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var(--space-md)}.dash-empty-icon{font-size:3rem;margin-bottom:var(--space-sm)}.dash-empty h3{font-family:var(--font-display);font-size:1.3rem;margin-bottom:.5rem}@media(max-width:768px){.stats-row{grid-template-columns:repeat(2,1fr)}.dash-title{font-size:1.8rem}}@media(max-width:480px){.stats-row{grid-template-columns:repeat(2,1fr)}}.voltage-chart-wrap{display:flex;flex-direction:column;gap:var(--space-md)}.chart-controls{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:var(--space-sm)}.chart-stats{display:flex;gap:var(--space-md)}.chart-stat{display:flex;flex-direction:column;gap:.15rem}.chart-stat-label{font-size:.7rem;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.06em;font-weight:600}.chart-stat-value{font-family:var(--font-display);font-size:1.2rem;font-weight:700}.day-selector{display:flex;gap:.4rem}.chart-tooltip{background:#0f1012f2;border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-md);padding:.6rem 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