.tool-panel {
  max-width: 48rem;
  margin: 0 auto 2rem;
  padding: 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
}
.tool-panel label {
  display: block;
  font-size: 0.88rem;
  margin-bottom: 0.35rem;
  color: var(--text-muted);
}
.tool-panel textarea,
.tool-panel input[type="text"],
.tool-panel input[type="number"] {
  width: 100%;
  font-family: ui-monospace, monospace;
  font-size: 0.9rem;
  padding: 0.65rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
  color: var(--text);
  margin-bottom: 0.75rem;
}
.tool-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}
.csv-table-wrap {
  overflow-x: auto;
  margin-top: 0.5rem;
}
.csv-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
.csv-table th,
.csv-table td {
  border: 1px solid var(--border);
  padding: 0.4rem 0.55rem;
  text-align: left;
}
.csv-table th {
  background: var(--bg);
  font-weight: 600;
}
.tool-output {
  white-space: pre-wrap;
  font-family: ui-monospace, monospace;
  font-size: 0.85rem;
  padding: 0.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  min-height: 4rem;
}
.tool-error { color: #c62828; }

.speed-calc {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  max-width: 68rem;
  margin: 0 auto 2rem;
  align-items: flex-start;
}
.speed-calc__video { flex: 1 1 28rem; min-width: 0; width: 100%; }
.speed-calc__stage {
  position: relative;
  background: #000;
  border-radius: 6px;
  overflow: hidden;
  min-height: 16rem;
  scroll-margin-top: 5rem;
}
.speed-calc__stage--interactive {
  outline: 2px solid #2563eb;
  outline-offset: 2px;
}
.speed-calc__stage-hint {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 3;
  margin: 0;
  padding: 0.5rem 0.75rem;
  background: rgba(37, 99, 235, 0.92);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  text-align: center;
  pointer-events: none;
}
.speed-calc__stage video {
  width: 100%;
  display: none;
  vertical-align: top;
  position: relative;
  z-index: 1;
}
.speed-calc__stage--has-video .speed-calc__placeholder { display: none !important; }
.speed-calc__stage--has-video video { display: block; }
.speed-calc__placeholder {
  min-height: 16rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}
.speed-calc__stage canvas {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}
.speed-calc__stage--interactive canvas {
  pointer-events: auto;
}
.speed-calc__time {
  font-size: 0.85rem;
  margin: 0 0 0.5rem;
  color: var(--text-muted);
}
.speed-calc__panel { flex: 1 1 18rem; margin: 0; }
.speed-calc__block { margin-bottom: 1rem; }
.speed-calc__label { display: block; font-weight: 600; margin-bottom: 0.35rem; font-size: 0.88rem; }
.speed-calc__hint { font-size: 0.8rem; color: var(--text-muted); margin: 0.35rem 0 0; }
.speed-calc__full { width: 100%; margin-bottom: 0.5rem; }
.speed-calc__status {
  margin-top: 1rem;
  padding: 0.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.9rem;
}
.speed-calc__results {
  margin-top: 0.75rem;
  padding: 0.75rem;
  background: #d1fae5;
  border-radius: 4px;
  font-size: 0.9rem;
}
.speed-calc__results h3 { margin: 0 0 0.5rem; font-size: 1rem; }
[data-theme="dark"] .speed-calc__results { background: #064e3b; color: #ecfdf5; }

@media (max-width: 56rem) {
  .speed-calc {
    flex-direction: column;
  }
  .speed-calc__video,
  .speed-calc__panel {
    flex: 1 1 100%;
    max-width: 100%;
  }
  .speed-calc__stage--interactive {
    position: sticky;
    top: 4.5rem;
    z-index: 20;
  }
}