/* Video panels */
.video-section { display: flex; flex-direction: column; gap: 16px; }

.video-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 700px) {
  .video-grid { grid-template-columns: 1fr; }
}

.video-panel {
  background: #000;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  aspect-ratio: 4/3;
}

.video-panel video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.video-label {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(0,0,0,0.65);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Video panel activity log — bottom overlay */
.vid-log {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: rgba(0,0,0,0.6);
  color: rgba(255,255,255,0.85);
  font-size: 0.67rem;
  font-family: monospace;
  padding: 3px 8px;
  display: flex;
  align-items: center;
  gap: 5px;
  z-index: 5;
  pointer-events: none;
  min-height: 20px;
}
.vid-log-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #444;
  flex-shrink: 0;
  transition: background 0.4s;
}
.vid-log.active .vid-log-dot { background: #34d399; box-shadow: 0 0 5px #34d399aa; }
.vid-log.warn   .vid-log-dot { background: #fbbf24; }
.vid-log.error  .vid-log-dot { background: #f87171; }

.video-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.8rem;
}

.video-placeholder svg { opacity: 0.3; }
.video-placeholder.hidden { display: none; }

/* Face preview */
.face-preview {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent);
  display: none;
}

.face-preview.visible { display: block; }

/* Log panel */
.log-panel {
  background: #0a0c10;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  height: 180px;
  overflow-y: auto;
  font-family: 'Cascadia Code', 'Consolas', monospace;
  font-size: 0.75rem;
  line-height: 1.6;
}

.log-info       { color: var(--muted); }
.log-success    { color: var(--success); }
.log-light-warn { color: var(--light-warn); }
.log-warn       { color: var(--warn); }
.log-error      { color: var(--danger); }
.log-data       { color: #7dd3fc; }

/* Response preview */
.response-preview {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px;
  font-family: monospace;
  font-size: 0.72rem;
  color: #7dd3fc;
  max-height: 80px;
  overflow: auto;
  display: none;
  margin-top: 8px;
  white-space: pre;
}

.response-preview.visible { display: block; }

/* Upload warning */
.upload-warning {
  margin-top: 8px;
  padding: 8px 10px;
  background: #2a1f0a;
  border: 1px solid #a05a00;
  border-radius: 6px;
  font-size: 0.75rem;
  color: var(--warn);
  line-height: 1.5;
}

.upload-warning code {
  background: rgba(255,255,255,0.08);
  padding: 1px 5px;
  border-radius: 3px;
  font-family: monospace;
}

/* ── Performance Metrics panel ───────────────────────────────── */
.metrics-panel { border-color: #1e3a2f; }

.metrics-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.session-timer {
  font-family: 'Cascadia Code', 'Consolas', monospace;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--success);
  letter-spacing: 0.05em;
}

.metrics-grid {
  display: grid;
  grid-template-columns: 80px 1fr 1fr 80px;
  gap: 6px 10px;
  align-items: center;
}

.mg-head {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
}

.mg-label {
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 600;
}

.mg-val {
  font-size: 1rem;
  font-weight: 700;
  font-family: 'Cascadia Code', 'Consolas', monospace;
  color: var(--text);
  transition: color 0.3s;
}

.mg-target {
  font-size: 0.7rem;
  color: var(--muted);
  text-align: right;
}

/* Progress bar */
.bar-track {
  height: 6px;
  background: var(--border);
  border-radius: 999px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: 999px;
  background: var(--success);
  transition: width 0.5s ease, background 0.3s;
  width: 0%;
}

/* Validation summary */
.validation-row {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.val-item {
  flex: 1;
  text-align: center;
  padding: 5px 8px;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  background: var(--border);
  color: var(--muted);
  transition: all 0.3s;
}

.val-item.pass       { background: #0f2d1f; color: var(--success);    border: 1px solid #1a5c3a; }
.val-item.light-warn { background: #2d2b0a; color: var(--light-warn); border: 1px solid #5c540a; }
.val-item.warn       { background: #2d220f; color: var(--warn);       border: 1px solid #5c440f; }
.val-item.fail       { background: #2d0f0f; color: var(--danger);     border: 1px solid #5c1a1a; }

/* Metric value colors */
.mg-val.good       { color: var(--success); }
.mg-val.light-warn { color: var(--light-warn); }
.mg-val.warn       { color: var(--warn); }
.mg-val.bad        { color: var(--danger); }

/* OBS panel */
.obs-steps {
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.obs-step {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.4;
}

.obs-num {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--border);
  color: var(--text);
  font-size: 0.7rem;
  font-weight: 700;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  margin-top: 1px;
}

.obs-panel { border-color: #2a3560; }

.vcam-method { animation: fadeIn 0.15s ease; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.method-desc {
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.5;
  margin-bottom: 12px;
}