/* ── Chart Modal (desktop only) ──────────── */

.chart-modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 1000;
  justify-content: center;
  align-items: center;
}
.chart-modal-overlay.open {
  display: flex;
}
.chart-modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius, 14px);
  width: min(90vw, 900px);
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6);
}
.chart-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.chart-modal-title {
  display: flex;
  align-items: center;
  gap: 12px;
}
.chart-modal-title .symbol {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.3px;
}
.chart-modal-title .price {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
}
.chart-modal-close {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}
.chart-modal-close:hover {
  background: var(--red-bg);
  border-color: var(--red);
  color: var(--red);
}
.chart-tf-bar {
  display: flex;
  gap: 4px;
  padding: 10px 20px;
  border-bottom: 1px solid var(--border);
}
.chart-tf-btn {
  padding: 4px 12px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}
.chart-tf-btn:hover {
  border-color: var(--border-light);
  color: var(--text);
}
.chart-tf-btn.active {
  background: var(--blue-bg);
  border-color: var(--blue);
  color: var(--blue);
}
.chart-body {
  flex: 1;
  padding: 12px;
  height: 420px;
  position: relative;
}
.chart-body canvas {
  display: block;
}
.chart-loading {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}
@media (max-width: 768px) {
  .chart-modal-overlay {
    display: none !important;
  }
  .coin-card {
    cursor: default;
  }
}
@media (min-width: 769px) {
  .coin-card {
    cursor: pointer;
  }
  .coin-card:hover {
    border-color: var(--blue);
  }
}