/* Only the scene-1 artifact changes. No phone/player/bubble styles. */
.m1-tree.wb-board{position:relative;padding:16px 10px 18px;background-color:var(--dc-bg);background-image:radial-gradient(circle,var(--dc-line) .75px,transparent .9px);background-size:13px 13px;border-radius:12px;isolation:isolate}
.wb-board .eyebrow{margin:0 5px 12px;font-size:10px}
.wb-board .root-question{padding:0 5px;margin:0 0 14px}
.wb-board .root-question h1{margin:0;font-size:20px;line-height:1.5}
.wb-board .root-question:after,.wb-board .root-dot{display:none}
.wb-board .context-tree{padding:0;margin:0}
.wb-board .tree-branch{padding:0 0 15px}
.wb-board .tree-branch:before,.wb-board .tree-branch:after,.wb-board .branch-stem{display:none}
.wb-board .tree-branch>section{border:1px solid var(--dc-line);border-radius:10px;padding:12px;background:var(--dc-bg);box-shadow:0 3px 7px #18251f06}
.wb-board .tree-branch h2{font-size:11px;margin-bottom:8px}
.wb-board .tree-branch h2 small{font-size:10px;margin-left:5px}
.wb-board .plan-item{gap:1px;margin-bottom:8px}
.wb-board .plan-item>span,.wb-board .plan-item b{font-size:11px;line-height:1.65}
.wb-board .plans{margin-right:17px}
.wb-board .reason{margin-left:16px}
.wb-board .reason:before{display:block;content:'';position:absolute;left:-9px;top:-16px;height:40px;width:8px;border:0;border-left:1px solid var(--dc-line);border-bottom:1px solid var(--dc-line);border-bottom-left-radius:6px}
.wb-board .reason-text{font-size:15px;line-height:1.65}
.wb-board .source{font-size:10px;line-height:1.65;min-height:24px;justify-content:center}
.wb-board .source span:first-child{font-size:10px}
.wb-board .graft-wrap{display:block;visibility:hidden;opacity:0;transition:none;max-height:0}
.wb-board[data-tree-phase='1'] .graft-wrap,.wb-board[data-tree-phase='2'] .graft-wrap{visibility:visible;opacity:1;max-height:none}
.wb-board .graft-inner{overflow:visible;margin:0;padding:0}
.wb-board .graft{margin:0;padding:40px 0 0 15px}
.wb-board .graft:before,.wb-board .graft:after,.wb-board .graft-junction{display:none}
.wb-board .graft-edge{font-size:10px;padding:0 0 6px 14px;position:relative;z-index:1;margin-top:0;background:var(--dc-bg)}
.wb-board .wb-edge{position:absolute;left:0;top:0;overflow:visible;pointer-events:none;color:var(--dc-ac)}
.wb-board .wb-track,.wb-board .wb-draw{fill:none;stroke:currentColor;stroke-width:1.5}
.wb-board .wb-track{opacity:.2;stroke-dasharray:2 3}
.wb-board .wb-draw{stroke-dasharray:1;stroke-dashoffset:var(--edge-drawn,1)}
.wb-board .wb-packet{fill:currentColor}
.wb-board .new-leaf{margin-left:14px;border:1px solid var(--dc-ac);border-radius:10px;padding:12px;background:var(--dc-bg);box-shadow:0 4px 10px #18251f09;animation:none!important;opacity:var(--leaf-opacity,0)!important;transform:none!important}
.wb-board .new-leaf h3{margin-bottom:6px}
.wb-board .new-leaf p{font-size:15px;line-height:1.65}
.wb-board .remaining{margin:4px 0 0 30px;padding-bottom:0}
.wb-board .remaining>section{border-style:dashed;box-shadow:none}
.wb-board .question-text{font-size:12px}
.wb-board .tree-takeaway{margin:14px 0 0 30px;padding:0;border:0;background:var(--dc-bg)}
.wb-board .tree-takeaway p{font-size:13px;line-height:1.65}
@media(prefers-reduced-motion:reduce){.wb-board .new-leaf{opacity:1!important}.wb-board .wb-draw{stroke-dashoffset:0}.wb-board .wb-packet{display:none}}

/* Reserve future geometry; line finishes at 8.7s, card begins at 8.8s. */
.wb-board .graft-wrap{visibility:visible!important;opacity:1!important;max-height:none!important}
.wb-board .wb-track{opacity:0}
.wb-board .graft-edge{opacity:var(--leaf-opacity,0)}

/* Each captured block is now a separate message row; no future row reserves space. */
#s6-phone[data-scene="brief"] #s6-thread>.s6-card[data-artifact^="wb-"]{padding:0;border:0;background:transparent;border-radius:0;overflow:visible}
.wb-board.wb-chunk{padding:0 10px;border-radius:0}
.wb-chunk .tree-branch{padding-bottom:0}
.wb-chunk .root-question{margin:0}
.wb-chunk .eyebrow{padding-top:10px}
.wb-chunk .tree-takeaway{visibility:visible;opacity:1}
.wb-chunk .new-leaf{opacity:1!important}
.wb-chunk .reason:before{display:none}
.wb-customer .new-leaf{margin-left:45px}
.wb-final .remaining{margin-top:0}
#s6-phone[data-scene="brief"] #s6-thread>.wb-connection{position:relative;height:72px;min-height:72px;margin:-10px 4px -4px 0;color:var(--dc-ac);background-image:radial-gradient(circle,var(--dc-line) .75px,transparent .9px);background-size:13px 13px}
.wb-connection .wb-edge{position:absolute;left:26px;top:0;overflow:visible;color:var(--dc-ac)}
.wb-connection .wb-draw{fill:none;stroke:currentColor;stroke-width:1.5;stroke-dasharray:1;stroke-dashoffset:var(--edge-drawn,1)}
.wb-connection .wb-packet{fill:currentColor}
.wb-link-label{position:absolute;left:60px;top:38px;font:10px/1.6 var(--sans);color:var(--dc-ac);opacity:0}
.wb-connection.wb-complete .wb-link-label{opacity:1}
@media(prefers-reduced-motion:reduce){.wb-connection .wb-packet{display:none}}

/* Keep the final observation readable when a global footer rule supplies a light-theme grey. */
.wb-final .tree-takeaway,.wb-final .tree-takeaway p,.wb-final .tree-takeaway strong{color:var(--dc-fg)}

/* One persistent whiteboard frame; only the nodes inside it arrive. */
#s6-phone[data-scene="brief"] #s6-thread>.wb-whiteboard{
 background-color:var(--dc-bg);background-image:radial-gradient(circle,var(--dc-line) .75px,transparent .9px);background-size:13px 13px;
 border:1px solid var(--dc-line);border-radius:17px;padding:14px;overflow:hidden;color:var(--dc-fg)
}
#s6-phone[data-scene="brief"] .wb-whiteboard>.s6-card{
 padding:0;margin:0 0 10px;border:0;border-radius:0;background:transparent;overflow:visible
}
.wb-whiteboard .wb-board.wb-chunk{background:transparent!important}
.wb-whiteboard>.wb-connection{position:relative;height:72px;min-height:72px;margin:-10px 4px -4px 0;color:var(--dc-ac);background:transparent}
.wb-whiteboard>.s6-card:last-child{margin-bottom:0}
#s6-phone[data-scene="brief"] .wb-whiteboard>.s6-card.s6-arrived>.wb-chunk{
 transform-origin:50% 100%;animation:tortoBubbleFade .360s ease-out both,tortoBubbleArrival .776s linear(0,0.0357,0.1212,0.2314,0.3495,0.4645,0.5701,0.6629,0.7419,0.8071,0.8597,0.901,0.9328,0.9567,0.9741,0.9864,0.9949,1.0004,1.0037,1.0055,1.0062,1.0062,1.0058,1.0052,1.0045,1.0038,1.0031,1.0024,1) both
}
@media(prefers-reduced-motion:reduce){#s6-phone[data-scene="brief"] .wb-whiteboard>.s6-card.s6-arrived>.wb-chunk{animation:none}}

/* Tree levels: root, equal-level evidence branches, customer evidence child. */
.wb-whiteboard{position:relative;isolation:isolate;--wb-tree-indent:20px}
.wb-whiteboard .plans,.wb-whiteboard .reason{margin-left:var(--wb-tree-indent);margin-right:0}
.wb-whiteboard .wb-customer .new-leaf{margin-left:calc(2 * var(--wb-tree-indent))}
.wb-whiteboard .wb-final .remaining,.wb-whiteboard .wb-final .tree-takeaway{margin-left:0}
.wb-whiteboard>.wb-connection .wb-edge{left:30px}
.wb-whiteboard .wb-link-label{left:50px}
.wb-whiteboard>.wb-root-edges{position:absolute;inset:0;width:100%;height:100%;z-index:0;overflow:visible;pointer-events:none;color:var(--dc-ac)}
.wb-root-edges path{fill:none;stroke:currentColor;stroke-width:1.2;opacity:.55}
.wb-whiteboard>.s6-card,.wb-whiteboard>.wb-connection,.wb-whiteboard>.motion-dots{position:relative;z-index:1}