.stitch-uploader{border:2px dashed var(--border);padding:1.25rem;text-align:center;transition:border-color .2s,background .2s}.stitch-uploader.drag-over{border-color:var(--primary);background:var(--soft)}.stitch-upload-label{display:grid;gap:.35rem;cursor:pointer}.stitch-upload-label strong{font-size:1.15rem;color:var(--primary)}.stitch-upload-label span{color:var(--muted)}.stitch-toolbar{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin:1rem 0;position:sticky;top:72px;z-index:5;padding:.75rem 0;background:var(--bg)}.stitch-toolbar>div:first-child{display:grid;gap:.2rem}.stitch-toolbar span{color:var(--muted);font-size:.85rem}.stitch-workspace{display:grid;grid-template-columns:minmax(250px,22%) minmax(0,1fr);gap:1rem;align-items:start;min-height:78vh}.stitch-image-list{display:grid;gap:.65rem;position:sticky;top:150px;max-height:calc(100vh - 175px);overflow:auto;padding-right:.25rem}.stitch-image-card{display:grid;grid-template-columns:4.5rem minmax(0,1fr);align-items:center;gap:.8rem;padding:.7rem}.stitch-image-card img{width:4.5rem;height:4.5rem;object-fit:cover;object-position:top;border:1px solid var(--border);border-radius:.55rem;background:#fff}.stitch-image-card>div:nth-child(2){display:grid;gap:.2rem;min-width:0}.stitch-image-card strong,.stitch-image-card span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.stitch-image-card span{color:var(--muted);font-size:.8rem}.stitch-card-actions{grid-column:1/-1;display:flex;justify-content:flex-end;gap:.35rem}.stitch-card-actions .copy-button{min-width:2.5rem}.stitch-canvas{padding:1rem;position:sticky;top:150px;max-height:calc(100vh - 175px);overflow:auto;min-width:0}.stitch-canvas-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;margin-bottom:1rem}.stitch-canvas-heading h3{margin:0;font-size:1.05rem}.stitch-canvas-heading p{margin:.3rem 0 0;color:var(--muted);font-size:.85rem}.stitch-canvas-heading>strong{color:var(--primary);white-space:nowrap}.stitch-sequence{width:min(100%,820px);margin:0 auto 1rem;background:#fff;border:1px solid var(--border);border-radius:.75rem;box-shadow:0 12px 30px rgba(15,23,42,.08)}.stitch-sequence-item{position:relative;margin-inline:auto;background:#fff}.stitch-sequence-item:not(:first-child)::before{content:"";position:absolute;z-index:3;top:0;left:0;right:0;height:3px;background:var(--primary);box-shadow:0 0 0 1px rgba(255,255,255,.9)}.stitch-sequence-frame{position:relative;overflow:hidden;background:#fff;min-height:1px}.stitch-sequence-frame img{position:absolute;top:0;left:0;width:100%;height:auto;pointer-events:none;user-select:none;will-change:transform}.stitch-seam-control{position:absolute;z-index:4;top:0;left:.65rem;right:.65rem;transform:translateY(-50%);display:grid;grid-template-columns:auto minmax(110px,1fr) 6.5rem;align-items:center;gap:.55rem;padding:.45rem;background:rgba(255,255,255,.96);border:1px solid var(--border);border-radius:.7rem;box-shadow:0 8px 22px rgba(15,23,42,.16);backdrop-filter:blur(8px)}.stitch-seam-grip{display:flex;align-items:center;justify-content:space-between;gap:.45rem;min-height:2.1rem;padding:.35rem .55rem;border-radius:.5rem;background:var(--soft);color:var(--primary);cursor:ns-resize;touch-action:none;user-select:none;white-space:nowrap}.stitch-seam-grip.dragging{cursor:grabbing}.stitch-seam-grip:focus-visible{outline:3px solid rgba(11,99,206,.28);outline-offset:2px}.stitch-seam-control label{display:grid;gap:.15rem;color:var(--muted);font-size:.7rem;font-weight:700}.stitch-seam-control input{width:100%;min-width:0}.preview-output span{color:var(--primary);font-weight:700}@media(max-width:900px){.stitch-workspace{grid-template-columns:1fr;min-height:auto}.stitch-image-list{position:static;max-height:none;display:flex;overflow-x:auto;overflow-y:hidden;padding:0 0 .4rem;scroll-snap-type:x proximity}.stitch-image-card{min-width:260px;scroll-snap-align:start}.stitch-canvas{position:static;max-height:72vh}.stitch-toolbar{top:60px}}@media(max-width:720px){.stitch-toolbar{align-items:stretch;flex-direction:column;position:static}.stitch-toolbar .tool-actions{display:grid;grid-template-columns:1fr 1fr}.stitch-toolbar .tool-actions .button:last-child{grid-column:1/-1}.stitch-image-card{grid-template-columns:3.5rem minmax(0,1fr);min-width:230px}.stitch-image-card img{width:3.5rem;height:3.5rem}.stitch-card-actions{grid-column:1/-1;justify-content:flex-end}.stitch-canvas{padding:.65rem}.stitch-canvas-heading{display:grid}.stitch-seam-control{left:.3rem;right:.3rem;grid-template-columns:auto minmax(80px,1fr) 5.25rem;gap:.3rem;padding:.3rem}.stitch-seam-grip{padding:.3rem .4rem}.stitch-seam-grip span{font-size:.75rem}.stitch-seam-control label{font-size:.62rem}}