/* Algorithm Visualizer — styles */

html, body { overflow: hidden; }

.hub-link { text-decoration: none; font-size: 18px; margin-right: 4px; }

.toolbar-divider {
  width: 1px;
  height: 24px;
  background: var(--border-color);
  margin: 0 4px;
  flex-shrink: 0;
}

.toolbar-checkbox {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-secondary);
  user-select: none;
  padding: 0 6px;
}

.warning-chip {
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.45);
  color: #b45309;
  font-size: 11px;
  font-weight: 600;
}
[data-theme="dark"] .warning-chip { color: #fbbf24; }

.err-chip {
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(220, 38, 38, 0.12);
  border: 1px solid rgba(220, 38, 38, 0.45);
  color: var(--danger);
  font-size: 11px;
  font-weight: 600;
}

/* ── Layout ── */
.app-body.split {
  flex: 1;
  display: flex;
  overflow: hidden;
  min-height: 0;
}

.pane {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
}

.pane-source { flex: 1 1 32%; border-right: 1px solid var(--border-color); min-width: 260px; }
.pane-viz    { flex: 1 1 42%; border-right: 1px solid var(--border-color); min-width: 320px; }
.pane-vars   { flex: 1 1 26%; min-width: 260px; }

.pane-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  font-size: 12px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.7px;
  font-weight: 600;
  flex-shrink: 0;
}
.pane-header .spacer { flex: 1; }

.pane-body { flex: 1; min-height: 0; overflow: hidden; position: relative; }

/* ── Editor ── */
.editor-host { position: absolute; inset: 0; }

.algo-line-marker {
  position: absolute;
  background: rgba(249, 115, 22, 0.22);
  z-index: 2;
  border-left: 3px solid #f97316;
}
[data-theme="dark"] .algo-line-marker {
  background: rgba(249, 115, 22, 0.3);
}

/* ── Visualisation canvas ── */
.viz-wrapper {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: stretch;
  justify-content: stretch;
}
.viz-canvas { width: 100%; height: 100%; display: block; }

/* ── Timeline ── */
.timeline {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 8px 10px 10px;
  border-top: 1px solid var(--border-color);
  background: var(--bg-secondary);
}
.timeline-controls {
  display: flex;
  align-items: center;
  gap: 4px;
}
.timeline-controls .play {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.timeline-controls .play:hover { filter: brightness(0.95); }
.timeline-sep { width: 1px; height: 20px; background: var(--border-color); margin: 0 6px; }
.speed-field {
  display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text-secondary);
}
.speed-field select {
  background: var(--bg-primary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 12px;
}
.timeline-stats {
  flex: 1;
  text-align: right;
  font-size: 12px;
  color: var(--text-muted);
  font-family: 'Cascadia Code', monospace;
}
.timeline-scrub-wrap {
  position: relative;
  display: flex;
  align-items: center;
  padding: 0 2px;
}
.timeline-scrub {
  flex: 1;
  height: 10px;
  background: transparent;
  appearance: none;
  -webkit-appearance: none;
  margin: 0;
  z-index: 2;
}
.timeline-scrub::-webkit-slider-runnable-track {
  height: 4px;
  background: var(--bg-tertiary);
  border-radius: 4px;
}
.timeline-scrub::-moz-range-track {
  height: 4px;
  background: var(--bg-tertiary);
  border-radius: 4px;
}
.timeline-scrub::-webkit-slider-thumb {
  appearance: none;
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  margin-top: -5px;
  cursor: pointer;
  box-shadow: 0 1px 4px rgba(0,0,0,0.3);
}
.timeline-scrub::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  border: none;
  cursor: pointer;
}
.timeline-bar {
  position: absolute;
  left: 2px;
  right: 2px;
  top: 50%;
  height: 4px;
  transform: translateY(-50%);
  background: linear-gradient(90deg, var(--accent), transparent);
  border-radius: 4px;
  pointer-events: none;
  opacity: 0.4;
}

/* ── Variables panel ── */
.vars-panel {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px;
  font-size: 12px;
}
.vars-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 4px 8px;
  border-radius: 6px;
  background: var(--bg-secondary);
}
.vars-kind {
  font-weight: 700;
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.8px;
}
.vars-t {
  font-family: 'Cascadia Code', monospace;
  color: var(--text-muted);
}

.vars-section-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--text-muted);
  text-transform: uppercase;
  padding: 6px 4px 2px;
}

.vars-mapping {
  padding: 4px 6px 6px;
  border-bottom: 1px solid var(--border-color);
}
.map-row {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 6px;
  align-items: center;
  padding: 2px 0;
}
.map-label {
  font-size: 11px;
  color: var(--text-muted);
}
.map-input {
  background: var(--bg-primary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 3px 6px;
  font-size: 12px;
  font-family: 'Cascadia Code', monospace;
}

.vars-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-top: 4px;
}
.var-row {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 8px;
  padding: 3px 6px;
  border-radius: 4px;
  align-items: start;
}
.var-row:hover { background: var(--bg-hover); }
.var-name {
  font-family: 'Cascadia Code', monospace;
  font-weight: 600;
  color: var(--accent);
  font-size: 12px;
  word-break: break-all;
}
.var-value {
  font-family: 'Cascadia Code', monospace;
  color: var(--text-primary);
  font-size: 11px;
  word-break: break-all;
  white-space: pre-wrap;
}

.pad { padding: 10px; }
.muted { color: var(--text-muted); font-size: 12px; }

/* ── Shared toolbar fields ── */
.toolbar-field {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0 4px;
}
.toolbar-field select {
  background: var(--bg-primary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 3px 6px;
  font-size: 12px;
}

.app-title {
  font-weight: 700;
  font-size: 14px;
  color: var(--text-primary);
  padding: 0 8px 0 4px;
}
.app-title i { color: var(--accent); margin-right: 4px; }