/* StatLab visualization — UI styles (29 Oct 2026, FR user). Scoped to .vz-* classes. Light + dark via tokens. */
:root { --vz-bg: #ffffff; --vz-panel: #f5f7fa; --vz-ink: #1b2430; --vz-muted: #5d6b7a; --vz-line: #d5dce4; --vz-accent: #1f5f8b; --vz-accent-ink: #ffffff; --vz-focus: #e8590c; --vz-tip-bg: #1b2430; --vz-tip-ink: #ffffff; --vz-zone: #eef3f8; --vz-err: #a4410e; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --vz-bg: #15191f; --vz-panel: #1d232b; --vz-ink: #e8eef4; --vz-muted: #a7b3bf; --vz-line: #333d48; --vz-accent: #6fb3e0; --vz-accent-ink: #0d1a24; --vz-tip-bg: #e8eef4; --vz-tip-ink: #15191f; --vz-zone: #222a33; --vz-err: #f0a46b; } }
:root[data-theme="dark"] { --vz-bg: #15191f; --vz-panel: #1d232b; --vz-ink: #e8eef4; --vz-muted: #a7b3bf; --vz-line: #333d48; --vz-accent: #6fb3e0; --vz-accent-ink: #0d1a24; --vz-tip-bg: #e8eef4; --vz-tip-ink: #15191f; --vz-zone: #222a33; --vz-err: #f0a46b; }

.vz-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.vz-host { position: relative; display: block; max-width: 100%; border-radius: 6px; outline: none; touch-action: pan-y; }
.vz-host svg[data-vz] { display: block; max-width: 100%; height: auto; border-radius: 4px; box-shadow: 0 0 0 1px var(--vz-line); }
.vz-host:focus-visible { box-shadow: 0 0 0 3px var(--vz-focus); }
.vz-host.vz-zooming { touch-action: none; }
.vz-host .vz-m { cursor: default; }
.vz-host [data-case] { cursor: pointer; }
.vz-host .vz-sel { stroke: var(--vz-focus) !important; stroke-width: 2.5 !important; }
.vz-tip { position: absolute; z-index: 5; max-width: 320px; padding: 6px 9px; border-radius: 5px; background: var(--vz-tip-bg); color: var(--vz-tip-ink); font: 12px/1.35 system-ui, "Segoe UI", Arial, sans-serif; pointer-events: none; box-shadow: 0 2px 8px rgba(0,0,0,.25); }
.vz-bar { display: flex; flex-wrap: wrap; gap: 4px; justify-content: flex-end; margin: 0 0 4px; }
.vz-bar button, .vz-actions button, .vz-editor button { font: 12px system-ui, "Segoe UI", Arial, sans-serif; min-height: 30px; min-width: 30px; padding: 3px 9px; border: 1px solid var(--vz-line); border-radius: 5px; background: var(--vz-panel); color: var(--vz-ink); cursor: pointer; }
.vz-bar button:hover, .vz-actions button:hover, .vz-editor button:hover { border-color: var(--vz-accent); }
.vz-bar button[aria-pressed="true"] { background: var(--vz-accent); color: var(--vz-accent-ink); }
.vz-bar button:focus-visible, .vz-actions button:focus-visible, .vz-editor :focus-visible, .vz-builder :focus-visible { outline: 3px solid var(--vz-focus); outline-offset: 1px; }
.vz-actions button:disabled { opacity: .45; cursor: not-allowed; }

/* builder */
.vz-builder { display: grid; grid-template-columns: minmax(180px, 240px) 1fr; gap: 14px; color: var(--vz-ink); font: 13px/1.4 system-ui, "Segoe UI", Arial, sans-serif; }
.vz-builder h3 { margin: 0 0 4px; font-size: 14px; }
.vz-hint { margin: 0 0 8px; color: var(--vz-muted); font-size: 12px; }
.vz-vars { background: var(--vz-panel); border: 1px solid var(--vz-line); border-radius: 8px; padding: 10px; max-height: 80vh; overflow: auto; }
.vz-chips { display: flex; flex-direction: column; gap: 4px; }
.vz-chip { display: flex; align-items: center; gap: 6px; padding: 6px 8px; border: 1px solid var(--vz-line); border-radius: 6px; background: var(--vz-bg); cursor: grab; user-select: none; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-height: 32px; }
.vz-chip[aria-selected="true"] { border-color: var(--vz-focus); box-shadow: 0 0 0 2px var(--vz-focus) inset; }
.vz-badge { flex: none; display: inline-grid; place-items: center; width: 18px; height: 18px; border-radius: 4px; font-size: 10px; font-weight: 700; color: #fff; }
.m-S .vz-badge { background: #0072B2; } .m-O .vz-badge { background: #009E73; } .m-N .vz-badge { background: #D55E00; }
.vz-main { min-width: 0; display: flex; flex-direction: column; gap: 10px; }
.vz-gallery { display: flex; flex-wrap: wrap; gap: 6px 14px; padding: 8px; background: var(--vz-panel); border: 1px solid var(--vz-line); border-radius: 8px; }
.vz-ggroup { display: flex; flex-wrap: wrap; align-items: flex-start; gap: 4px; }
.vz-gname { width: 100%; font-size: 11px; font-weight: 600; color: var(--vz-muted); text-transform: uppercase; letter-spacing: .03em; }
.vz-type { display: flex; flex-direction: column; align-items: center; gap: 2px; width: 78px; min-height: 64px; padding: 5px 3px; border: 1px solid var(--vz-line); border-radius: 6px; background: var(--vz-bg); color: var(--vz-accent); cursor: pointer; font: 11px/1.15 system-ui, "Segoe UI", Arial, sans-serif; }
.vz-type span { color: var(--vz-ink); text-align: center; }
.vz-type.on { border-color: var(--vz-accent); box-shadow: 0 0 0 2px var(--vz-accent) inset; }
.vz-zones { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 8px; }
.vz-zone { min-height: 58px; padding: 6px 8px; border: 2px dashed var(--vz-line); border-radius: 8px; background: var(--vz-zone); cursor: pointer; }
.vz-zone.filled { border-style: solid; }
.vz-zone.armed { border-color: var(--vz-focus); }
.vz-zone.over { border-color: var(--vz-accent); background: var(--vz-panel); }
.vz-zl { font-size: 11px; font-weight: 600; color: var(--vz-muted); margin-bottom: 4px; } .vz-zl b { color: var(--vz-err); }
.vz-empty { color: var(--vz-muted); font-size: 12px; font-style: italic; }
.vz-pill { display: inline-flex; align-items: center; gap: 2px; margin: 2px 4px 2px 0; padding: 2px 4px 2px 8px; border-radius: 12px; background: var(--vz-accent); color: var(--vz-accent-ink); font-size: 12px; }
.vz-pill button { border: 0; background: transparent; color: inherit; font-size: 15px; line-height: 1; cursor: pointer; min-width: 24px; min-height: 24px; }
.vz-opts { display: flex; flex-wrap: wrap; gap: 6px 16px; }
.vz-f { display: flex; flex-direction: column; gap: 2px; font-size: 12px; min-width: 150px; }
.vz-f.vz-chk { flex-direction: row; align-items: center; gap: 6px; min-width: 0; }
.vz-f.vz-wide { flex-basis: 100%; }
.vz-f label { color: var(--vz-muted); }
.vz-f input, .vz-f select, .vz-f textarea, .vz-editor select { font: 13px system-ui, "Segoe UI", Arial, sans-serif; min-height: 30px; padding: 3px 6px; border: 1px solid var(--vz-line); border-radius: 5px; background: var(--vz-bg); color: var(--vz-ink); }
.vz-f input[type=checkbox] { min-height: 0; width: 18px; height: 18px; }
.vz-err { color: var(--vz-err); min-height: 1em; }
.vz-actions { display: flex; flex-wrap: wrap; gap: 6px; }
.vz-preview { min-height: 200px; }
.vz-placeholder { display: grid; place-items: center; min-height: 220px; border: 1px dashed var(--vz-line); border-radius: 8px; color: var(--vz-muted); text-align: center; padding: 16px; }
.vz-placeholder svg { width: 68px; height: 56px; color: var(--vz-line); }
.vz-editor { display: flex; flex-wrap: wrap; gap: 10px; }
.vz-editor fieldset { flex: 1 1 260px; display: flex; flex-wrap: wrap; gap: 6px 12px; align-content: flex-start; margin: 0; padding: 8px 10px; border: 1px solid var(--vz-line); border-radius: 8px; background: var(--vz-panel); }
.vz-editor legend { font-weight: 600; padding: 0 4px; }
.vz-edwrap { border-top: 1px solid var(--vz-line); padding-top: 10px; }
@media (max-width: 760px) { .vz-builder { grid-template-columns: 1fr; } .vz-vars { max-height: 34vh; } .vz-type { width: 70px; } }
@media (pointer: coarse) { .vz-bar button, .vz-actions button, .vz-chip, .vz-type { min-height: 40px; } }
/* stage, on-chart editing, virtualised dendrogram (added 29 Oct 2026) */
.vz-stage { position: relative; }
.vz-host.vz-editmode svg[data-vz] { cursor: cell; box-shadow: 0 0 0 2px var(--vz-focus); }
.vz-pop { position: absolute; z-index: 8; width: 250px; padding: 8px 10px 10px; border: 1px solid var(--vz-line); border-radius: 8px; background: var(--vz-bg); color: var(--vz-ink); box-shadow: 0 6px 18px rgba(0,0,0,.25); display: flex; flex-direction: column; gap: 6px; font: 13px system-ui, "Segoe UI", Arial, sans-serif; }
.vz-pophead { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.vz-pophead button { border: 0; background: transparent; color: inherit; font-size: 18px; min-width: 30px; min-height: 30px; cursor: pointer; }
.vz-pop input[type=color] { width: 60px; height: 30px; padding: 0; border: 1px solid var(--vz-line); }
.vz-actions button[aria-pressed="true"] { background: var(--vz-accent); color: var(--vz-accent-ink); }
.vz-dview { overflow: auto; border: 1px solid var(--vz-line); border-radius: 6px; background: var(--vz-bg); color: var(--vz-ink); outline: none; }
.vz-dview:focus-visible { box-shadow: 0 0 0 3px var(--vz-focus); }
.vz-dview-svg { position: sticky; top: 0; display: block; color: var(--vz-ink); }
.vz-dview-axis { display: block; color: var(--vz-ink); }