.gantt-root {
  /* --- Thème (couleurs, typographie) --- */
  --gantt-font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --gantt-font-size: 12px;
  --gantt-bg: #ffffff;
  --gantt-text: #1f2937;
  --gantt-text-muted: #6b7280;
  --gantt-border: #e5e7eb;
  --gantt-row-alt: #f9fafb;
  --gantt-weekend: #f3f4f6;
  --gantt-holiday: #fde8e8;
  --gantt-constraint: #6b7280;
  --gantt-planning-end: #7c3aed;
  --gantt-critical: #b91c1c;
  --gantt-slack: #9ca3af;
  /* Palette commune (tâches, repères, zones : color: 'red' | 'orange' | …) ; repères et zones sans couleur : --gantt-annotation */
  --gantt-color-red: #ef4444;
  --gantt-color-orange: #f97316;
  --gantt-color-amber: #f59e0b;
  --gantt-color-yellow: #eab308;
  --gantt-color-lime: #84cc16;
  --gantt-color-green: #22c55e;
  --gantt-color-teal: #14b8a6;
  --gantt-color-cyan: #06b6d4;
  --gantt-color-blue: #3b82f6;
  --gantt-color-indigo: #6366f1;
  --gantt-color-purple: #a855f7;
  --gantt-color-pink: #ec4899;
  --gantt-annotation: #64748b;
  --gantt-zone-opacity: .1;
  --gantt-annotation-height: 20px;
  --gantt-header-bg: #f3f4f6;
  --gantt-bar-bg: #93c5fd;
  --gantt-bar-stroke: #3b82f6;
  --gantt-progress-bg: #3b82f6;
  --gantt-group-bg: #374151;
  --gantt-milestone-bg: #f59e0b;
  --gantt-link-color: #6b7280;
  --gantt-link-width: 1.5px;
  --gantt-link-selected: #ef4444;
  --gantt-today-color: #ef4444;
  --gantt-selected: #2563eb;
  --gantt-invalid: #ef4444;
  --gantt-bar-radius: 4px;

  /* --- Géométrie (lue par le JS) --- */
  --gantt-row-height: 32px;
  --gantt-bar-height: 18px;
  --gantt-header-height: 48px;
  --gantt-table-width: 420px;
  --gantt-date-col-width: 84px;
  --gantt-duration-col-width: 70px;
  --gantt-wbs-col-width: 48px;
  --gantt-progress-col-width: 108px;
  --gantt-slack-col-width: 74px;
  --gantt-owner-col-width: 116px;
  --gantt-indent: 16px;
  --gantt-link-gap: 10px;
  --gantt-link-radius: 6px;
  --gantt-col-width-day: 28px;
  --gantt-col-width-week: 84px;
  --gantt-col-width-month: 120px;

  position: relative;
  font-family: var(--gantt-font);
  font-size: var(--gantt-font-size);
  color: var(--gantt-text);
}

.gantt-scroll {
  overflow: auto;
  max-height: var(--gantt-max-height, none);
  background: var(--gantt-bg);
  border: 1px solid var(--gantt-border);
  outline: none;
}

/* Couches superposées : le CSS fixe tableau, en-tête et coin au défilement (aucun repositionnement en JS) */
.gantt-canvas { display: grid; width: max-content; }
.gantt-canvas > .gantt-svg { grid-area: 1 / 1; justify-self: start; align-self: start; }
.gantt-svg--table { position: sticky; left: 0; z-index: 2; }
.gantt-svg--header { position: sticky; top: 0; z-index: 3; background: transparent !important; }
.gantt-svg--corner { position: sticky; left: 0; top: 0; z-index: 4; background: transparent !important; }
.gantt-svg--overlay { z-index: 5; pointer-events: none; background: transparent !important; }
.gantt-print-only { display: none; }

.gantt-svg {
  display: block;
  background: var(--gantt-bg);
  font-family: var(--gantt-font);
  font-size: var(--gantt-font-size);
  user-select: none;
  -webkit-user-select: none;
}

/* Grille */
.gantt-row { fill: var(--gantt-bg); }
.gantt-row--alt { fill: var(--gantt-row-alt); }
.gantt-weekend { fill: var(--gantt-weekend); opacity: 0.8; }
.gantt-weekend.gantt-holiday { fill: var(--gantt-holiday); opacity: 1; }
.gantt-gridline { stroke: var(--gantt-border); stroke-width: 1; }
.gantt-today { stroke: var(--gantt-today-color); stroke-width: 1.5; stroke-dasharray: 4 3; }
.gantt-end-line { stroke: var(--gantt-planning-end); stroke-width: 2; stroke-dasharray: 6 3; pointer-events: none; }
.gantt-end-label { fill: var(--gantt-planning-end); font-size: 11px; font-weight: 600; pointer-events: none; }

/* En-tête */
.gantt-header-bg { fill: var(--gantt-header-bg); }
.gantt-header-cell { fill: var(--gantt-header-bg); stroke: var(--gantt-border); stroke-width: 1; }
.gantt-header-cell--weekend { fill: var(--gantt-weekend); }
.gantt-header-cell--holiday { fill: var(--gantt-holiday); }
.gantt-header-text { fill: var(--gantt-text-muted); font-size: 11px; pointer-events: none; }
.gantt-header-text--table { fill: var(--gantt-text); font-weight: 600; }

/* Barres */
.gantt-task { touch-action: none; }
.gantt-bar { fill: var(--gantt-bar-bg); stroke: var(--gantt-bar-stroke); stroke-width: 1; rx: var(--gantt-bar-radius); ry: var(--gantt-bar-radius); cursor: grab; }
.gantt-bar--group { fill: var(--gantt-group-bg); stroke: var(--gantt-group-bg); }
.gantt-bar--milestone { fill: var(--gantt-milestone-bg); stroke: var(--gantt-milestone-bg); }
/* Couleur d'une tâche (champ color) : barre teintée, contour et progression pleins ; groupe et jalon pleins */
.gantt-task[class*="gantt-task--color-"] .gantt-bar { fill: var(--c); fill-opacity: .3; stroke: var(--c); }
.gantt-task[class*="gantt-task--color-"] .gantt-progress { fill: var(--c); opacity: 1; }
.gantt-task--group[class*="gantt-task--color-"] .gantt-bar,
.gantt-task--milestone[class*="gantt-task--color-"] .gantt-bar { fill-opacity: 1; }
.gantt-task[class*="gantt-task--color-"] .gantt-group-pill { fill: var(--c); fill-opacity: .3; }
.gantt-task[class*="gantt-task--color-"] .gantt-group-pill-progress { fill: var(--c); }
.gantt-progress { fill: var(--gantt-progress-bg); opacity: 0.85; rx: var(--gantt-bar-radius); ry: var(--gantt-bar-radius); }
.gantt-label { fill: var(--gantt-text); pointer-events: none; }
.gantt-task.is-selected .gantt-bar { stroke: var(--gantt-selected); stroke-width: 2; }
.gantt-task.is-dragging .gantt-bar { opacity: 0.7; }
.gantt-task.is-invalid .gantt-bar { stroke: var(--gantt-invalid); stroke-width: 2; }
.gantt-task.is-target .gantt-bar { stroke: var(--gantt-selected); stroke-width: 3; }

/* Pilule de groupe : masquée par défaut, affichée par les thèmes qui la préfèrent à l'accolade */
.gantt-group-pill, .gantt-group-pill-progress { display: none; }
.gantt-task.is-selected .gantt-group-pill { stroke: var(--gantt-selected); stroke-width: 2; }

/* Lecture seule : aucun curseur d'édition */
.gantt-root.is-readonly .gantt-bar,
.gantt-root.is-readonly .gantt-group-pill { cursor: default !important; }

/* Poignées et ancres (visibles au survol) */
.gantt-handle { fill: transparent; cursor: ew-resize; }
.gantt-handle--progress { fill: var(--gantt-progress-bg); cursor: pointer; opacity: 0; }
.gantt-task:hover .gantt-handle--progress,
.gantt-task.is-selected .gantt-handle--progress { opacity: 1; }
.gantt-anchor { fill: var(--gantt-bg); stroke: var(--gantt-selected); stroke-width: 1.5; cursor: crosshair; opacity: 0; }
.gantt-task:hover .gantt-anchor,
.gantt-task.is-selected .gantt-anchor { opacity: 1; }

/* Liens */
.gantt-link-path { fill: none; stroke: var(--gantt-link-color); stroke-width: var(--gantt-link-width); stroke-linejoin: round; }
.gantt-link-hit { fill: none; stroke: transparent; stroke-width: 10; cursor: pointer; pointer-events: stroke; }
.gantt-arrow { fill: var(--gantt-link-color); }
.gantt-link.is-selected .gantt-link-path { stroke: var(--gantt-link-selected); stroke-width: 2.5; }
.gantt-link--ss .gantt-link-path,
.gantt-link--sf .gantt-link-path { stroke-dasharray: 5 3; }
/* Repères et zones colorées */
.gantt-zone, .gantt-marker, .gantt-zone-tag, .gantt-marker-tag { --c: var(--gantt-annotation); }
.gantt-color--red, .gantt-task--color-red, .gantt-zone--red, .gantt-marker--red, .gantt-zone-tag--red, .gantt-marker-tag--red, .gantt-swatch--red { --c: var(--gantt-color-red); }
.gantt-color--orange, .gantt-task--color-orange, .gantt-zone--orange, .gantt-marker--orange, .gantt-zone-tag--orange, .gantt-marker-tag--orange, .gantt-swatch--orange { --c: var(--gantt-color-orange); }
.gantt-color--amber, .gantt-task--color-amber, .gantt-zone--amber, .gantt-marker--amber, .gantt-zone-tag--amber, .gantt-marker-tag--amber, .gantt-swatch--amber { --c: var(--gantt-color-amber); }
.gantt-color--yellow, .gantt-task--color-yellow, .gantt-zone--yellow, .gantt-marker--yellow, .gantt-zone-tag--yellow, .gantt-marker-tag--yellow, .gantt-swatch--yellow { --c: var(--gantt-color-yellow); }
.gantt-color--lime, .gantt-task--color-lime, .gantt-zone--lime, .gantt-marker--lime, .gantt-zone-tag--lime, .gantt-marker-tag--lime, .gantt-swatch--lime { --c: var(--gantt-color-lime); }
.gantt-color--green, .gantt-task--color-green, .gantt-zone--green, .gantt-marker--green, .gantt-zone-tag--green, .gantt-marker-tag--green, .gantt-swatch--green { --c: var(--gantt-color-green); }
.gantt-color--teal, .gantt-task--color-teal, .gantt-zone--teal, .gantt-marker--teal, .gantt-zone-tag--teal, .gantt-marker-tag--teal, .gantt-swatch--teal { --c: var(--gantt-color-teal); }
.gantt-color--cyan, .gantt-task--color-cyan, .gantt-zone--cyan, .gantt-marker--cyan, .gantt-zone-tag--cyan, .gantt-marker-tag--cyan, .gantt-swatch--cyan { --c: var(--gantt-color-cyan); }
.gantt-color--blue, .gantt-task--color-blue, .gantt-zone--blue, .gantt-marker--blue, .gantt-zone-tag--blue, .gantt-marker-tag--blue, .gantt-swatch--blue { --c: var(--gantt-color-blue); }
.gantt-color--indigo, .gantt-task--color-indigo, .gantt-zone--indigo, .gantt-marker--indigo, .gantt-zone-tag--indigo, .gantt-marker-tag--indigo, .gantt-swatch--indigo { --c: var(--gantt-color-indigo); }
.gantt-color--purple, .gantt-task--color-purple, .gantt-zone--purple, .gantt-marker--purple, .gantt-zone-tag--purple, .gantt-marker-tag--purple, .gantt-swatch--purple { --c: var(--gantt-color-purple); }
.gantt-color--pink, .gantt-task--color-pink, .gantt-zone--pink, .gantt-marker--pink, .gantt-zone-tag--pink, .gantt-marker-tag--pink, .gantt-swatch--pink { --c: var(--gantt-color-pink); }
.gantt-zone { fill: var(--c); fill-opacity: var(--gantt-zone-opacity); pointer-events: none; }
.gantt-marker { stroke: var(--c); stroke-width: 1.5; stroke-dasharray: 4 3; pointer-events: none; }
.gantt-annotation-band { fill: var(--gantt-header-bg); stroke: var(--gantt-border); stroke-width: 1; }
.gantt-zone-tag-bg { fill: var(--c); fill-opacity: .18; }
.gantt-zone-tag-text { fill: var(--c); font-size: 11px; font-weight: 600; pointer-events: none; }
.gantt-marker-tag-bg { fill: var(--c); }
.gantt-marker-tag-text { fill: #fff; font-size: 11px; font-weight: 600; pointer-events: none; }
.gantt-zone-tag, .gantt-marker-tag { cursor: pointer; }
.gantt-marker-tag { cursor: ew-resize; }
.gantt-root.is-readonly .gantt-zone-tag, .gantt-root.is-readonly .gantt-marker-tag { cursor: default; }
.gantt-marker-tag.is-dragging .gantt-marker-tag-bg { opacity: .8; }

/* Chemin critique et marges (option showCritical) */
.gantt-task.is-critical .gantt-bar { stroke: var(--gantt-critical); stroke-width: 2; }
.gantt-task.is-critical .gantt-progress { fill: var(--gantt-critical); }
.gantt-task--group.is-critical .gantt-bar, .gantt-task--milestone.is-critical .gantt-bar { fill: var(--gantt-critical); }
.gantt-link--critical .gantt-link-path { stroke: var(--gantt-critical); stroke-width: 2; }
.gantt-arrow--critical { fill: var(--gantt-critical); }
.gantt-task.is-critical.is-selected .gantt-bar { stroke: var(--gantt-selected); }
.gantt-slack-line, .gantt-slack-tick { stroke: var(--gantt-slack); stroke-width: 1.5; }
.gantt-link-draft { stroke: var(--gantt-selected); stroke-width: 1.5; stroke-dasharray: 4 3; pointer-events: none; }

/* Tableau (collant à gauche) */
.gantt-table-bg { fill: var(--gantt-bg); }
/* --row-bg : couleur de fond de la ligne dans son état courant (utilisée aussi par le dégradé des actions) */
.gantt-table-row { --row-bg: var(--gantt-bg); }
.gantt-table-row--alt { --row-bg: var(--gantt-row-alt); }
.gantt-table-row.is-selected { --row-bg: color-mix(in srgb, var(--gantt-selected) 14%, var(--gantt-bg)); }
.gantt-table-rowbg { fill: var(--row-bg); }
.gantt-fade-stop { stop-color: var(--row-bg); }
.gantt-table-text { fill: var(--gantt-text); pointer-events: none; }
.gantt-table-text--date { fill: var(--gantt-text-muted); }
.gantt-table-row--group .gantt-table-text--name { font-weight: 600; }
.gantt-chevron { fill: var(--gantt-text-muted); }
.gantt-chevron-hit { fill: transparent; cursor: pointer; }
.gantt-cell { fill: transparent; }
.gantt-table-edge { stroke: var(--gantt-border); stroke-width: 1; }
/* Tri par en-tête et largeur du tableau */
.gantt-sort-hit { fill: transparent; cursor: pointer; }
.gantt-sort-hit:hover { fill: var(--gantt-text); fill-opacity: .04; }
.gantt-sort-arrow { fill: var(--gantt-selected); pointer-events: none; }
.gantt-header-text--table.is-sorted { fill: var(--gantt-selected); }
.gantt-table-resize { fill: transparent; cursor: col-resize; }
.gantt-filter-btn { cursor: pointer; outline: none; }
.gantt-filter-hit { fill: transparent; }
.gantt-filter-icon { fill: none; stroke: var(--gantt-text-muted); stroke-width: 1.3; stroke-linejoin: round; opacity: 0; transition: opacity .12s; }
/* Entonnoir visible au survol de sa case d'en-tête, au focus clavier, ou en permanence quand le filtre est actif */
.gantt-col-head:hover .gantt-filter-icon, .gantt-filter-btn:focus-visible .gantt-filter-icon { opacity: 1; }
@media (hover: none) { .gantt-filter-icon { opacity: .45; } } /* écrans tactiles : pas de survol */
.gantt-filter-btn:hover .gantt-filter-hit { fill: var(--gantt-text); fill-opacity: .06; }
.gantt-filter-btn:focus-visible .gantt-filter-hit { stroke: var(--gantt-selected); stroke-width: 2; }
.gantt-filter-btn.is-active .gantt-filter-icon { fill: var(--gantt-selected); stroke: var(--gantt-selected); opacity: 1; }
.gantt-table-resize:hover { fill: var(--gantt-selected); fill-opacity: .25; }

/* Actions de ligne (ajouter, supprimer, déplacer) et ligne d'ajout */
.gantt-actions { opacity: 0; }
.gantt-table-row:hover .gantt-actions,
.gantt-table-row.is-selected .gantt-actions { opacity: 1; }
.gantt-action-icon { fill: none; stroke: var(--gantt-text-muted); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; pointer-events: none; }
.gantt-action--grip .gantt-action-icon { stroke-width: 2.2; }
.gantt-action-hit { fill: transparent; cursor: pointer; }
.gantt-action--grip .gantt-action-hit { cursor: grab; }
.gantt-action:hover .gantt-action-icon { stroke: var(--gantt-selected); }
.gantt-action--delete:hover .gantt-action-icon { stroke: var(--gantt-invalid); }
.gantt-add-bg { fill: var(--gantt-bg); }
.gantt-add-bg--alt { fill: var(--gantt-row-alt); }
.gantt-add-text { fill: var(--gantt-text-muted); pointer-events: none; }
.gantt-add-hit { fill: transparent; cursor: pointer; }
.gantt-add-row:hover .gantt-add-bg { fill: var(--gantt-weekend); }
.gantt-add-row:hover .gantt-add-text { fill: var(--gantt-selected); }
.gantt-drop-line { stroke: var(--gantt-selected); stroke-width: 2; stroke-linecap: round; }
.gantt-drop-box { fill: none; stroke: var(--gantt-selected); stroke-width: 2; rx: 4px; ry: 4px; }
.gantt-drop-line.is-invalid, .gantt-drop-box.is-invalid { stroke: var(--gantt-invalid); }
.gantt-table-row.is-reordering .gantt-table-rowbg { opacity: .5; }

/* Contraintes de dates */
.gantt-constraint-line { stroke: var(--gantt-constraint); stroke-width: 1.5; pointer-events: none; }
.gantt-constraint-flag { fill: var(--gantt-constraint); pointer-events: none; }
.gantt-constraint-hit { fill: transparent; cursor: pointer; }
.gantt-constraint.is-violated .gantt-constraint-line { stroke: var(--gantt-invalid); }
.gantt-constraint.is-violated .gantt-constraint-flag { fill: var(--gantt-invalid); }
.gantt-task.is-violated .gantt-bar { stroke: var(--gantt-invalid); stroke-width: 2; }
.gantt-root.is-readonly .gantt-constraint-hit { cursor: default; }

/* Fenêtre d'édition d'une contrainte */
.gantt-popover { position: absolute; z-index: 5; width: 260px; box-sizing: border-box; padding: 12px 14px; background: var(--gantt-bg); color: var(--gantt-text); border: 1px solid var(--gantt-border); border-radius: 10px; box-shadow: 0 10px 30px rgba(0, 0, 0, .2); font: inherit; }
.gantt-popover h4 { margin: 0 0 8px; font-size: 13px; }
.gantt-popover-row { display: flex; flex-direction: column; gap: 3px; margin-bottom: 8px; }
.gantt-popover-row[hidden] { display: none; }
.gantt-popover label { font-size: 11px; color: var(--gantt-text-muted); }
.gantt-popover select, .gantt-popover input { box-sizing: border-box; height: 30px; padding: 0 8px; border: 1px solid var(--gantt-border); border-radius: 7px; background: var(--gantt-bg); color: inherit; font: inherit; }
.gantt-popover :focus-visible { outline: 2px solid var(--gantt-selected); outline-offset: 1px; }
.gantt-popover-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 4px; }
.gantt-popover button { height: 30px; padding: 0 12px; border: 1px solid var(--gantt-border); border-radius: 7px; background: var(--gantt-bg); color: inherit; font: inherit; cursor: pointer; }
.gantt-popover--task { width: 300px; }
.gantt-popover--confirm { width: 280px; }
.gantt-popover-text { margin: 0 0 10px; font-size: 13px; line-height: 1.4; }
.gantt-popover-confirm[hidden], .gantt-popover-actions[hidden] { display: none; }
.gantt-popover-start { margin-right: auto; }
.gantt-popover-remove { color: var(--gantt-invalid) !important; }
.gantt-popover-danger { background: var(--gantt-invalid) !important; border-color: var(--gantt-invalid) !important; color: #fff !important; }
.gantt-popover .gantt-popover-check { display: flex; align-items: center; gap: 6px; margin: 0 0 6px; font-size: 13px; color: var(--gantt-text) !important; }
.gantt-popover-row input:disabled { opacity: .5; }
.gantt-popover .gantt-popover-check input { width: 15px; height: 15px; margin: 0; padding: 0; accent-color: var(--gantt-selected); }
.gantt-popover-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.gantt-swatches { display: grid; grid-template-columns: repeat(7, 22px); gap: 6px 8px; margin: 0 0 8px; padding: 0; border: 0; }
.gantt-swatches legend { padding: 0; margin-bottom: 4px; font-size: 11px; color: var(--gantt-text-muted); }
.gantt-swatch { position: relative; display: block; width: 22px; height: 22px; cursor: pointer; }
.gantt-swatch input { position: absolute; inset: 0; margin: 0; opacity: 0; cursor: pointer; }
.gantt-swatch span { display: block; width: 100%; height: 100%; box-sizing: border-box; border-radius: 50%; background: var(--c); }
.gantt-swatch--none span { background: linear-gradient(135deg, transparent 45%, var(--gantt-text-muted) 45% 55%, transparent 55%), var(--gantt-bg); border: 1px solid var(--gantt-border); }
.gantt-swatch input:checked + span { box-shadow: 0 0 0 2px var(--gantt-bg), 0 0 0 4px var(--gantt-text); }
.gantt-swatch input:focus-visible + span { outline: 2px solid var(--gantt-selected); outline-offset: 4px; }
.gantt-popover-apply { background: var(--gantt-selected) !important; border-color: var(--gantt-selected) !important; color: #fff !important; }

/* Surcouche (infobulle de glisser) */
.gantt-overlay { pointer-events: none; }
.gantt-tip-bg { fill: var(--gantt-text); opacity: 0.9; rx: 3px; ry: 3px; }
.gantt-tip-text { fill: var(--gantt-bg); font-size: 11px; }

/* Édition en ligne */
.gantt-input {
  box-sizing: border-box;
  font: inherit;
  padding: 0 6px;
  border: 2px solid var(--gantt-selected);
  background: var(--gantt-bg);
  color: var(--gantt-text);
  z-index: 2;
}

/* Thème sombre d'exemple : s'active avec data-theme="dark" sur l'élément racine */
.gantt-root[data-theme="dark"] {
  color-scheme: dark;
  --gantt-bg: #111827;
  --gantt-text: #e5e7eb;
  --gantt-text-muted: #9ca3af;
  --gantt-border: #374151;
  --gantt-row-alt: #1f2937;
  --gantt-weekend: #1f2937;
  --gantt-holiday: #3a2530;
  --gantt-constraint: #9ca3af;
  --gantt-planning-end: #a78bfa;
  --gantt-critical: #f87171;
  --gantt-slack: #6b7280;
  --gantt-color-red: #f87171;
  --gantt-color-orange: #fb923c;
  --gantt-color-amber: #fbbf24;
  --gantt-color-yellow: #facc15;
  --gantt-color-lime: #a3e635;
  --gantt-color-green: #4ade80;
  --gantt-color-teal: #2dd4bf;
  --gantt-color-cyan: #22d3ee;
  --gantt-color-blue: #60a5fa;
  --gantt-color-indigo: #818cf8;
  --gantt-color-purple: #c084fc;
  --gantt-color-pink: #f472b6;
  --gantt-annotation: #94a3b8;
  --gantt-zone-opacity: .14;
  --gantt-header-bg: #1f2937;
  --gantt-bar-bg: #1e40af;
  --gantt-bar-stroke: #60a5fa;
  --gantt-progress-bg: #60a5fa;
  --gantt-group-bg: #9ca3af;
  --gantt-link-color: #9ca3af;
  --gantt-selected: #60a5fa;
}

@media print {
  @page { size: landscape; margin: 10mm; }
  body { background: #fff !important; }
  .gantt-toolbar, .toolbar, #log, h1 { display: none !important; }
  .gantt-root { print-color-adjust: exact; -webkit-print-color-adjust: exact; }
  .gantt-scroll { display: none; }
  .gantt-print-only { display: block; }
  .gantt-print-only .gantt-svg { max-width: 100%; height: auto; }
  .gantt-handle, .gantt-anchor, .gantt-link-hit, .gantt-cell, .gantt-chevron-hit, .gantt-sort-hit, .gantt-table-resize, .gantt-filter-btn:not(.is-active) { display: none; }
}

/* Clavier et accessibilité */
.gantt-scroll:focus-visible { outline: 2px solid var(--gantt-selected); outline-offset: -2px; }
.gantt-scroll:focus-visible .gantt-table-row.is-selected .gantt-table-rowbg { stroke: var(--gantt-selected); stroke-width: 2; }
.gantt-task.is-link-source .gantt-bar { stroke: var(--gantt-selected); stroke-width: 2; stroke-dasharray: 4 2; }
.gantt-live { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
@media (forced-colors: active) {
  .gantt-bar, .gantt-group-pill { stroke: CanvasText; stroke-width: 1; }
  .gantt-progress, .gantt-group-pill-progress { fill: Highlight; }
  .gantt-link-path { stroke: CanvasText; }
  .gantt-arrow { fill: CanvasText; }
  .gantt-today { stroke: Highlight; }
  .gantt-task.is-critical .gantt-bar, .gantt-link--critical .gantt-link-path { stroke: CanvasText; stroke-width: 3; }
  .gantt-slack-line, .gantt-slack-tick { stroke: GrayText; }
  .gantt-marker { stroke: CanvasText; }
  .gantt-marker-tag-bg { fill: CanvasText; }
  .gantt-marker-tag-text { fill: Canvas; }
  .gantt-zone-tag-text { fill: CanvasText; }
  .gantt-task.is-selected .gantt-bar, .gantt-link.is-selected .gantt-link-path { stroke: Highlight; stroke-width: 3; }
}