/* Thread Art · 刺绣过程仿真页 */
.simulator-tool-shell { max-width: 1440px; }
.simulator-shell { width: 100%; }
.simulator-hero { display: flex; align-items: flex-end; justify-content: space-between; gap: 28px; margin-bottom: 20px; }
.simulator-hero h1 { margin: 0 0 6px; font-size: 26px; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.simulator-file-card { min-width: 360px; display: flex; align-items: center; gap: 12px; padding: 12px; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--surface); box-shadow: var(--shadow-sm); }
.simulator-file-card label { cursor: pointer; }
.simulator-file-meta { min-width: 0; display: flex; flex-direction: column; gap: 1px; }
.simulator-file-meta strong { max-width: 245px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 13px; }
.simulator-file-meta span { color: var(--text-muted); font-size: 11px; }
.simulator-error { margin: 0 0 18px; }

.simulator-loading { margin: 0 0 14px; color: var(--text-muted); font-size: 13px; }

.simulator-empty { display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; color: var(--text-muted); }
/* 作者样式的 display:flex 会盖掉 hidden 属性的 UA 默认 display:none，必须显式回收。 */
.simulator-empty[hidden] { display: none; }
.simulator-empty h2 { margin: 10px 0 4px; color: var(--text); font-size: 18px; }
.simulator-empty p { max-width: 480px; margin: 0; }
.simulator-empty-graphic { width: 88px; color: var(--brand-500); opacity: 0.72; }
.simulator-empty-graphic svg { display: block; width: 100%; }

.simulator-stats { display: grid; grid-template-columns: repeat(5, minmax(120px, 1fr)); gap: 10px; margin-bottom: 14px; }
.simulator-stat { min-width: 0; padding: 12px 14px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); }
.simulator-stat span { display: block; margin-bottom: 2px; color: var(--text-muted); font-size: 11px; }
.simulator-stat strong { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 16px; font-variant-numeric: tabular-nums; }

.simulator-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 14px; align-items: start; }
.simulator-stage-card, .simulator-panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.simulator-stage-card { overflow: hidden; }
.simulator-stage-head, .simulator-panel-head { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 15px 18px; border-bottom: 1px solid var(--border); }
.simulator-stage-head strong { display: block; margin-top: 2px; font-size: 14px; }
.simulator-kicker { display: block; color: var(--text-muted); font-size: 10px; font-weight: 600; letter-spacing: 0.07em; }
.simulator-current-route { padding: 4px 9px; border-radius: 999px; background: var(--brand-50); color: var(--brand-700); font-size: 12px; font-weight: 600; font-variant-numeric: tabular-nums; }

.simulator-canvas { position: relative; height: min(64vh, 690px); min-height: 520px; overflow: hidden; background-color: #fcfcfd; background-image: linear-gradient(#eef0f3 1px, transparent 1px), linear-gradient(90deg, #eef0f3 1px, transparent 1px); background-size: 24px 24px; }
#simulator-svg { display: block; width: 100%; height: 100%; }
.sim-design-bounds { fill: rgba(255,255,255,0.72); stroke: #d8dde5; stroke-width: 1; vector-effect: non-scaling-stroke; }
.sim-axis { stroke: #d9dee7; stroke-width: 1; stroke-dasharray: 3 5; vector-effect: non-scaling-stroke; }
.sim-route-ghost { fill: none; stroke: #cfd5de; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; opacity: 0.6; }
.sim-route-progress { fill: none; stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.sim-jump-path { fill: none; stroke: #8e98a8; stroke-width: 1.4; stroke-dasharray: 5 5; opacity: 0.5; }
.sim-jump-path.is-current { stroke: #4b5563; stroke-width: 2; opacity: 1; }
.sim-route-start-label circle { stroke: #fff; stroke-width: 2; }
.sim-route-start-label text { fill: #fff; font-weight: 700; font-family: var(--font-sans); pointer-events: none; }
.sim-needle-ring { fill: rgba(255,255,255,0.72); stroke-width: 2.5; animation: sim-needle-pulse 1s ease-out infinite; }
.sim-needle-dot { stroke: #fff; stroke-width: 1.5; vector-effect: non-scaling-stroke; }
@keyframes sim-needle-pulse { 50% { opacity: 0.35; } }
.simulator-event-toast { position: absolute; left: 50%; top: 18px; transform: translateX(-50%); z-index: 2; padding: 7px 12px; border: 1px solid var(--border-strong); border-radius: 999px; background: rgba(255,255,255,0.96); box-shadow: var(--shadow-md); font-size: 13px; font-weight: 600; }
.simulator-event-toast.is-trim { color: #a43e72; border-color: #e8bfd5; }
.simulator-event-toast.is-jump { color: #4b5563; }
.simulator-event-toast.is-color { color: #087f8c; border-color: #a5dde1; }

.simulator-controls { display: flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 16px; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--surface); }
.sim-control { min-height: 38px; display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 0 12px; border: 1px solid var(--border-strong); border-radius: var(--radius-md); background: var(--surface); color: var(--text); cursor: pointer; transition: border-color .18s, background .18s, color .18s; }
.sim-control:hover:not(:disabled) { border-color: var(--brand-500); color: var(--brand-600); background: var(--brand-50); }
.sim-control:disabled { opacity: 0.4; cursor: not-allowed; }
.sim-control svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.sim-control-icon { width: 40px; padding: 0; }
.sim-control-play { min-width: 88px; border-color: var(--brand-500); background: var(--brand-500); color: #fff; }
.sim-control-play:hover:not(:disabled) { background: var(--brand-600); color: #fff; }
.sim-control-play .icon-play { fill: currentColor; stroke: none; }
.sim-control-play .icon-pause { display: none; fill: currentColor; stroke: none; }
.sim-control-play.is-playing .icon-play { display: none; }
.sim-control-play.is-playing .icon-pause { display: block; }
.sim-speed-label { margin-left: 10px; color: var(--text-muted); font-size: 12px; }
.sim-speed { height: 38px; padding: 0 30px 0 10px; border: 1px solid var(--border-strong); border-radius: var(--radius-md); background: var(--surface); color: var(--text); cursor: pointer; }

.simulator-timeline { padding: 13px 18px 16px; }
.simulator-timeline-meta { display: flex; justify-content: space-between; margin-bottom: 7px; color: var(--text-muted); font-size: 11px; font-variant-numeric: tabular-nums; }
#sim-timeline { width: 100%; accent-color: var(--brand-500); cursor: pointer; }
.simulator-event-strip { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 8px; min-height: 25px; }
.sim-event-chip { padding: 3px 7px; border: 1px solid var(--border); border-radius: 999px; background: var(--surface-muted); color: var(--text-muted); font-size: 10px; cursor: pointer; transition: border-color .18s, color .18s, background .18s; }
.sim-event-chip:hover { border-color: var(--brand-500); color: var(--brand-600); background: var(--brand-50); }
.sim-event-chip.is-trim { border-color: #ead0df; color: #9c3f70; background: #fff7fb; }
.sim-event-chip.is-jump { border-color: #d8dde5; color: #5b6472; }
.sim-event-chip.is-color { border-color: #b9e0e4; color: #087f8c; background: #f2fbfc; }

.simulator-sidebar { display: flex; flex-direction: column; gap: 14px; }
.simulator-panel { overflow: hidden; }
.simulator-panel-head h2 { margin: 2px 0 0; font-size: 14px; }
.simulator-route-list { max-height: 510px; overflow-y: auto; padding: 8px; }
.sim-route-item { width: 100%; display: grid; grid-template-columns: 9px minmax(0, 1fr) auto; align-items: center; gap: 10px; padding: 10px; border: 1px solid transparent; border-radius: var(--radius-md); background: transparent; color: var(--text); text-align: left; cursor: pointer; transition: background .18s, border-color .18s; }
.sim-route-item:hover { background: var(--surface-muted); border-color: var(--border); }
.sim-route-item.is-active { background: var(--brand-50); border-color: var(--brand-200); }
.sim-route-item.is-done:not(.is-active) { opacity: 0.62; }
.sim-route-color { width: 9px; height: 34px; border-radius: 999px; }
.sim-route-main { min-width: 0; display: flex; flex-direction: column; gap: 1px; }
.sim-route-main strong { font-size: 13px; font-variant-numeric: tabular-nums; }
.sim-route-main span, .sim-route-count { color: var(--text-muted); font-size: 10px; font-variant-numeric: tabular-nums; }
.simulator-details dl { display: grid; grid-template-columns: 58px minmax(0, 1fr); gap: 8px 10px; margin: 0; padding: 14px 18px 18px; }
.simulator-details dt { color: var(--text-muted); font-size: 11px; }
.simulator-details dd { margin: 0; font-size: 12px; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }

/* 生成结果页内嵌模式：保留核心播放能力，把高级路线/机器动作留给完整仿真页。 */
.simulator-workspace.is-embedded { padding: 0 20px 20px; }
.simulator-workspace.is-embedded .simulator-grid { grid-template-columns: 1fr; }
.simulator-workspace.is-embedded .simulator-sidebar { display: none; }
.simulator-workspace.is-embedded .simulator-stage-card { box-shadow: none; }
.simulator-workspace.is-embedded .simulator-canvas { height: min(50vh, 520px); min-height: 400px; }
.simulator-workspace.is-embedded .simulator-stats { margin-top: 18px; }

@media (max-width: 1080px) {
  .simulator-grid { grid-template-columns: 1fr; }
  .simulator-sidebar { display: grid; grid-template-columns: 1fr 1fr; }
  .simulator-route-list { max-height: 320px; }
  .simulator-canvas { height: min(58vh, 600px); }
}
@media (max-width: 760px) {
  .simulator-hero { align-items: stretch; flex-direction: column; }
  .simulator-file-card { min-width: 0; width: 100%; }
  .simulator-file-meta strong { max-width: 52vw; }
  .simulator-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .simulator-stat:last-child { grid-column: 1 / -1; }
  .simulator-sidebar { grid-template-columns: 1fr; }
  .simulator-canvas { min-height: 420px; height: 52vh; }
  .simulator-controls { flex-wrap: wrap; }
  .sim-speed-label { margin-left: 0; }
  .simulator-workspace.is-embedded { padding-left: 14px; padding-right: 14px; }
  .simulator-workspace.is-embedded .simulator-canvas { min-height: 360px; }
}
@media (max-width: 520px) {
  .simulator-tool-shell { padding-left: 12px; padding-right: 12px; }
  .tool-chrome { align-items: flex-start; gap: 10px; }
  .tool-nav { flex-wrap: wrap; justify-content: flex-end; }
  .simulator-file-card { align-items: flex-start; flex-direction: column; }
  .simulator-file-meta strong { max-width: 80vw; }
  .simulator-stage-head { align-items: flex-start; }
  .simulator-canvas { min-height: 360px; }
}
@media (prefers-reduced-motion: reduce) {
  .sim-needle-ring { animation: none; }
  .sim-control, .sim-event-chip, .sim-route-item { transition: none; }
}