/* Tool trace */

.stepper { list-style: none; margin: 0 0 8px; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; }
.stepper li {
  display: flex; flex-direction: column; gap: 6px; padding: 10px 8px 9px; border-radius: 10px;
  font: 500 12.5px/1 var(--font-ui); color: var(--muted-dark); background: var(--carbon-2); border: 1px solid var(--line-dark);
}
.stepper li span { font: 500 11px/1 var(--font-mono); color: var(--muted-dark); }
.stepper li[aria-current='step'] { border-color: var(--teal); color: var(--text); }
.stepper li[aria-current='step'] span { color: var(--teal-text); }
.stepper li.done { color: var(--text); }
.stepper li.done span { color: var(--teal-text); }

.pane { padding-top: 18px; }
.pane[hidden] { display: none; }
.pane h1 { font-size: 30px; }
.pane-sub { color: var(--muted-dark); font: 400 14px/1.5 var(--font-ui); margin: 8px 0 18px; }
.pane-actions { display: flex; gap: 10px; margin-top: 22px; }
.pane-actions .btn:last-child { flex: 1; }

.drop {
  display: grid; justify-items: center; gap: 8px; text-align: center; cursor: pointer;
  padding: 30px 18px; margin-bottom: 10px; border: 1.5px dashed color-mix(in srgb, var(--teal) 55%, transparent);
  border-radius: 14px; background: color-mix(in srgb, var(--teal) 6%, transparent);
  transition: background 0.15s ease, border-color 0.15s ease;
}
.drop:hover, .drop.over { background: color-mix(in srgb, var(--teal) 13%, transparent); border-color: var(--teal); }
.drop img { width: 40px; height: auto; margin-bottom: 6px; }
.drop b { font: 700 17px/1.2 var(--font); }
.drop span { font: 400 13px/1.4 var(--font-ui); color: var(--muted-dark); }

.note ul { margin: 8px 0 0; padding-left: 18px; }
.note li { margin-bottom: 4px; }

.ai-box {
  display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 14px;
  border-radius: 12px; background: linear-gradient(135deg, color-mix(in srgb, var(--teal) 18%, var(--carbon-2)), var(--carbon-2));
  border: 1px solid color-mix(in srgb, var(--teal) 40%, var(--line-dark)); margin-bottom: 14px;
}
.ai-box b { display: block; font: 700 15px/1.2 var(--font); }
.ai-box span { display: block; font: 400 12.5px/1.4 var(--font-ui); color: var(--muted-dark); margin-top: 4px; }

.shape-list { display: grid; gap: 8px; }
.shape {
  display: grid; grid-template-columns: 26px 1fr auto; gap: 10px; align-items: center;
  padding: 10px 10px 10px 12px; border-radius: 12px; background: var(--carbon-2); border: 1px solid var(--line-dark);
}
.shape.off { opacity: 0.5; }
.shape.active { border-color: var(--teal); }
.shape .num {
  width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center;
  background: var(--teal); color: var(--carbon); font: 700 12px/1 var(--font-ui);
}
.shape.off .num { background: var(--line-dark); color: var(--muted-dark); }
.shape input[type='text'] {
  width: 100%; background: transparent; border: 1px solid transparent; border-radius: 6px; color: var(--text);
  font: 500 14px/1.2 var(--font-ui); padding: 4px 6px;
}
.shape input[type='text']:focus { outline: none; border-color: var(--teal); }
.shape .meta { grid-column: 2 / -1; display: flex; align-items: center; gap: 10px; font: 400 12px/1 var(--font-mono); color: var(--muted-dark); }
.shape .meta input[type='range'] { flex: 1; }
.shape .meta b { color: var(--text); font-weight: 500; min-width: 44px; text-align: right; }
.shape .icon-btn { border: 0; background: transparent; color: var(--muted-dark); cursor: pointer; padding: 6px; border-radius: 6px; font: 400 13px/1 var(--font-ui); }
.shape .icon-btn:hover { color: var(--text); background: var(--carbon-3); }

.trace-view { display: grid; place-items: center; }
.photo-stage { position: absolute; inset: 24px 24px 84px; display: grid; place-items: center; }
.photo-stage canvas { border-radius: 6px; box-shadow: 0 20px 60px rgb(0 0 0 / 0.4); }
.photo-stage canvas:not([width]) { display: none; }
.overlay { position: absolute; overflow: visible; pointer-events: none; }
.overlay .corner { pointer-events: all; cursor: grab; fill: var(--eggshell); stroke: var(--teal); stroke-width: 3; }
.overlay .quad { fill: rgb(158 196 181 / 0.12); stroke: var(--teal); stroke-width: 2; stroke-dasharray: 8 6; }
.overlay .outline { fill: rgb(158 196 181 / 0.22); stroke: var(--teal); stroke-width: 2; pointer-events: all; cursor: pointer; }
.overlay .outline.off { fill: rgb(224 129 111 / 0.12); stroke: var(--danger); stroke-dasharray: 5 5; }
.overlay .outline.active { stroke: var(--eggshell); stroke-width: 3; }
.overlay .notch { fill: rgb(246 238 217 / 0.35); stroke: var(--eggshell); stroke-width: 2; stroke-dasharray: 4 3; pointer-events: all; cursor: pointer; }
.overlay .tag { font: 700 13px/1 var(--font-ui); fill: var(--carbon); }
.overlay .tag-bg { fill: var(--teal); }
.photo-stage.notching { cursor: crosshair; }
.photo-stage.notching .overlay .outline { pointer-events: none; }

.trace-view canvas[data-view] { position: absolute; inset: 0; width: 100%; height: 100%; }
.trace-view canvas[data-view][hidden] { display: none; }

.empty { display: grid; justify-items: center; gap: 16px; color: var(--muted-dark); font: 400 14px/1.4 var(--font-ui); }
.empty img { width: 280px; border-radius: 14px; opacity: 0.9; }
.empty[hidden] { display: none; }

@media (max-width: 900px) {
  .photo-stage { inset: 12px 12px 72px; }
}

.photo-stage[hidden] { display: none; }
.morph-handoff { margin: 14px 2px 0; font: 400 13px/1.5 var(--font-ui); color: var(--muted-dark); }
.morph-handoff .linkish { color: var(--neon); }