:root {
  --label-width: 240px;
  --row-height: 46px;
  --bar-height: 32px;
  --bg: #f5f6f8;
  --panel: #ffffff;
  --panel-alt: #eef0f4;
  --border: #d7dae0;
  --text: #16181d;
  --muted: #5b6472;
  --accent: #3b6fe0;
  --accent-2: #7c5cff;
  --danger: #d1354a;
  --hover-bg: #e2e5ea;
  --print-scale: 1;
}

:root[data-density="narrow"] {
  --row-height: 32px;
  --bar-height: 18px;
}

:root[data-density="wide"] {
  --row-height: 64px;
  --bar-height: 32px;
}

:root[data-theme="dark"] {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-alt: #1d212b;
  --border: #2a2f3a;
  --text: #e6e8ec;
  --muted: #8b93a3;
  --accent: #5b8cff;
  --accent-2: #7c5cff;
  --danger: #ff5b6e;
  --hover-bg: #242938;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 10px;
}

.topbar h1 {
  font-size: 18px;
  margin: 0;
  font-weight: 600;
}

#page-title {
  padding: 4px 8px;
  margin: -4px -8px;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.save-status {
  font-size: 12px;
  color: var(--muted);
  min-width: 70px;
  text-align: right;
}

.save-status.saving { color: var(--accent); }
.save-status.error { color: var(--danger); }

.file-status {
  font-size: 12px;
  color: var(--muted);
}

.file-status.connected { color: #5fd68b; }
.file-status.error { color: var(--danger); }

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.banner {
  margin: 16px 24px 0;
  padding: 10px 14px;
  background: #3a2a12;
  border: 1px solid #6b4a1a;
  color: #f0c88a;
  border-radius: 8px;
  font-size: 13px;
}

.empty-state {
  padding: 60px 24px;
  text-align: center;
  color: var(--text);
}

.empty-state p { margin: 6px 0; }
.empty-state .muted { color: var(--muted); font-size: 13px; max-width: 480px; margin: 6px auto; }
.empty-state code {
  background: var(--panel-alt);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.btn {
  border: 1px solid var(--border);
  background: var(--panel-alt);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
}

.btn:hover { border-color: var(--accent); }

.btn.active {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}

.btn-green {
  background: #2f9e52;
  border-color: #2f9e52;
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
}

.btn-green:hover {
  border-color: #27853f;
  background: #27853f;
}

.dropdown {
  position: relative;
  display: inline-flex;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 140px;
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
  display: flex;
  flex-direction: column;
  padding: 4px;
  z-index: 50;
}

.dropdown-menu[hidden] {
  display: none;
}

.dropdown-item {
  border: none;
  background: transparent;
  color: var(--text);
  padding: 8px 10px;
  font-size: 13px;
  text-align: left;
  border-radius: 4px;
  cursor: pointer;
  white-space: nowrap;
}

.dropdown-item:hover {
  background: var(--accent);
  color: #fff;
}

.dropdown-item:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.view-toggle {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}

.view-btn {
  background: var(--panel-alt);
  color: var(--text);
  border: none;
  padding: 8px 12px;
  font-size: 13px;
  cursor: pointer;
}

.view-btn + .view-btn { border-left: 1px solid var(--border); }

.view-btn:hover { background: var(--hover-bg); }

.view-btn.active {
  background: var(--accent);
  color: #fff;
}

.zoom-toggle {
  display: flex;
  align-items: center;
  gap: 2px;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}

.zoom-btn {
  background: var(--panel-alt);
  color: var(--text);
  border: none;
  width: 28px;
  height: 34px;
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
}

.zoom-btn:hover:not(:disabled) { background: var(--hover-bg); }

.zoom-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.zoom-level {
  font-size: 12px;
  color: var(--muted);
  padding: 0 8px;
  min-width: 40px;
  text-align: center;
  user-select: none;
}

.timeline-start-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.timeline-start-group label {
  font-size: 12px;
  color: var(--muted);
}

.timeline-start-input {
  padding: 7px 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--panel-alt);
  color: var(--text);
  font-size: 13px;
}

.gantt-wrap {
  padding: 0 24px 24px;
  overflow-x: auto;
  overflow-y: auto;
  flex: 1 1 auto;
  min-height: 0;
}

.gantt {
  display: inline-block;
  min-width: 100%;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  position: relative;
  /* No overflow:hidden here — that would make .gantt itself the sticky
     scrollport instead of .gantt-wrap, breaking the frozen label column. */
}

.today-line {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 0;
  border-left: 2px dotted var(--accent);
  z-index: 6;
  pointer-events: none;
}

.gantt-header-row {
  display: flex;
  border-bottom: 1px solid var(--border);
  background: var(--panel-alt);
  border-top-left-radius: 10px;
  border-top-right-radius: 10px;
  position: sticky;
  top: 0;
  z-index: 4;
}

.label-col {
  width: var(--label-width);
  min-width: var(--label-width);
  padding: 10px 12px 10px 4px;
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  gap: 6px;
  border-right: 1px solid var(--border);
  position: sticky;
  left: 0;
  z-index: 3;
  background: var(--panel-alt);
  border-top-left-radius: 10px;
}

.add-task-btn {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin: 0 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--panel);
  color: var(--text);
  font-size: 13px;
  line-height: 1;
  padding: 0;
  cursor: pointer;
}

.add-task-btn:hover { border-color: var(--accent); color: var(--accent); }

.add-task-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.col-resize-handle {
  position: absolute;
  top: 0;
  right: -4px;
  width: 8px;
  height: 100%;
  cursor: col-resize;
  z-index: 5;
  touch-action: none;
}

.col-resize-handle:hover,
.col-resize-handle.active {
  background: var(--accent);
  opacity: 0.5;
}

.timeline-track {
  position: relative;
  display: flex;
}

.timeline-header {
  height: 40px;
}

/* Column cells are sized individually in JS (week/month/quarter widths differ
   by real calendar length), so only the shared box model lives here. */
.grid-col {
  flex: 0 0 auto;
  border-right: 1px solid var(--border);
  box-sizing: border-box;
}

.sprint-col {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 0 4px;
  font-size: 12px;
  color: var(--muted);
  font-weight: 600;
  text-align: left;
  white-space: nowrap;
  overflow: hidden;
}

.task-rows {
  position: relative;
}

.task-row {
  display: flex;
  border-bottom: 1px solid var(--border);
  height: var(--row-height);
  position: relative;
}

.task-row:last-child { border-bottom: none; }
.task-row:last-child .task-label { border-bottom-left-radius: 10px; }

.task-row.dragging {
  z-index: 50;
  box-shadow: 0 6px 18px rgba(0,0,0,0.45);
  background: var(--panel-alt);
}

.task-label {
  width: var(--label-width);
  min-width: var(--label-width);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 6px 0 4px;
  border-right: 1px solid var(--border);
  position: sticky;
  left: 0;
  z-index: 2;
  background: var(--panel);
}

.phase-icon {
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin: 0 2px;
  display: block;
}

:root[data-theme="dark"] .phase-icon {
  filter: invert(1) brightness(1.7);
}

.task-name {
  flex: 1;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text);
  font-size: 13px;
  padding: 5px 6px;
  border-radius: 4px;
  min-width: 0;
}

.task-name:hover, .task-name:focus {
  border-color: var(--border);
  background: var(--panel);
  outline: none;
}

.edit-btn {
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 13px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
}

.edit-btn:hover { color: var(--accent); }

.delete-btn {
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 16px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
}

.delete-btn:hover { color: var(--danger); }

.row-track {
  position: relative;
  flex: 1;
  display: flex;
}

.bar {
  position: absolute;
  top: calc((var(--row-height) - var(--bar-height)) / 2);
  height: var(--bar-height);
  border-radius: 6px;
  background: var(--accent);
  display: flex;
  align-items: center;
  padding: 0 10px;
  cursor: grab;
  user-select: none;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

.bar:active { cursor: grabbing; }

.bar.dragging {
  opacity: 0.95;
  box-shadow: 0 4px 14px rgba(0,0,0,0.5);
}

.bar-label {
  flex: 1;
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  pointer-events: none;
}

.resize-handle {
  position: absolute;
  top: 0;
  width: 10px;
  height: 100%;
  cursor: ew-resize;
}

.resize-handle.left { left: 0; }
.resize-handle.right { right: 0; }

.resize-handle:hover {
  background: rgba(255,255,255,0.2);
}

.edit-dialog {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  width: 320px;
  max-width: 90vw;
}

.edit-dialog::backdrop {
  background: rgba(0, 0, 0, 0.55);
}

.edit-dialog h2 {
  margin: 0 0 14px;
  font-size: 16px;
}

.edit-dialog label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 12px;
}

.edit-dialog input[type="text"],
.edit-dialog input[type="date"],
.edit-dialog input[type="number"],
.edit-dialog select {
  display: block;
  width: 100%;
  margin-top: 4px;
  padding: 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--panel-alt);
  color: var(--text);
  font-size: 13px;
}

.edit-dialog input[type="color"] {
  display: block;
  margin-top: 4px;
  width: 100%;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--panel-alt);
  padding: 2px;
  cursor: pointer;
}

.color-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: -4px 0 12px;
}

.color-swatch {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1px solid var(--border);
  cursor: pointer;
  padding: 0;
}

.color-swatch:hover,
.color-swatch:focus-visible {
  transform: scale(1.12);
  outline: 2px solid var(--text);
  outline-offset: 2px;
}

.edit-dialog-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}

.edit-dialog-actions-right {
  display: flex;
  gap: 8px;
}

.btn-danger {
  background: transparent;
  border-color: var(--danger);
  color: var(--danger);
}

.btn-danger:hover {
  background: var(--danger);
  color: #fff;
}

.display-dialog {
  width: 280px;
}

.display-group {
  margin-bottom: 14px;
}

.display-group-label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}

.display-group .view-toggle {
  width: fit-content;
}

.display-group .view-btn {
  flex: 1;
}

.filter-dialog {
  width: 360px;
}

.filter-hint {
  margin: -6px 0 14px;
  font-size: 12px;
  color: var(--muted);
}

.filter-groups {
  display: flex;
  gap: 20px;
  margin-bottom: 14px;
}

.filter-group {
  flex: 1;
  min-width: 0;
}

.filter-tag-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 260px;
  overflow-y: auto;
}

.filter-option-btn {
  text-align: left;
  background: var(--panel-alt);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 13px;
  cursor: pointer;
}

.filter-option-btn:hover { background: var(--hover-bg); }

.filter-option-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.filter-color-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-content: flex-start;
}

.filter-empty {
  font-size: 12px;
  color: var(--muted);
}

.filter-color-swatch.selected {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.tags-dialog {
  width: 360px;
}

.tags-list {
  list-style: none;
  margin: 0 0 12px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 300px;
  overflow-y: auto;
}

.tags-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.tags-item input[type="text"] {
  flex: 1;
  padding: 6px 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--panel-alt);
  color: var(--text);
  font-size: 13px;
}

.tags-item .delete-btn {
  font-size: 18px;
}

.tags-add-form {
  display: flex;
  gap: 6px;
  margin-bottom: 4px;
}

.tags-add-form input[type="text"] {
  flex: 1;
  padding: 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--panel-alt);
  color: var(--text);
  font-size: 13px;
}

.cleanup-dialog {
  width: 380px;
}

.cleanup-warning {
  margin: -6px 0 10px;
  font-size: 13px;
  color: var(--danger);
}

.cleanup-task-list {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 300px;
  overflow-y: auto;
}

.cleanup-task-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 13px;
}

.cleanup-task-item .cleanup-task-dates {
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

@media print {
  @page {
    size: landscape;
    margin: 10mm;
  }

  :root {
    --bg: #ffffff;
    --panel: #ffffff;
    --panel-alt: #f4f5f7;
    --border: #d7dae0;
    --text: #16181d;
    --muted: #5b6472;
  }

  * {
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
    color-adjust: exact !important;
  }

  html, body { height: auto; }

  body { background: #fff; display: block; }

  .topbar, .banner, #empty-state { display: none !important; }

  .gantt-wrap { padding: 0; overflow: visible; flex: none; }

  .gantt {
    border: none;
    zoom: var(--print-scale, 1);
  }

  .delete-btn, .edit-btn, .add-task-btn, .resize-handle, .col-resize-handle { display: none !important; }
}