/* =========================================================
   /PLATFORM — Floating "Unique visitors" animated chart
   Markup: .platform-graph > .pg-card
   ========================================================= */

.pg-card {
  background: #fff;
  border-radius: var(--b-radius-10);
  padding: 18px 18px 14px;
  font-family: var(--font);
  color: var(--ink);
  aspect-ratio: 272 / 202;
  display: flex;
  flex-direction: column;
}
.pg-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}
.pg-title { font-size: 13px; color: var(--gray-700); font-weight: var(--fw-medium); }
.pg-trend { font-size: 12px; color: var(--accent); font-weight: var(--fw-medium); }
.pg-val {
  font-size: 22px;
  font-weight: var(--fw-semibold);
  letter-spacing: -0.02em;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 10px;
}
.pg-arrow { width: 14px; height: 14px; color: var(--accent); }

.pg-chart {
  flex: 1;
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 6px;
  min-height: 0;
}
.pg-yaxis {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  font-size: 9px;
  color: var(--gray-500);
  font-family: var(--mono);
  padding: 2px 0;
}
.pg-grid {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.pg-grid-line {
  height: 1px;
  background: var(--gray-200);
  width: 100%;
}
.pg-bars {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  align-items: end;
  padding: 0 4px;
  gap: 4px;
}
.pg-col {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 3px;
  height: 100%;
  padding: 0 4px;
}
.pg-bar {
  flex: 1;
  max-width: 16px;
  border-radius: 4px 4px 0 0;
  height: var(--h, 40%);
  transform-origin: bottom center;
  animation: pg-bar-bob var(--d, 4s) ease-in-out var(--o, 0s) infinite;
  will-change: transform;
}
.pg-bar-dark  { background: var(--accent); }
.pg-bar-light { background: #C7D4FF; }

@keyframes pg-bar-bob {
  0%, 100% { transform: scaleY(1); }
  25%      { transform: scaleY(1.18); }
  55%      { transform: scaleY(0.82); }
  78%      { transform: scaleY(1.08); }
}
@media (prefers-reduced-motion: reduce) {
  .pg-bar { animation: none; }
}

.pg-xaxis {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding-left: 28px;
  margin-top: 6px;
  font-size: 9px;
  font-family: var(--mono);
  color: var(--gray-500);
  text-align: center;
}