/* Strategy Lab — owner: ui-lab. A mixing console: faders, LEDs, value bubbles. */

.lab-root {
  --lab-w-compression: #6c8cff;
  --lab-w-breakout: var(--up, #ff4d5e);
  --lab-w-alignment: #c77dff;
  --lab-w-volume: #f5b544;
  --lab-w-probability: #43c6d9;
  --lab-track: color-mix(in srgb, var(--text, #e7edf8) 9%, transparent);
  --lab-fill: var(--accent, #6c8cff);
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 12px 12px 28px;
  font-size: var(--fs-sm, 12.5px);
  color: var(--text, #e7edf8);
  user-select: none;
  -webkit-user-select: none;
}

.lab-root > * { flex-shrink: 0; }

/* ---------- header */
.lab-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.lab-title {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}
.lab-title strong {
  font-size: var(--fs-lg, 15px);
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.lab-led {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--down, #1fcb7e);
  box-shadow: 0 0 8px var(--down, #1fcb7e);
  flex-shrink: 0;
  animation: lab-led 2.4s ease-in-out infinite;
}
@keyframes lab-led {
  50% { opacity: 0.45; }
}
.lab-scaninfo {
  font-family: var(--font-mono, ui-monospace);
  font-size: var(--fs-2xs, 10.5px);
  color: var(--muted, #8190ac);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.lab-scaninfo.fast::after { content: " ⚡"; }

.lab-diff-wrap { position: relative; }
.lab-diff-badge {
  font: inherit;
  font-size: var(--fs-2xs, 10.5px);
  padding: 3px 8px;
  border-radius: var(--r-pill, 999px);
  border: 1px solid var(--border, rgba(150, 172, 230, 0.11));
  background: transparent;
  color: var(--muted, #8190ac);
  cursor: pointer;
  white-space: nowrap;
}
.lab-diff-badge.dirty {
  color: var(--warn, #f5b544);
  border-color: color-mix(in srgb, var(--warn, #f5b544) 50%, transparent);
  background: var(--warn-soft, rgba(245, 181, 68, 0.14));
}
.lab-diff-pop {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  z-index: 30;
  width: 272px;
  max-height: 340px;
  overflow: auto;
  padding: 10px;
  border-radius: var(--r-md, 9px);
  background: var(--panel-solid, #0d1427);
  border: 1px solid var(--border-strong, rgba(150, 172, 230, 0.22));
  box-shadow: var(--shadow-2);
}
.lab-diff-pop ul { list-style: none; margin: 0 0 8px; padding: 0; }
.lab-diff-pop li {
  display: grid;
  grid-template-columns: 1fr auto auto auto auto;
  gap: 6px;
  align-items: center;
  padding: 4px 0;
  border-bottom: 1px dashed var(--border, rgba(150, 172, 230, 0.11));
  font-size: var(--fs-xs, 11.5px);
}
.lab-diff-pop .from { color: var(--muted); text-decoration: line-through; font-family: var(--font-mono); }
.lab-diff-pop .to { color: var(--warn, #f5b544); font-family: var(--font-mono); }
.lab-diff-pop .arrow { color: var(--faint, #56627c); }
.lab-mini {
  font: inherit;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}
.lab-mini:hover { color: var(--text); border-color: var(--border-strong); }
.lab-empty { color: var(--muted); margin: 4px 0; }

/* ---------- presets / pills */
.lab-presets { display: flex; flex-wrap: wrap; gap: 6px; }
.lab-pill {
  font: inherit;
  font-size: var(--fs-xs, 11.5px);
  padding: 4px 11px;
  border-radius: var(--r-pill, 999px);
  border: 1px solid var(--border, rgba(150, 172, 230, 0.11));
  background: var(--panel-2, rgba(22, 32, 58, 0.72));
  color: var(--text-2, #b9c4da);
  cursor: pointer;
  transition: background var(--dur-1, 120ms), color var(--dur-1, 120ms), border-color var(--dur-1, 120ms);
}
.lab-pill:hover { color: var(--text); border-color: var(--border-strong); }
.lab-pill.on {
  background: var(--accent-soft, rgba(108, 140, 255, 0.16));
  border-color: var(--accent, #6c8cff);
  color: var(--accent-strong, #8aa4ff);
  box-shadow: 0 0 0 1px var(--accent-soft), 0 0 14px -4px var(--accent-glow, rgba(108, 140, 255, 0.45));
}
.lab-pill.small { padding: 2px 8px; font-size: var(--fs-2xs, 10.5px); }
.lab-pill:focus-visible,
.lab-seg-btn:focus-visible,
.lab-toggle:focus-visible,
.lab-diff-badge:focus-visible { outline: none; box-shadow: var(--ring); }

.lab-root.preset-flash .lab-slider .ls-thumb { animation: lab-pop 420ms var(--ease-spring, ease-out); }
@keyframes lab-pop {
  40% { transform: translate(-50%, -50%) scale(1.35); }
}

/* ---------- sections */
.lab-section h3 {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin: 2px 0 8px;
  font-size: var(--fs-xs, 11.5px);
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--text-2, #b9c4da);
}
.lab-section h3 small {
  font-weight: 400;
  letter-spacing: 0;
  color: var(--faint, #56627c);
  font-size: var(--fs-2xs, 10.5px);
}

/* ---------- live backtest card */
.bt-card {
  position: relative;
  border-radius: var(--r-lg, 14px);
  padding: 10px 12px;
  background:
    radial-gradient(120% 90% at 100% 0%, var(--accent-soft, rgba(108, 140, 255, 0.16)) 0%, transparent 60%),
    var(--panel-2, rgba(22, 32, 58, 0.72));
  border: 1px solid var(--border-strong, rgba(150, 172, 230, 0.22));
  box-shadow: var(--shadow-1);
  overflow: hidden;
}
.bt-card::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  transform: translateX(-100%);
  opacity: 0;
}
.bt-card.loading::before {
  opacity: 1;
  animation: bt-scan 900ms linear infinite;
}
@keyframes bt-scan {
  to { transform: translateX(100%); }
}
.bt-card.loading .bt-grid { opacity: 0.6; transition: opacity 200ms; }
.bt-card.error { border-color: color-mix(in srgb, var(--danger, #ff6b6b) 50%, transparent); }
.bt-head {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
}
.bt-head strong { font-size: var(--fs-sm); letter-spacing: 0.06em; }
.bt-horizons { display: flex; gap: 3px; margin-left: 2px; }
.bt-badge {
  margin-left: auto;
  font-size: 11.5px;
  padding: 2px 8px;
  border-radius: var(--r-pill, 999px);
  white-space: nowrap;
  border: 1px solid transparent;
  cursor: help;
}
.bt-badge:empty { display: none; }
.bt-badge.low { color: var(--warn); background: var(--warn-soft); border-color: color-mix(in srgb, var(--warn) 40%, transparent); }
.bt-badge.sig { color: var(--up); background: var(--up-soft); border-color: color-mix(in srgb, var(--up) 45%, transparent); box-shadow: 0 0 12px -4px var(--up); }
.bt-badge.neg { color: var(--down); background: var(--down-soft); border-color: color-mix(in srgb, var(--down) 45%, transparent); }
.bt-badge.weak { color: var(--muted); background: color-mix(in srgb, var(--muted) 12%, transparent); }
.bt-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px 8px;
}
.bt-cell { display: flex; flex-direction: column; min-width: 0; }
.bt-cell span { font-size: var(--fs-2xs, 10.5px); color: var(--muted); white-space: nowrap; }
.bt-v {
  font-family: var(--font-mono, ui-monospace);
  font-variant-numeric: tabular-nums;
  font-size: var(--fs-lg, 15px);
  font-weight: 600;
  line-height: 1.25;
  white-space: nowrap;
}
.bt-v.up { color: var(--up); }
.bt-v.down { color: var(--down); }
.bt-cell.edge .bt-v { font-size: var(--fs-xl, 18px); }
.bt-foot { display: flex; flex-direction: column; gap: 4px; margin-top: 8px; }
.bt-spark { width: 100%; height: 38px; display: block; }
.bt-side { display: flex; justify-content: space-between; gap: 8px; min-width: 0; }
.bt-status { text-align: right; margin-left: auto; }
.bt-ci, .bt-status { font-size: var(--fs-2xs, 10.5px); color: var(--muted); line-height: 1.35; }
.bt-ci { color: var(--text-2); font-family: var(--font-mono); }

/* ---------- slider */
.lab-param { padding: 6px 0 4px; }
.lab-param-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 2px;
}
.lab-param-head label { color: var(--text-2, #b9c4da); font-size: var(--fs-xs, 11.5px); }
.lab-param-value {
  font-family: var(--font-mono, ui-monospace);
  font-variant-numeric: tabular-nums;
  font-size: var(--fs-xs, 11.5px);
  color: var(--text);
  transition: color var(--dur-2, 220ms);
}
.lab-param:has(.lab-slider.changed) .lab-param-value { color: var(--warn, #f5b544); }
.lab-param-help {
  font-size: var(--fs-2xs, 10.5px);
  color: var(--faint, #56627c);
  line-height: 1.4;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--dur-3, 380ms) var(--ease-out);
}
.lab-param:hover .lab-param-help,
.lab-param:focus-within .lab-param-help { max-height: 60px; }

.lab-slider {
  position: relative;
  height: 22px;
  cursor: pointer;
  touch-action: none;
  outline: none;
  border-radius: 6px;
}
.lab-slider .ls-track {
  position: absolute;
  left: 7px;
  right: 7px;
  top: 50%;
  height: 4px;
  transform: translateY(-50%);
  border-radius: 4px;
  background: var(--lab-track);
}
.lab-slider .ls-ticks {
  position: absolute;
  inset: -4px 0;
  display: flex;
  justify-content: space-between;
  pointer-events: none;
}
.lab-slider .ls-ticks i {
  width: 1px;
  height: 3px;
  margin-top: 9px;
  background: var(--faint, #56627c);
  opacity: 0.35;
}
.lab-slider .ls-ticks i.major { height: 5px; margin-top: 8px; opacity: 0.55; }
.lab-slider .ls-fill {
  position: absolute;
  top: 0;
  bottom: 0;
  border-radius: 4px;
  background: var(--lab-fill);
  opacity: 0;
  transition: opacity var(--dur-2, 220ms);
}
.lab-slider.changed .ls-fill {
  opacity: 1;
  background: linear-gradient(90deg, color-mix(in srgb, var(--warn, #f5b544) 55%, transparent), var(--warn, #f5b544));
  box-shadow: 0 0 10px -2px var(--warn, #f5b544);
}
.lab-slider.changed:not(.above) .ls-fill {
  background: linear-gradient(270deg, color-mix(in srgb, var(--warn, #f5b544) 55%, transparent), var(--warn, #f5b544));
}
.lab-slider .ls-default {
  position: absolute;
  top: -6px;
  width: 2px;
  height: 16px;
  margin-left: -1px;
  border-radius: 2px;
  background: var(--text-2, #b9c4da);
  opacity: 0.55;
}
.lab-slider .ls-default::after {
  content: "";
  position: absolute;
  left: -3px;
  top: -4px;
  border: 4px solid transparent;
  border-top-color: var(--text-2, #b9c4da);
}
.lab-slider .ls-thumb {
  position: absolute;
  top: 50%;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle at 35% 30%, #fff 0%, #dfe6f7 45%, #aab6d3 100%);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.5), 0 0 0 3px var(--accent-soft, rgba(108, 140, 255, 0.16));
  transition: box-shadow var(--dur-1, 120ms), transform var(--dur-1, 120ms);
}
.lab-slider:hover .ls-thumb { box-shadow: 0 1px 3px rgba(0, 0, 0, 0.5), 0 0 0 5px var(--accent-soft); }
.lab-slider:focus-visible { outline: none; box-shadow: none; }
.lab-slider.kb:focus .ls-thumb { box-shadow: 0 0 0 2px var(--bg), 0 0 0 4px var(--accent); }
.lab-slider.dragging .ls-thumb {
  transform: translate(-50%, -50%) scale(1.15);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.5), 0 0 0 7px var(--accent-soft), 0 0 18px var(--accent-glow);
}
.lab-slider.changed .ls-thumb { box-shadow: 0 1px 3px rgba(0, 0, 0, 0.5), 0 0 0 3px var(--warn-soft, rgba(245, 181, 68, 0.14)); }
.lab-slider .ls-bubble {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translate(-50%, 4px) scale(0.85);
  padding: 2px 7px;
  border-radius: 6px;
  background: var(--accent, #6c8cff);
  color: var(--on-accent, #050814);
  font-family: var(--font-mono, ui-monospace);
  font-size: var(--fs-2xs, 10.5px);
  font-weight: 700;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-1, 120ms), transform var(--dur-2, 220ms) var(--ease-spring);
  z-index: 3;
}
.lab-slider .ls-bubble::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 100%;
  margin-left: -4px;
  border: 4px solid transparent;
  border-top-color: var(--accent, #6c8cff);
}
.lab-slider.dragging .ls-bubble,
.lab-slider.kb:focus .ls-bubble {
  opacity: 1;
  transform: translate(-50%, 0) scale(1);
}
.lab-slider.reset-pulse .ls-thumb { animation: lab-pop 400ms var(--ease-spring, ease-out); }

/* ---------- vertical fader (mixer) */
.lab-slider.vertical {
  width: 26px;
  height: 108px;
}
.lab-slider.vertical .ls-track {
  left: 50%;
  right: auto;
  top: 8px;
  bottom: 8px;
  width: 6px;
  height: auto;
  transform: translateX(-50%);
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.35), rgba(0, 0, 0, 0.15));
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.6);
}
.lab-slider.vertical .ls-ticks {
  inset: 0 -9px;
  flex-direction: column-reverse;
}
.lab-slider.vertical .ls-ticks i {
  width: 4px;
  height: 1px;
  margin: 0;
}
.lab-slider.vertical .ls-ticks i.major { width: 7px; height: 1px; margin: 0 0 0 -1.5px; }
.lab-slider.vertical .ls-fill {
  left: 0;
  right: 0;
  top: auto;
  opacity: 1;
  background: linear-gradient(0deg, color-mix(in srgb, var(--strip-color) 30%, transparent), var(--strip-color));
  box-shadow: 0 0 10px -3px var(--strip-color);
}
.lab-slider.vertical.changed .ls-fill {
  background: linear-gradient(0deg, color-mix(in srgb, var(--strip-color) 30%, transparent), var(--strip-color));
}
.lab-slider.vertical .ls-default {
  top: auto;
  left: -5px;
  width: 16px;
  height: 2px;
  margin: 0 0 -1px;
}
.lab-slider.vertical .ls-default::after {
  left: -8px;
  top: -3px;
  border: 4px solid transparent;
  border-left-color: var(--text-2);
  border-top-color: transparent;
}
.lab-slider.vertical .ls-thumb {
  left: 50%;
  top: auto;
  width: 24px;
  height: 12px;
  border-radius: 3px;
  transform: translate(-50%, 50%);
  background: linear-gradient(180deg, #f3f6fd 0%, #cfd8ec 46%, #8e9aba 50%, #cfd8ec 54%, #eef2fb 100%);
}
.lab-slider.vertical.dragging .ls-thumb { transform: translate(-50%, 50%) scale(1.08); }
.lab-slider.vertical .ls-bubble { bottom: auto; top: 50%; left: calc(100% + 8px); transform: translate(0, -50%) scale(0.85); }
.lab-slider.vertical .ls-bubble::after { left: -4px; top: 50%; margin: -4px 0 0 -4px; border-top-color: transparent; border-right-color: var(--accent); }
.lab-slider.vertical.dragging .ls-bubble,
.lab-slider.vertical.kb:focus .ls-bubble { transform: translate(0, -50%) scale(1); }

.lab-mixer {
  padding: 10px 8px 10px;
  border-radius: var(--r-lg, 14px);
  background:
    repeating-linear-gradient(90deg, transparent 0 3px, rgba(255, 255, 255, 0.012) 3px 4px),
    linear-gradient(180deg, var(--panel-2), color-mix(in srgb, var(--panel-2) 60%, transparent));
  border: 1px solid var(--border);
}
.lab-mixer-strips {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 2px;
}
.lab-strip {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  min-width: 0;
}
.lab-strip-value {
  font-family: var(--font-mono);
  font-size: var(--fs-2xs, 10.5px);
  font-variant-numeric: tabular-nums;
  color: var(--text-2);
  padding: 1px 4px;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.25);
  min-width: 34px;
  text-align: center;
}
.lab-strip:has(.changed) .lab-strip-value { color: var(--warn); }
.lab-strip-body { display: flex; align-items: stretch; gap: 5px; }
.lab-strip-meter {
  position: relative;
  width: 4px;
  margin: 8px 0;
  border-radius: 2px;
  background: rgba(0, 0, 0, 0.3);
  overflow: hidden;
}
.lab-strip-meter i {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 0;
  background: linear-gradient(0deg, var(--down, #1fcb7e) 0%, var(--warn, #f5b544) 70%, var(--up, #ff4d5e) 100%);
  background-size: 100% 90px;
  background-position: bottom;
  transition: height var(--dur-3, 380ms) var(--ease-out);
}
.lab-strip-label {
  font-size: var(--fs-2xs, 10.5px);
  color: var(--strip-color);
  font-weight: 600;
  letter-spacing: 0.06em;
}
.lab-stack {
  display: flex;
  height: 16px;
  margin-top: 10px;
  border-radius: 5px;
  overflow: hidden;
  background: var(--lab-track);
}
.lab-stack-seg {
  flex: 0 1 0;
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: flex-grow var(--dur-3, 380ms) var(--ease-out);
  box-shadow: inset -1px 0 0 rgba(0, 0, 0, 0.35);
}
.lab-stack-seg span { font-size: 9.5px; font-weight: 700; color: rgba(0, 0, 0, 0.62); }
.lab-stack-seg.zero span { display: none; }
.lab-stack-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 2px 10px;
  margin-top: 6px;
  font-size: var(--fs-2xs, 10.5px);
  color: var(--muted);
}
.lab-stack-item { display: inline-flex; align-items: center; gap: 4px; }
.lab-stack-item i { width: 7px; height: 7px; border-radius: 2px; }
.lab-stack-item b { color: var(--text-2); font-family: var(--font-mono); font-weight: 500; }
.lab-mixer-note { margin-top: 6px; font-size: var(--fs-2xs, 10.5px); color: var(--faint); line-height: 1.4; }

/* ---------- filters */
.lab-filters { display: flex; flex-direction: column; gap: 8px; }
.lab-filter-row { display: flex; align-items: center; gap: 10px; }
.lab-filter-label { font-size: var(--fs-xs); color: var(--text-2); }
.lab-seg {
  display: inline-flex;
  padding: 2px;
  border-radius: var(--r-pill);
  background: rgba(0, 0, 0, 0.22);
  border: 1px solid var(--border);
}
.lab-seg-btn {
  font: inherit;
  font-size: var(--fs-xs);
  padding: 3px 12px;
  border: 0;
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: background var(--dur-1), color var(--dur-1);
}
.lab-seg-btn.on { background: var(--accent-soft); color: var(--accent-strong); }
.lab-toggles { display: flex; flex-wrap: wrap; gap: 6px; }
.lab-toggle {
  font: inherit;
  font-size: var(--fs-xs);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px 4px 5px;
  border-radius: var(--r-pill);
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text-2);
  cursor: pointer;
}
.lab-switch {
  position: relative;
  width: 22px;
  height: 12px;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.35);
  box-shadow: inset 0 0 0 1px var(--border-strong);
  transition: background var(--dur-2);
}
.lab-switch::after {
  content: "";
  position: absolute;
  left: 2px;
  top: 2px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--muted);
  transition: transform var(--dur-2) var(--ease-spring), background var(--dur-2);
}
.lab-toggle.on { color: var(--text); border-color: color-mix(in srgb, var(--accent) 50%, transparent); }
.lab-toggle.on .lab-switch { background: var(--accent-soft); }
.lab-toggle.on .lab-switch::after { transform: translateX(10px); background: var(--accent); box-shadow: 0 0 6px var(--accent); }

/* ---------- groups */
.lab-groups { display: flex; flex-direction: column; gap: 4px; }
.lab-group {
  border-radius: var(--r-md, 9px);
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--panel-2) 55%, transparent);
}
.lab-group > summary {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 10px;
  cursor: pointer;
  list-style: none;
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--text-2);
  letter-spacing: 0.08em;
}
.lab-group > summary::-webkit-details-marker { display: none; }
.lab-group > summary::before {
  content: "▸";
  font-size: 9px;
  color: var(--faint);
  transition: transform var(--dur-2);
}
.lab-group[open] > summary::before { transform: rotate(90deg); }
.lab-group-count {
  margin-left: auto;
  min-width: 16px;
  height: 16px;
  padding: 0 5px;
  border-radius: 8px;
  background: var(--warn-soft);
  color: var(--warn);
  font-size: 10px;
  line-height: 16px;
  text-align: center;
  font-family: var(--font-mono);
}
.lab-group-count:empty { display: none; }
.lab-group-body { padding: 0 10px 6px; }

@media (prefers-reduced-motion: reduce) {
  .lab-led,
  .bt-card.loading::before,
  .lab-root.preset-flash .lab-slider .ls-thumb,
  .lab-slider.reset-pulse .ls-thumb { animation: none; }
}
/* 類型 filter: 7 buttons — allow wrapping inside the narrow lab column */
.lab-seg--wrap { flex-wrap: wrap; border-radius: var(--r-md, 10px); row-gap: 2px; }
.lab-seg--wrap .lab-seg-btn { padding: 3px 9px; }
.lab-filter-label { flex: 0 0 auto; }