(--radius-full);
  }

  .gantt-pending-text {
    color: var(--color-warning);
    font-weight: var(--font-medium);
  }

  .gantt-auto-shifted {
    color: var(--color-ink-muted);
    font-size: var(--text-xs);
  }

  /* ==========================================================================
     Gantt Chart Container
     ========================================================================== */

  .gantt-chart {
    min-height: 400px;
  }

  /* ==========================================================================
     Empty State
     ========================================================================== */

  .gantt-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-16) var(--space-4);
    text-align: center;
  }

  .gantt-empty-icon {
    color: var(--color-ink-muted);
    margin-bottom: var(--space-4);
  }

  .gantt-empty-state h2 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    margin: 0 0 var(--space-2);
  }

  .gantt-empty-state p {
    color: var(--color-ink-muted);
    margin: 0 0 var(--space-1);
  }

  /* ==========================================================================
     Legend
     ========================================================================== */

  .gantt-legend {
    margin-top: var(--space-4);
    padding: var(--space-3) var(--space-4);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
  }

  .gantt-legend h3 {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-ink-muted);
    margin: 0 0 var(--space-2);
  }

  .gantt-legend-items {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
  }

  .gantt-legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
  }

  .gantt-legend-color {
    width: 16px;
    height: 16px;
    border-radius: var(--radius-sm);
  }

  .gantt-legend-todo {
    background: oklch(var(--lch-blue-500));
  }

  .gantt-legend-card {
    background: oklch(var(--lch-green-500));
  }

  .gantt-legend-step {
    background: oklch(var(--lch-amber-500));
  }

  .gantt-legend-completed {
    background: oklch(var(--lch-zinc-400));
  }

  /* ==========================================================================
     Dependency Modal
     ========================================================================== */

  .gantt-dependency-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .gantt-dependency-modal-backdrop {
    position: absolute;
    inset: 0;
    background: oklch(0 0 0 / 0.5);
  }

  .gantt-dependency-modal-content {
    position: relative;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    min-width: 320px;
    max-width: 90vw;
    box-shadow: var(--shadow-xl);
  }

  .gantt-dependency-modal-content h3 {
    margin: 0 0 var(--space-2);
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
  }

  .gantt-dependency-modal-content p {
    margin: 0 0 var(--space-4);
    color: var(--color-ink-muted);
  }

  .gantt-dependency-select,
  .gantt-dependency-type-select {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    color: var(--color-ink);
    font-size: var(--text-base);
  }

  .gantt-dependency-type {
    margin-top: var(--space-3);
  }

  .gantt-dependency-type label {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
  }

  .gantt-dependency-type span {
    font-size: var(--text-sm);
    color: var(--color-ink-muted);
  }

  .gantt-dependency-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-2);
    margin-top: var(--space-6);
  }

  /* ==========================================================================
     Frappe Gantt Overrides - Dark Mode & Theming
     ========================================================================== */

  /* Override Frappe Gantt CSS variables for dark mode support */
  .gantt-container {
    /* Row colors */
    --g-row-color: light-dark(#fdfdfd, oklch(var(--lch-zinc-900)));
    --g-row-border-color: light-dark(#c7c7c7, oklch(var(--lch-zinc-700)));

    /* Header */
    --g-header-background: light-dark(#fff, oklch(var(--lch-zinc-800)));

    /* Grid lines */
    --g-tick-color: light-dark(#f3f3f3, oklch(var(--lch-zinc-800)));
    --g-tick-color-thick: light-dark(#ededed, oklch(var(--lch-zinc-700)));
    --g-border-color: light-dark(#ebeff2, oklch(var(--lch-zinc-700)));

    /* Text colors */
    --g-text-dark: light-dark(#171717, oklch(var(--lch-zinc-200)));
    --g-text-muted: light-dark(#7c7c7c, oklch(var(--lch-zinc-400)));
    --g-text-light: #fff;

    /* Bars and progress */
    --g-bar-color: oklch(var(--lch-blue-500));
    --g-bar-border: oklch(var(--lch-blue-600));
    --g-progress-color: light-dark(#dbdbdb, oklch(var(--lch-zinc-600)));
    --g-expected-progress: light-dark(#c4c4e9, oklch(var(--lch-indigo-700)));

    /* Arrows and handles */
    --g-arrow-color: light-dark(#1f2937, oklch(var(--lch-zinc-400)));
    --g-handle-color: light-dark(#37352f, oklch(var(--lch-zinc-400)));

    /* Today highlight */
    --g-today-highlight: light-dark(#37352f, oklch(var(--lch-zinc-300)));

    /* Actions/UI elements */
    --g-actions-background: light-dark(#f3f3f3, oklch(var(--lch-zinc-700)));
    --g-popup-actions: light-dark(#ebeff2, oklch(var(--lch-zinc-700)));

    /* Weekend */
    --g-weekend-highlight-color: light-dark(#f7f7f7, oklch(var(--lch-zinc-800)));
    --g-weekend-label-color: light-dark(#dcdce4, oklch(var(--lch-zinc-600)));
  }

  /* Container styling */
  .gantt-page .gantt-container {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow-x: auto;
    overflow-y: hidden;
  }

  .gantt {
    background: var(--color-surface);
  }

  /* Grid */
  .gantt .grid-background {
    display: none;
  }

  .gantt .row-highlight {
    fill: light-dark(oklch(var(--lch-zinc-100) / 0.5), oklch(var(--lch-zinc-700) / 0.5));
  }

  /* Header text - ensure font family */
  .gantt-container .lower-text,
  .gantt-container .upper-text {
    font-family: var(--font-sans);
  }

  .gantt-container .upper-text {
    font-weight: var(--font-medium);
  }

  /* Fix hardcoded white backgrounds in Frappe Gantt */
  .gantt-container .current-upper {
    background: var(--g-header-background);
  }

  .gantt-container .popup-wrapper {
    background: var(--color-surface);
  }

  /* Ticks/Lines */
  .gantt .tick {
    stroke: var(--color-border);
  }

  .gantt .tick.thick {
    stroke: var(--color-border-strong);
  }

  .gantt .row-line {
    stroke: var(--color-border-muted);
  }

  /* Header text */
  .gantt .lower-text,
  .gantt .upper-text {
    fill: var(--color-ink-muted);
    font-size: 11px;
    font-family: var(--font-sans);
  }

  .gantt .upper-text {
    font-weight: var(--font-medium);
  }

  /* Today/weekend highlights */
  .gantt .today-highlight,
  .gantt .current-highlight {
    background: oklch(var(--lch-blue-500) / 0.15);
  }

  .gantt .current-date-highlight {
    background: oklch(var(--lch-blue-500) / 0.1);
  }

  .gantt .holiday-highlight {
    opacity: 0.3;
  }

  /* Task bars */
  .gantt .bar {
    fill: oklch(var(--lch-blue-500));
    rx: 4;
    ry: 4;
  }

  .gantt .bar-progress {
    fill: oklch(var(--lch-blue-600));
  }

  .gantt .bar-label {
    fill: white;
    font-size: 12px;
    font-weight: 500;
    font-family: var(--font-sans);
  }

  /* Task type colors */
  .gantt .bar-wrapper.gantt-task-todo .bar {
    fill: oklch(var(--lch-blue-500));
  }

  .gantt .bar-wrapper.gantt-task-todo .bar-progress {
    fill: oklch(var(--lch-blue-600));
  }

  .gantt .bar-wrapper.gantt-task-card .bar {
    fill: oklch(var(--lch-green-500));
  }

  .gantt .bar-wrapper.gantt-task-card .bar-progress {
    fill: oklch(var(--lch-green-600));
  }

  .gantt .bar-wrapper.gantt-task-step .bar {
    fill: oklch(var(--lch-amber-500));
  }

  .gantt .bar-wrapper.gantt-task-step .bar-progress {
    fill: oklch(var(--lch-amber-600));
  }

  /* Completed tasks */
  .gantt .bar-wrapper.gantt-task-completed .bar {
    fill: oklch(var(--lch-zinc-400));
    opacity: 0.7;
  }

  .gantt .bar-wrapper.gantt-task-completed .bar-progress {
    fill: oklch(var(--lch-zinc-500));
  }

  /* Overdue tasks */
  .gantt .bar-wrapper.gantt-task-overdue .bar {
    stroke: oklch(var(--lch-red-500));
    stroke-width: 2px;
  }

  /* Dependency arrows */
  .gantt .arrow {
    stroke: var(--color-ink-muted);
    stroke-width: 1.5px;
    fill: none;
  }

  /* Resize handles */
  .gantt .handle {
    fill: oklch(var(--lch-zinc-600));
    cursor: ew-resize;
    opacity: 0;
    transition: opacity 0.15s ease;
  }

  .gantt .bar-wrapper:hover .handle {
    opacity: 1;
  }

  /* Hide progress handle - we don't use draggable progress */
  .gantt .handle.progress {
    display: none;
  }

  /* Popup styling */
  .gantt-container .popup-wrapper {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    font-family: var(--font-sans);
  }

  .gantt-container .popup-wrapper .title {
    color: var(--g-text-dark);
  }

  .gantt-container .popup-wrapper .subtitle {
    color: var(--g-text-dark);
  }

  .gantt-container .popup-wrapper .details {
    color: var(--g-text-muted);
  }

  .gantt-container .popup-wrapper .action-btn {
    background-color: var(--g-actions-background);
    color: var(--g-text-dark);
  }

  .gantt-popup-details {
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
  }

  .gantt-popup-details div {
    margin-bottom: var(--space-1);
  }

  /* Changed dates display in popup */
  .gantt-dates-changed {
    display: flex;
    flex-direction: column;
    gap: var(--space-0_5);
  }

  .gantt-date-old {
    color: var(--color-ink-muted);
    font-size: var(--text-xs);
  }

  .gantt-date-old s {
    text-decoration: line-through;
  }

  .gantt-date-new {
    color: var(--color-positive);
    font-weight: var(--font-medium);
  }

  /* Side header */
  .gantt-container .side-header {
    background: var(--g-header-background);
  }

  .gantt-container .side-header * {
    background-color: var(--g-actions-background);
    color: var(--g-text-dark);
  }

  /* ==========================================================================
     Drag-to-Connect Dependencies
     ========================================================================== */

  /* Connect handle - circle to the right of bar */
  .gantt .connect-handle {
    fill: oklch(var(--lch-blue-500));
    stroke: white;
    stroke-width: 2;
    cursor: crosshair;
    opacity: 0;
    transition: opacity 0.15s ease;
  }

  /* Show handle when bar-wrapper has hover class (set via JS) */
  .gantt .bar-wrapper.hovered .connect-handle,
  .gantt .bar-wrapper.connecting .connect-handle,
  .gantt .connect-handle.active {
    opacity: 1;
  }

  .gantt .connect-handle.active {
    fill: oklch(var(--lch-blue-600));
  }

  /* Drag line while connecting */
  .gantt .connect-drag-line {
    stroke: oklch(var(--lch-blue-500));
    stroke-width: 2;
    stroke-dasharray: 5, 5;
    fill: none;
    pointer-events: none;
  }

  /* Source bar while dragging */
  .gantt .bar-wrapper.connecting .bar {
    stroke: oklch(var(--lch-blue-500));
    stroke-width: 2;
  }

  /* Target bar highlight */
  .gantt .bar-wrapper.connect-target .bar {
    stroke: oklch(var(--lch-green-500));
    stroke-width: 3;
    filter: drop-shadow(0 0 4px oklch(var(--lch-green-500) / 0.5));
  }

  /* Cursor when connecting */
  body.gantt-connecting {
    cursor: crosshair !important;
  }

  body.gantt-connecting * {
    cursor: crosshair !important;
  }

  /* ==========================================================================
     Dependency Conflict Highlighting
     ========================================================================== */

  /* Conflicting task bars - red pulsing outline */
  .gantt .bar-wrapper.gantt-conflict .bar {
    stroke: oklch(var(--lch-red-500));
    stroke-width: 2px;
    animation: conflict-pulse 2s ease-in-out infinite;
  }

  .gantt .bar-wrapper.gantt-conflict-successor .bar {
    /* Successor (the one starting too early) gets stronger styling */
    stroke-width: 3px;
    filter: drop-shadow(0 0 4px oklch(var(--lch-red-500) / 0.5));
  }

  @keyframes conflict-pulse {
    0%, 100% {
      stroke-opacity: 1;
    }
    50% {
      stroke-opacity: 0.6;
    }
  }

  /* Conflict arrows - make dependency arrows red when violated */
  .gantt .bar-wrapper.gantt-conflict-successor ~ .arrow {
    stroke: oklch(var(--lch-red-500));
    stroke-width: 2px;
  }

  /* Conflicts Panel */
  .gantt-conflicts-panel {
    margin-top: var(--space-4);
    padding: var(--space-4);
    background: var(--color-negative-canvas);
    border: 1px solid var(--color-negative-border);
    border-radius: var(--radius-lg);
  }

  .gantt-conflicts-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
  }

  .gantt-conflicts-header h3 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--color-negative);
    margin: 0;
  }

  .gantt-conflicts-description {
    font-size: var(--text-sm);
    color: var(--color-ink-muted);
    margin: 0 0 var(--space-3);
  }

  .gantt-conflicts-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 22px;
    height: 22px;
    padding: 0 var(--space-1_5);
    background: var(--color-negative);
    color: white;
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    border-radius: var(--radius-full);
  }

  .gantt-conflicts-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
  }

  .conflict-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    background: var(--color-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
  }

  .conflict-icon {
    flex-shrink: 0;
    color: var(--color-negative);
    margin-top: 2px;
  }

  .conflict-details {
    flex: 1;
    min-width: 0;
  }

  .conflict-title {
    font-weight: var(--font-medium);
    color: var(--color-ink);
    font-size: var(--text-sm);
    margin-bottom: var(--space-0_5);
  }

  .conflict-description {
    font-size: var(--text-xs);
    color: var(--color-ink-muted);
  }

  /* Popup conflict styling */
  .gantt-popup-conflict {
    margin-top: var(--space-2);
    padding: var(--space-2);
    background: oklch(var(--lch-red-500) / 0.1);
    border: 1px solid oklch(var(--lch-red-500) / 0.3);
    border-radius: var(--radius-sm);
    color: var(--color-negative);
  }

  .gantt-popup-conflict strong {
    color: var(--color-negative);
  }

  .gantt-popup-conflict-list {
    margin-top: var(--space-1);
    font-size: var(--text-xs);
  }

  /* Save button warning state when conflicts exist */
  .gantt-save-warning {
    position: relative;
  }

  .gantt-save-warning::after {
    content: "";
    position: absolute;
    top: -4px;
    right: -4px;
    width: 10px;
    height: 10px;
    background: var(--color-negative);
    border-radius: 50%;
    border: 2px solid var(--color-surface);
  }

  /* Legend conflict item */
  .gantt-legend-conflict {
    background: transparent;
    border: 2px solid oklch(var(--lch-red-500));
    box-sizing: border-box;
  }
}