/* Patch Studio: builder panel, stage, stitch check. Uses the theme tokens only. */
.ps-wrap{display:grid;grid-template-columns:minmax(320px,400px) 1fr;gap:40px;align-items:start}
.ps-panel.card{padding:8px 24px 20px}
.ps-panel.card:hover{transform:none;border-color:var(--border);box-shadow:var(--shadow-sm)}
.ps-panel [hidden]{display:none!important}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* product tabs */
.ps-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;padding:4px;margin:16px 0 4px;background:var(--surface);border-radius:var(--radius-pill)}
.ps-tab{min-height:44px;border:0;border-radius:var(--radius-pill);background:transparent;font:inherit;font-size:.92rem;font-weight:600;color:var(--text-secondary);cursor:pointer;transition:background .2s var(--ease-hover),color .2s var(--ease-hover),box-shadow .2s var(--ease-hover)}
.ps-tab:hover{color:var(--text)}
.ps-tab.on{background:#fff;color:var(--primary);box-shadow:var(--shadow-sm),0 0 0 1px var(--border)}

/* steps */
.ps-step{padding:20px 0;border-bottom:1px solid var(--border)}
.ps-step:last-of-type{border-bottom:0}
.ps-panel h2.ps-step-h{font-family:var(--font-sans);font-size:1rem;line-height:1.3;font-weight:650;letter-spacing:-.01em;text-transform:none;color:var(--text);margin:0 0 12px}
.ps-step-h .muted{font-weight:500}
.ps-step .form-label{margin:14px 0 8px}
.ps-step .form-row{margin-top:14px}
.ps-step .form-row .form-label{margin-top:0}
.ps-step .form-group{margin-bottom:0}
.ps-hint{font-size:.85rem;line-height:1.5;color:var(--text-secondary);margin:10px 0 0}

/* upload */
.ps-drop{position:relative;display:flex;align-items:center;gap:14px;padding:16px 18px;border:1.5px dashed var(--border);border-radius:var(--radius-lg);background:var(--surface);cursor:pointer;transition:border-color .2s var(--ease-hover),background .2s var(--ease-hover)}
.ps-drop:hover,.ps-drop.drag{border-color:var(--primary);background:#fff}
.ps-drop:focus-within{outline:3px solid var(--accent);outline-offset:2px}
.ps-drop input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%}
.ps-drop svg{flex:none;width:36px;height:36px;padding:8px;border-radius:50%;background:#fff;color:var(--primary);box-shadow:var(--shadow-sm)}
.ps-drop.has{border-style:solid;border-color:var(--primary);background:#fff}
.ps-drop-main{display:block;font-weight:600;font-size:.95rem;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:260px}
.ps-drop-sub{display:block;font-size:.82rem;color:var(--text-muted);margin-top:2px}
.ps-toggle{display:flex;align-items:center;gap:8px;min-height:44px;margin-top:4px;font-size:.88rem;color:var(--text-secondary);cursor:pointer}
.ps-toggle input{width:18px;height:18px;accent-color:var(--primary)}
.ps-threads{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin-top:12px;font-size:.82rem;color:var(--text-secondary)}
.ps-threads span{margin-right:4px}
.ps-threads i{width:16px;height:16px;border-radius:50%;box-shadow:inset 0 0 0 1px rgba(0,0,0,.15)}

/* chips and swatches */
.ps-chips{display:flex;flex-wrap:wrap;gap:8px}
.ps-shape,.ps-scene,.ps-lw{min-height:44px;padding:8px 14px;border-radius:var(--radius-pill);border:1px solid var(--border);background:#fff;font:inherit;font-size:.88rem;color:var(--text);cursor:pointer;transition:border-color .2s var(--ease-hover),background .2s var(--ease-hover)}
.ps-shape:hover,.ps-scene:hover,.ps-lw:hover{border-color:var(--primary)}
.ps-shape.on,.ps-scene.on,.ps-lw.on{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}
.ps-chip-feature{display:inline-flex;align-items:center;gap:6px}
.ps-chip-feature::before{content:"";width:12px;height:12px;background:currentColor;opacity:.8;-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 2l2.4 5.6L20 8l-4.3 3.9L17 18l-5-3-5 3 1.3-6.1L4 8l5.6-.4z'/%3E%3C/svg%3E") center/contain no-repeat;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 2l2.4 5.6L20 8l-4.3 3.9L17 18l-5-3-5 3 1.3-6.1L4 8l5.6-.4z'/%3E%3C/svg%3E") center/contain no-repeat}
.ps-swatches{display:flex;flex-wrap:wrap;gap:0;margin:-8px -8px 0}
.ps-sw{position:relative;width:44px;height:44px;border:0;padding:0;background:transparent;cursor:pointer;border-radius:50%}
.ps-sw::before{content:"";position:absolute;inset:8px;border-radius:50%;background:var(--c);box-shadow:inset 0 0 0 1px rgba(0,0,0,.18);transition:box-shadow .15s var(--ease-hover)}
.ps-sw:hover::before{box-shadow:inset 0 0 0 1px rgba(0,0,0,.18),0 0 0 2px #fff,0 0 0 3px var(--border)}
.ps-sw.on::before{box-shadow:inset 0 0 0 1px rgba(0,0,0,.18),0 0 0 2px #fff,0 0 0 4px var(--primary)}
.ps-sw:focus-visible{outline:3px solid var(--accent);outline-offset:0}
.ps-custom{display:inline-flex;align-items:center;gap:6px}
.ps-sw-custom::before{background:var(--c,conic-gradient(from 90deg,#f23d3d,#f5c400,#2fcf5a,#26c6da,#3b5bdb,#c33bd6,#f23d3d))}
.ps-sw-custom.has::before{box-shadow:inset 0 0 0 1px rgba(0,0,0,.18),0 0 0 2px #fff,0 0 0 3px var(--border)}
.ps-sw-custom.on::before{box-shadow:inset 0 0 0 1px rgba(0,0,0,.18),0 0 0 2px #fff,0 0 0 4px var(--primary)}
.ps-sw-custom input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer}
.ps-sw-custom:focus-within{outline:3px solid var(--accent);outline-offset:0}
.ps-hex{width:98px;height:44px;padding:6px 10px;font-family:var(--font-mono);font-size:.85rem;letter-spacing:.04em;text-transform:uppercase}
.ps-range{width:100%;height:44px;accent-color:var(--primary);margin:0;cursor:pointer}

.ps-more{padding:16px 0 0;border-top:1px solid var(--border)}
.ps-more summary{cursor:pointer;font-weight:600;font-size:.92rem;color:var(--primary);list-style:none;display:flex;align-items:center;gap:8px;min-height:44px}
.ps-more summary::-webkit-details-marker{display:none}
.ps-more summary::after{content:"";width:8px;height:8px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform .2s var(--ease-hover)}
.ps-more[open] summary::after{transform:rotate(225deg) translateY(-2px)}
.ps-more .form-row{margin-top:12px}
.ps-more .form-group{margin-bottom:0}
.ps-more>.form-label{margin:14px 0 8px}

/* stage */
.ps-stage{position:sticky;top:calc(var(--header-total) + 20px)}
.ps-stage [hidden]{display:none!important}
.ps-toolbar{display:flex;justify-content:space-between;gap:12px;margin-bottom:12px;flex-wrap:wrap}
.ps-seg{display:inline-flex;padding:3px;border-radius:var(--radius-pill);background:var(--surface);gap:2px}
.ps-seg button{min-height:44px;padding:8px 16px;border:0;border-radius:var(--radius-pill);background:transparent;font:inherit;font-size:.86rem;font-weight:600;color:var(--text-secondary);cursor:pointer}
.ps-seg button.on{background:#fff;color:var(--primary);box-shadow:var(--shadow-sm)}
.ps-canvas-wrap{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md);background:var(--surface-2)}
.ps-canvas-wrap>.ps-hint{position:absolute;left:50%;bottom:18px;transform:translateX(-50%);display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:var(--radius-pill);background:rgba(11,26,51,.86);color:#fff;font-size:.88rem;font-weight:600;white-space:nowrap;pointer-events:none;animation:ps-hint 1.6s var(--ease-out) both}
.ps-canvas-wrap>.ps-hint svg{width:18px;height:18px;animation:ps-hint-arrows 1.6s var(--ease-inout) infinite}
.ps-canvas-wrap>.ps-hint[hidden]{display:none}
@keyframes ps-hint{0%{opacity:0;transform:translate(-50%,8px)}15%,80%{opacity:1;transform:translate(-50%,0)}100%{opacity:0;transform:translate(-50%,0)}}
@keyframes ps-hint-arrows{0%,100%{transform:translateX(-3px)}50%{transform:translateX(3px)}}
@media(prefers-reduced-motion:reduce){.ps-canvas-wrap>.ps-hint,.ps-canvas-wrap>.ps-hint svg{animation:none}}
#ps-canvas{width:100%;height:auto;display:block}
#ps-gl{display:block;width:100%;aspect-ratio:1;touch-action:pan-y;cursor:grab;outline:0}
#ps-gl[hidden],#ps-canvas[hidden]{display:none}
.ps-toolbar{gap:8px}
.ps-summary{font-size:.92rem;line-height:1.5;color:var(--text-secondary);margin:14px 0 18px;min-height:1.5em}
.ps-actions{display:flex;gap:12px;flex-wrap:wrap}

/* stitch check */
.ps-ai{margin-top:24px;padding:16px 18px;border:1px solid var(--border);border-radius:var(--radius-lg);background:#fff}
.ps-ai-row{display:flex;align-items:center;justify-content:space-between;gap:16px}
.ps-ai-row strong{display:block;font-size:.95rem;color:var(--text)}
.ps-ai-row span{display:block;font-size:.85rem;color:var(--text-secondary);margin-top:2px}
.ps-ai .btn{flex:none}
.ps-ai .btn[aria-busy="true"]{opacity:.7;cursor:progress}
.ps-check-result{margin-top:14px;padding-top:14px;border-top:1px solid var(--border);font-size:.9rem;color:var(--text-secondary)}
.ps-check-result p{margin:0}
.ps-cr-head{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:8px}
.ps-cr-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--radius-pill);font-size:.8rem;font-weight:700}
.ps-cr-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}
.is-good .ps-cr-badge{background:#e6f4ea;color:#1e6b34}
.is-workable .ps-cr-badge{background:#fdf3dc;color:#8a5a00}
.is-review .ps-cr-badge{background:#fde8e8;color:#a1121a}
.ps-cr-meta{font-size:.82rem;color:var(--text-muted)}
.ps-cr-sum{color:var(--text)!important}
.ps-check-result ul{margin:10px 0 0;padding-left:18px}
.ps-check-result li{margin:4px 0;line-height:1.45}
.ps-check-result.is-error p{color:var(--accent-dark)}

.ps-disclaimer{display:flex;gap:10px;margin:18px 0 0;font-size:.82rem;line-height:1.55;color:var(--text-muted)}
.ps-disclaimer svg{flex:none;width:16px;height:16px;margin-top:2px}

@media(max-width:960px){
  /* Preview stays in view while the controls scroll under it; actions follow the controls. */
  .ps-wrap{grid-template-columns:1fr;gap:20px}
  .ps-stage{display:contents}
  .ps-toolbar{order:1;margin:0}
  .ps-canvas-wrap{order:2;position:sticky;top:calc(var(--header-total) + 8px);z-index:5;width:min(100%,46vh);justify-self:center;box-shadow:var(--shadow-lg)}
  .ps-summary{order:3;margin:0}
  .ps-panel{order:4}
  .ps-actions{order:5}
  .ps-ai{order:6;margin-top:4px}
  .ps-disclaimer{order:7;margin:0}
}
@media(max-width:520px){
  .ps-panel.card{padding:4px 16px 16px}
  .ps-ai-row{flex-direction:column;align-items:flex-start}
  .ps-actions .btn{width:100%}
}
/* thread chips: click one to change that thread's colour */
.ps-thread{position:relative;width:44px;height:44px;border-radius:50%;cursor:pointer}
.ps-thread::before{content:"";position:absolute;inset:8px;border-radius:50%;background:var(--c);box-shadow:inset 0 0 0 1px rgba(0,0,0,.18),0 0 0 2px #fff,0 0 0 3px var(--border)}
.ps-thread input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer}
.ps-thread:hover::before{box-shadow:inset 0 0 0 1px rgba(0,0,0,.18),0 0 0 2px #fff,0 0 0 3px var(--primary)}
.ps-thread:focus-within{outline:3px solid var(--accent);outline-offset:-2px}
.ps-thread.changed::after{content:"";position:absolute;right:6px;top:6px;width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 2px #fff}
.ps-threads .ps-thread-reset{border:0;background:none;padding:0 6px;min-height:44px;font:inherit;font-size:.8rem;color:var(--primary);text-decoration:underline;cursor:pointer;}
.ps-threads-note{flex-basis:100%;font-size:.78rem}
.ps-orient{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:8px 14px;border-radius:var(--radius-pill);border:1px solid var(--border);background:#fff;font:inherit;font-size:.88rem;color:var(--text);cursor:pointer}
.ps-orient svg{width:20px;height:20px}
.ps-orient:hover,.ps-type:hover{border-color:var(--primary)}
.ps-orient.on,.ps-type.on{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}
.ps-type{min-height:44px;padding:8px 14px;border-radius:var(--radius-pill);border:1px solid var(--border);background:#fff;font:inherit;font-size:.88rem;color:var(--text);cursor:pointer}
.ps-step [data-for][hidden],.ps-chips[hidden]{display:none}
.ps-step .ps-chips+.ps-chips{margin-top:10px}
.ps-hw-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.ps-hw,.ps-rel{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:8px 10px;border-radius:var(--radius-sm,10px);border:1px solid var(--border);background:#fff;font:inherit;font-size:.84rem;color:var(--text);cursor:pointer;transition:border-color .2s var(--ease-hover),background .2s var(--ease-hover)}
.ps-rel{border-radius:var(--radius-pill)}
.ps-hw{flex-direction:column;padding:10px 6px;line-height:1.2}
.ps-hw svg{width:26px;height:26px}
.ps-hw:hover,.ps-rel:hover{border-color:var(--primary)}
.ps-hw.on,.ps-rel.on{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}
@media(max-width:420px){.ps-hw-grid{grid-template-columns:repeat(2,1fr)}}