/* ── Single Page — Desktop 2-column split layout ───────────────────── */
.single-layout { display: flex; flex-direction: column; gap: 16px; }
.single-left   { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.single-right  { display: flex; flex-direction: column; gap: 16px; }

/* Desktop 2-column — scales up as viewport grows */
@media (min-width: 860px) {
  .single-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    align-items: start;
    gap: 20px;
  }
  /* Right panel: sticky + its own scroll — stays visible while charts scroll */
  .single-right {
    position: sticky;
    top: 0;
    max-height: calc(100vh - 60px - 48px);
    overflow-y: auto;
    scrollbar-width: none;          /* Firefox */
    -ms-overflow-style: none;       /* IE/Edge */
  }
  .single-right::-webkit-scrollbar { display: none; }  /* Chrome/Safari */
}
@media (min-width: 1000px) {
  .single-layout { grid-template-columns: 1fr 320px; gap: 22px; }
}
@media (min-width: 1200px) {
  .single-layout { grid-template-columns: 1fr 360px; gap: 24px; }
}
@media (min-width: 1400px) {
  .single-layout { grid-template-columns: 1fr 400px; }
}

.chart-card { padding: 22px 24px; }
.chart-card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 18px;
}
.chart-title { font-size: 14px; font-weight: 700; color: var(--text); letter-spacing: -0.3px; }
.chart-subtitle { font-size: 11.5px; color: var(--muted); margin-top: 3px; }
.chart-wrap canvas { max-height: 255px; }
.zoom-hint { font-size: 10.5px; color: var(--muted); margin-top: 8px; text-align: right; }

/* ── Compare Grid ───────────────────────────────────────────────────── */
.compare-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 1200px) { .compare-grid { grid-template-columns: 1fr 1fr; } }