:root{--bg:#f1f5f9;--text:#1e293b;--text-secondary:#475569;--text-muted:#64748b;--text-label:#334155;--card-bg:#fff;--card-border:#e2e8f0;--card-hover-shadow:rgba(0,0,0,.06);--input-border:#cbd5e1;--divider:#e2e8f0;--connector-line:#94a3b8;--toggle-off:#cbd5e1;--select-bg:#fff}[data-theme=dark]{--bg:#0f172a;--text:#e2e8f0;--text-secondary:#94a3b8;--text-muted:#94a3b8;--text-label:#cbd5e1;--card-bg:#1e293b;--card-border:#334155;--card-hover-shadow:rgba(0,0,0,.3);--input-border:#475569;--divider:#334155;--connector-line:#64748b;--toggle-off:#475569;--select-bg:#1e293b}body,html{padding:0;margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:inherit;text-decoration:none}*{box-sizing:border-box}.chart-container{width:100%;height:40vh;min-height:300px;position:relative;padding:4px 0;display:flex;flex-direction:column}.chart-container canvas{flex:1 1;min-height:0}.chart-title{font-size:.8125rem;font-weight:600;color:var(--text-secondary);margin:0 0 4px;letter-spacing:-.01em}.chart-card{background:var(--card-bg);border-radius:12px;border:1px solid var(--card-border);padding:20px;transition:box-shadow .15s ease}.chart-card:hover{box-shadow:0 4px 12px var(--card-hover-shadow)}@media (max-width:600px){.chart-container{height:300px;min-height:unset}.chart-card{padding:16px}}