.eui-gantt {
  display: flex;
  flex-direction: column;
  width: 100%;
  min-height: 200px;
  border: 1px solid var(--eui-border-subtle);
  border-radius: var(--eui-radius-md);
  background-color: var(--eui-bg);
  color: var(--eui-text);
  font-family: var(--eui-font-family);
  font-size: 13px;
  overflow: hidden;
  position: relative;
}

.eui-gantt-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  border-bottom: 1px solid var(--eui-border-subtle);
  background-color: var(--eui-bg-subtle);
  flex-shrink: 0;
  gap: 8px;
  min-height: 38px;
}

.eui-gantt-toolbar-left,
.eui-gantt-toolbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.eui-gantt-view-switcher {
  display: flex;
  border: 1px solid var(--eui-border);
  border-radius: var(--eui-radius-sm);
  overflow: hidden;
}

.eui-gantt-view-btn {
  padding: 4px 12px;
  border: none;
  background: transparent;
  color: var(--eui-text-muted);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.15s, color 0.15s;
  white-space: nowrap;
  font-family: var(--eui-font-family);
}
.eui-gantt-view-btn:not(:last-child) {
  border-right: 1px solid var(--eui-border);
}
.eui-gantt-view-btn:hover {
  background-color: var(--eui-bg-hover);
  color: var(--eui-text);
}
.eui-gantt-view-btn.active {
  background-color: var(--eui-primary);
  color: var(--eui-text-on-primary);
}

.eui-gantt-today-btn {
  padding: 4px 12px;
  border: 1px solid var(--eui-border);
  border-radius: var(--eui-radius-sm);
  background: transparent;
  color: var(--eui-primary);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.15s, color 0.15s;
  font-family: var(--eui-font-family);
}
.eui-gantt-today-btn:hover {
  background-color: var(--eui-primary-subtle);
}

.eui-gantt-body {
  display: flex;
  flex: 1;
  overflow: hidden;
  min-height: 0;
}
.eui-gantt-body > .eui-splitter {
  flex: 1;
  min-height: 0;
  height: 100%;
}
.eui-gantt-body .eui-splitter-panel {
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.eui-gantt-fields {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  width: 100%;
  height: 100%;
  border-right: 1px solid var(--eui-border-subtle);
}

.eui-gantt-fields-header {
  border-bottom: 1px solid var(--eui-border-subtle);
  background-color: var(--eui-bg-subtle);
  overflow: hidden;
  flex-shrink: 0;
  box-sizing: border-box;
  display: flex;
  align-items: center;
}

.eui-gantt-fields-header-row {
  display: flex;
  align-items: stretch;
}

.eui-gantt-fields-header-cell {
  display: flex;
  align-items: center;
  padding: 8px 12px;
  font-weight: 600;
  font-size: 12px;
  color: var(--eui-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  border-right: 1px solid var(--eui-border-subtle);
  flex-shrink: 0;
}
.eui-gantt-fields-header-cell:last-child {
  border-right: none;
}

.eui-gantt-fields-body {
  flex: 1;
  overflow-x: hidden;
  overflow-y: hidden;
}

.eui-gantt-fields-row {
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--eui-border-subtle);
  box-sizing: border-box;
  transition: background-color 0.1s;
}
.eui-gantt-fields-row:hover {
  background-color: var(--eui-bg-hover);
}

.eui-gantt-fields-cell {
  display: flex;
  align-items: center;
  padding: 4px 8px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  border-right: 1px solid var(--eui-border-subtle);
  flex-shrink: 0;
  height: 100%;
  box-sizing: border-box;
}
.eui-gantt-fields-cell:last-child {
  border-right: none;
}

.eui-gantt-fields-cell-content {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
  min-width: 0;
}

.eui-gantt-toggle-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: var(--eui-radius-sm);
  color: var(--eui-text-muted);
  padding: 0;
  margin-right: 4px;
  flex-shrink: 0;
  transition: background-color 0.15s, color 0.15s, transform 0.2s;
}
.eui-gantt-toggle-btn:hover {
  background-color: var(--eui-bg-hover);
  color: var(--eui-text);
}
.eui-gantt-toggle-btn.collapsed svg {
  transition: transform 0.2s ease;
}

.eui-gantt-toggle-spacer {
  display: inline-block;
  width: 22px;
  flex-shrink: 0;
}

.eui-gantt-timeline {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow: hidden;
  min-width: 0;
}

.eui-gantt-timeline-header {
  border-bottom: 1px solid var(--eui-border-subtle);
  background-color: var(--eui-bg-subtle);
  overflow: hidden;
  flex-shrink: 0;
  box-sizing: border-box;
}

.eui-gantt-timeline-header-primary {
  display: flex;
  border-bottom: 1px solid var(--eui-border-subtle);
}

.eui-gantt-header-group-cell {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px 4px;
  font-weight: 600;
  font-size: 12px;
  color: var(--eui-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  border-right: 1px solid var(--eui-border-subtle);
  flex-shrink: 0;
}
.eui-gantt-header-group-cell:last-child {
  border-right: none;
}

.eui-gantt-timeline-header-secondary {
  display: flex;
}

.eui-gantt-header-day-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2px 0;
  font-size: 11px;
  color: var(--eui-text-muted);
  border-right: 1px solid var(--eui-border-subtle);
  flex-shrink: 0;
}
.eui-gantt-header-day-cell:last-child {
  border-right: none;
}
.eui-gantt-header-day-cell.is-weekend {
  color: #ef4444;
}
.eui-gantt-header-day-cell.is-today {
  color: var(--eui-primary);
  font-weight: 700;
}
.eui-gantt-header-day-cell.is-holiday {
  color: #f97316;
}

.eui-gantt-day-num {
  font-weight: 500;
  font-size: 12px;
  line-height: 1.2;
}

.eui-gantt-day-name {
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  line-height: 1.2;
}

.eui-gantt-header-secondary-cell {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px 4px;
  font-size: 11px;
  font-weight: 500;
  color: var(--eui-text-muted);
  border-right: 1px solid var(--eui-border-subtle);
  flex-shrink: 0;
}
.eui-gantt-header-secondary-cell:last-child {
  border-right: none;
}

.eui-gantt-timeline-body {
  flex: 1;
  overflow: auto;
  position: relative;
  scrollbar-width: thin;
}
.eui-gantt-timeline-body::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
.eui-gantt-timeline-body::-webkit-scrollbar-thumb {
  background-color: var(--eui-border);
  border-radius: 4px;
}
.eui-gantt-timeline-body::-webkit-scrollbar-corner {
  background-color: transparent;
}

.eui-gantt-timeline-canvas {
  position: relative;
  min-height: 100%;
}

.eui-gantt-grid {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
}

.eui-gantt-grid-cell {
  position: absolute;
  top: 0;
  border-right: 1px solid var(--eui-border-subtle);
  box-sizing: border-box;
}

.eui-gantt-today-line {
  position: absolute;
  top: 0;
  width: 2px;
  height: 100%;
  background-color: var(--eui-primary);
  z-index: 5;
  pointer-events: none;
}
.eui-gantt-today-line::before {
  content: "";
  position: absolute;
  top: 0;
  left: -4px;
  width: 10px;
  height: 10px;
  background-color: var(--eui-primary);
  border-radius: 50%;
}

.eui-gantt-row-line {
  position: absolute;
  left: 0;
  height: 1px;
  background-color: var(--eui-border-subtle);
  pointer-events: none;
}

.eui-gantt-taskbar {
  position: absolute;
  border-radius: var(--eui-radius-sm);
  background-color: var(--eui-primary);
  cursor: default;
  display: flex;
  align-items: center;
  overflow: hidden;
  z-index: 3;
  transition: box-shadow 0.15s, filter 0.15s;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}
.eui-gantt-taskbar.is-editable {
  cursor: grab;
}
.eui-gantt-taskbar.is-editable:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.18);
  filter: brightness(1.05);
}
.eui-gantt-taskbar.is-editable:hover .eui-gantt-taskbar-handle {
  opacity: 1;
}
.eui-gantt-taskbar.is-dragging {
  cursor: grabbing;
  z-index: 10;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  opacity: 0.9;
}
.eui-gantt-taskbar.is-group {
  background-color: var(--eui-text-muted);
  border-radius: 0;
  height: auto;
}
.eui-gantt-taskbar.is-group .eui-gantt-taskbar-progress {
  background-color: var(--eui-text);
}
.eui-gantt-taskbar:focus-visible {
  outline: 2px solid var(--eui-primary);
  outline-offset: 2px;
}

.eui-gantt-taskbar-handle {
  position: absolute;
  top: 0;
  width: 8px;
  height: 100%;
  cursor: ew-resize;
  opacity: 0;
  transition: opacity 0.15s, background-color 0.15s;
  z-index: 4;
  display: flex;
  align-items: center;
  justify-content: center;
}
.eui-gantt-taskbar-handle::after {
  content: "";
  width: 2px;
  height: 60%;
  border-radius: 1px;
  background-color: rgba(255, 255, 255, 0.7);
}
.eui-gantt-taskbar-handle:hover {
  background-color: rgba(0, 0, 0, 0.12);
}

.eui-gantt-taskbar-handle-left {
  left: 0;
  border-radius: var(--eui-radius-sm) 0 0 var(--eui-radius-sm);
}

.eui-gantt-taskbar-handle-right {
  right: 0;
  border-radius: 0 var(--eui-radius-sm) var(--eui-radius-sm) 0;
}

.eui-gantt-taskbar-progress {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.15);
  border-radius: var(--eui-radius-sm) 0 0 var(--eui-radius-sm);
  pointer-events: none;
  transition: width 0.2s ease;
}

.eui-gantt-taskbar-content {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
  height: 100%;
  padding: 0 10px;
  z-index: 1;
  overflow: hidden;
}

.eui-gantt-taskbar-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--eui-text-on-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.eui-gantt-group-cap {
  position: absolute;
  bottom: -4px;
  width: 8px;
  height: 4px;
  background-color: inherit;
}

.eui-gantt-group-cap-left {
  left: 0;
  border-radius: 0 0 0 var(--eui-radius-sm);
}

.eui-gantt-group-cap-right {
  right: 0;
  border-radius: 0 0 var(--eui-radius-sm) 0;
}

.eui-gantt-milestone {
  position: absolute;
  background-color: #f59e0b;
  transform: rotate(45deg);
  z-index: 3;
  cursor: pointer;
  transition: box-shadow 0.15s, filter 0.15s;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
}
.eui-gantt-milestone:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
  filter: brightness(1.1);
}
.eui-gantt-milestone.is-dragging {
  z-index: 10;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  opacity: 0.9;
}
.eui-gantt-milestone:focus-visible {
  outline: 2px solid var(--eui-primary);
  outline-offset: 4px;
}

.eui-gantt-markers {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  pointer-events: none;
  z-index: 6;
}

.eui-gantt-marker {
  position: absolute;
  top: 0;
  height: 100%;
  border-left: 2px dashed #ef4444;
}

.eui-gantt-marker-label {
  position: absolute;
  top: 6px;
  left: 10px;
  padding: 3px 10px;
  font-size: 11px;
  font-weight: 500;
  white-space: nowrap;
  border-radius: 10px;
  background-color: #fecaca;
  color: #ef4444;
  pointer-events: auto;
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.eui-gantt-marker-arrow {
  position: absolute;
  left: -7px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-right: 7px solid #fecaca;
}

.eui-gantt-dependencies {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 2;
  overflow: visible;
}

.eui-gantt-tooltip {
  position: fixed;
  z-index: 9999;
  background-color: var(--eui-bg);
  border: 1px solid var(--eui-border);
  border-radius: var(--eui-radius-md);
  padding: 10px 14px;
  box-shadow: var(--eui-shadow);
  pointer-events: none;
  max-width: 280px;
  font-size: 12px;
  animation: eui-gantt-tooltip-in 0.15s ease;
}

.eui-gantt-tooltip-title {
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--eui-text);
}

.eui-gantt-tooltip-dates {
  color: var(--eui-text-muted);
  margin-bottom: 2px;
}

.eui-gantt-tooltip-progress {
  color: var(--eui-primary);
  font-weight: 500;
}

.eui-gantt-tooltip-assignee {
  color: var(--eui-text-muted);
  margin-top: 2px;
}

@keyframes eui-gantt-tooltip-in {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.eui-gantt-create-preview {
  position: absolute;
  background-color: var(--eui-primary-subtle);
  border: 2px dashed var(--eui-primary);
  border-radius: var(--eui-radius-sm);
  opacity: 0.7;
  pointer-events: none;
  z-index: 8;
}

@media (max-width: 768px) {
  .eui-gantt-toolbar {
    flex-wrap: wrap;
    padding: 4px 8px;
  }
  .eui-gantt-view-btn {
    padding: 3px 8px;
    font-size: 11px;
  }
  .eui-gantt-fields-header-cell {
    padding: 6px 8px;
    font-size: 11px;
  }
  .eui-gantt-taskbar-label {
    font-size: 10px;
  }
}
@media (max-width: 640px) {
  .eui-gantt-body > .eui-splitter .eui-splitter-panel:first-child,
  .eui-gantt-body > .eui-splitter .eui-splitter-gutter {
    display: none;
  }
  .eui-gantt-body > .eui-splitter .eui-splitter-panel:last-child {
    flex: 1 !important;
    width: 100% !important;
  }
}