/* ══════════════════════════════════════════════════════════
   charts.css — Global chart animation & interaction tokens
   ══════════════════════════════════════════════════════════
   Single source of truth for all chart transitions, hover
   states, and keyframe animations. Link from every page:
   <link rel="stylesheet" href="charts.css">
   ════════════════════════════════════════════════════════ */

/* ── TIMING TOKENS ── */
:root {
  --chart-ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --chart-duration: 0.8s;
  --chart-duration-slow: 1s;
  --chart-hover-speed: 0.25s;
  --chart-stagger: 0.06s;           /* per-bar stagger delay */
}

/* ── BAR CHARTS ── */
.bar-rect {
  fill: var(--accent);
  rx: 3;
  transform-origin: bottom;
  transform: scaleY(0);
  transition: transform var(--chart-duration) var(--chart-ease);
}
.bar-rect.animate { transform: scaleY(1); }

.bar-label {
  fill: var(--text-muted);
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  text-anchor: middle;
}

.bar-value {
  fill: var(--text-dim);
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 13px;
  font-weight: 700;
  text-anchor: middle;
}

.grid-line {
  stroke: var(--border);
  stroke-width: 0.5;
  stroke-dasharray: 4 4;
}

.axis-label {
  fill: var(--text-muted);
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  text-anchor: end;
}

/* Horizontal bar fills (CSR compare bars, funnel bars, progress bars) */
.bar-fill {
  transition: width var(--chart-duration) var(--chart-ease);
}

/* ── DONUT CHARTS — SEGMENTED (multi-slice) ── */
.donut-segment,
.drill-donut-segment,
.csr-donut-segment {
  fill: none;
  stroke-linecap: butt;
  cursor: pointer;
  transition:
    stroke-dasharray  var(--chart-duration) var(--chart-ease),
    stroke-dashoffset var(--chart-duration) var(--chart-ease),
    stroke            0.6s ease,
    stroke-width      var(--chart-hover-speed) ease,
    opacity           var(--chart-hover-speed) ease;
}
.donut-segment.highlighted,
.drill-donut-segment.highlighted,
.csr-donut-segment.highlighted { stroke-width: calc(var(--donut-stroke, 20) * 1.3); }
.donut-segment.dimmed,
.drill-donut-segment.dimmed,
.csr-donut-segment.dimmed      { opacity: 0.25; }
.donut-segment:hover,
.drill-donut-segment:hover,
.csr-donut-segment:hover       { stroke-width: calc(var(--donut-stroke, 20) * 1.3); }

/* ── DONUT CHARTS — PROGRESS RING (single-arc fill) ── */
.donut-fill,
.est-donut-fill {
  fill: none;
  stroke-linecap: round;
  transition:
    stroke-dashoffset var(--chart-duration-slow) var(--chart-ease),
    stroke            0.6s ease;
}

/* ── DONUT SLICES (path-based, business/office/calls pages) ── */
.donut-slice {
  cursor: pointer;
  transform-origin: center;
  transform-box: fill-box;
  transition:
    opacity   0.2s ease,
    transform 0.2s ease;
}
.donut-slice.expanded { transform: scale(1.08); }

/* ── SHARED KEYFRAMES ── */
@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.3; transform: scale(0.6); }
}

/* ── LOADING SPINNER ── */
.spinner {
  width: 28px;
  height: 28px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 16px;
}