/* =========================================================
   HIGH BAR LOW BAR — Vertical Two-Handle Slider
   All colors use CSS custom properties so both themes work.
   Interaction handled by /js/slider.js (pointer events).
   ========================================================= */

.slider-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  user-select: none;
  -webkit-user-select: none;
  padding: 0.5rem 0;
}

.slider-label {
  font-family: 'Space Mono', monospace;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-align: center;
  max-width: 140px;
  line-height: 1.3;
}

.slider-label-high { color: var(--status-open-text); }
.slider-label-low  { color: var(--status-closed-text); }

/* Track: narrow channel with tick marks */
.slider-track {
  position: relative;
  width: 12px;
  height: clamp(220px, 45vh, 320px);
  background: var(--bg-raised);
  border-radius: 6px;
  border: 1px solid var(--border-bright);
  cursor: pointer;
  /* Subtle measurement tick marks at every 10% */
  background-image: repeating-linear-gradient(
    to bottom,
    transparent,
    transparent calc(10% - 1px),
    var(--border) calc(10% - 1px),
    var(--border) 10%
  );
}

/* Left-side measurement marks */
.slider-track::before {
  content: '';
  position: absolute;
  left: -10px;
  top: 0;
  width: 6px;
  height: 100%;
  background-image: repeating-linear-gradient(
    to bottom,
    transparent,
    transparent calc(10% - 1px),
    var(--border-bright) calc(10% - 1px),
    var(--border-bright) 10%
  );
}

/* Amber fill between handles */
.slider-fill {
  position: absolute;
  left: 0;
  right: 0;
  background: var(--accent);
  border-radius: 3px;
  pointer-events: none;
  box-shadow: 0 0 12px var(--accent-glow);
}

/* Handles: circular, large enough for touch */
.slider-handle {
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 28px;
  height: 28px;
  background: var(--accent);
  border-radius: 50%;
  border: 3px solid var(--bg);
  cursor: grab;
  touch-action: none;
  transition: box-shadow 0.15s, transform 0.1s;
  z-index: 2;
}

.slider-handle:hover,
.slider-handle.dragging {
  box-shadow: 0 0 0 4px var(--accent-dim), 0 0 16px var(--accent-glow);
}

.slider-handle.dragging {
  cursor: grabbing;
  transform: translate(-50%, -50%) scale(1.1);
}

/* Numeric readouts */
.slider-readouts {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: 'Space Mono', monospace;
  font-size: 0.875rem;
  color: var(--text);
}

.readout {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--accent);
  min-width: 2ch;
  text-align: center;
  line-height: 1;
}

.readout-sep {
  font-size: 0.7rem;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

@media (max-width: 480px) {
  .slider-handle { width: 36px; height: 36px; }
  .slider-track  { width: 14px; }
}