:root {
    --dv-grid-color: rgba(255, 255, 255, 0.06);
    --dv-tick-color: rgba(255, 255, 255, 0.5);
    --dv-axis-label-color: rgba(255, 255, 255, 0.7);
    --dv-tooltip-bg: rgba(15, 23, 42, 0.95);
    --dv-tooltip-border: rgba(255, 255, 255, 0.08);
}

[data-theme="light"] {
    --dv-grid-color: rgba(0, 0, 0, 0.08);
    --dv-tick-color: #718096;
    --dv-axis-label-color: #4a5568;
    --dv-tooltip-bg: rgba(255, 255, 255, 0.95);
    --dv-tooltip-border: rgba(0, 0, 0, 0.1);
}

.dv-sparkline {
    overflow: visible;
}

.dv-sparkline-line {
    fill: none;
    stroke: var(--accent-purple-muted, #a78bfa);
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.dv-sparkline-fill {
    fill: var(--purple-bg-subtle, rgba(139, 92, 246, 0.08));
    stroke: none;
}

.dv-sparkline--success .dv-sparkline-line { stroke: var(--accent-green, #4ade80); }
.dv-sparkline--success .dv-sparkline-fill { fill: var(--green-bg-subtle, rgba(34, 197, 94, 0.15)); }

.dv-sparkline--warning .dv-sparkline-line { stroke: var(--accent-yellow, #fbbf24); }
.dv-sparkline--warning .dv-sparkline-fill { fill: var(--yellow-bg-subtle, rgba(245, 158, 11, 0.15)); }

.dv-sparkline--danger .dv-sparkline-line { stroke: var(--accent-red, #f87171); }
.dv-sparkline--danger .dv-sparkline-fill { fill: var(--red-bg-subtle, rgba(239, 68, 68, 0.15)); }

.dv-sparkline-tooltip {
    position: absolute;
    pointer-events: none;
    background: var(--dark-surface-bg, rgba(15, 23, 42, 0.98));
    border: 1px solid var(--border-color, rgba(255, 255, 255, 0.08));
    border-radius: var(--border-radius-sm, 6px);
    padding: 4px 8px;
    font-size: 11px;
    color: var(--text-primary, #fff);
    white-space: nowrap;
    z-index: 100;
    transform: translateX(-50%);
}

.dv-sparkline-dot {
    fill: var(--accent-purple-muted, #a78bfa);
    stroke: var(--dark-surface-bg, rgba(15, 23, 42, 1));
    stroke-width: 1.5;
}

.dv-sparkline--success .dv-sparkline-dot { fill: var(--accent-green, #4ade80); }
.dv-sparkline--warning .dv-sparkline-dot { fill: var(--accent-yellow, #fbbf24); }
.dv-sparkline--danger .dv-sparkline-dot { fill: var(--accent-red, #f87171); }

.dv-score-ring {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.dv-score-ring svg {
    transform: rotate(-90deg);
}

.dv-score-ring--sm { width: 64px; height: 64px; }
.dv-score-ring--md { width: 80px; height: 80px; }
.dv-score-ring--lg { width: 100px; height: 100px; }

.dv-ring-track {
    fill: none;
    stroke: var(--dark-surface-tint, rgba(255, 255, 255, 0.06));
    stroke-width: 6;
}

[data-theme="light"] .dv-ring-track {
    stroke: rgba(0, 0, 0, 0.08);
}

.dv-ring-fill {
    fill: none;
    stroke-width: 6;
    stroke-linecap: round;
    transition: stroke-dashoffset 1s ease;
}

.dv-ring-center {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.dv-ring-value {
    font-size: var(--section-title-size, 15px);
    font-weight: 700;
    color: var(--text-primary, #fff);
    line-height: 1;
}

.dv-ring-label {
    font-size: var(--label-size, 11px);
    color: var(--text-muted, rgba(255, 255, 255, 0.5));
    margin-top: 2px;
}

.dv-progress {
    width: 100%;
    border-radius: var(--border-radius-sm, 6px);
    overflow: hidden;
    position: relative;
}

.dv-progress-track {
    width: 100%;
    background: var(--dark-surface-tint, rgba(255, 255, 255, 0.06));
    border-radius: var(--border-radius-sm, 6px);
    overflow: hidden;
}

[data-theme="light"] .dv-progress-track {
    background: rgba(0, 0, 0, 0.06);
}

.dv-progress--thin .dv-progress-track { height: 4px; }
.dv-progress--standard .dv-progress-track { height: 8px; }
.dv-progress--thick .dv-progress-track { height: 12px; }

.dv-progress-fill {
    height: 100%;
    border-radius: var(--border-radius-sm, 6px);
    transition: width var(--transition-slow, 200ms ease);
    min-width: 0;
}

.dv-progress--purple .dv-progress-fill {
    background: linear-gradient(90deg, var(--accent-purple-light, #7c3aed), var(--accent-purple-muted, #a78bfa));
}

.dv-progress--green .dv-progress-fill {
    background: linear-gradient(90deg, var(--accent-green-dark, #22c55e), var(--accent-green, #4ade80));
}

.dv-progress--warning .dv-progress-fill {
    background: linear-gradient(90deg, var(--accent-yellow-dark, #eab308), var(--accent-yellow, #fbbf24));
}

.dv-progress--danger .dv-progress-fill {
    background: linear-gradient(90deg, #ef4444, var(--accent-red, #f87171));
}

.dv-progress-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 4px;
}

.dv-progress-label-text {
    font-size: var(--label-size, 11px);
    color: var(--text-muted, rgba(255, 255, 255, 0.5));
}

.dv-progress-label-value {
    font-size: var(--data-size, 13px);
    font-weight: 600;
    color: var(--text-primary, #fff);
}

.dv-grade {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 2px 10px;
    border-radius: var(--border-radius-sm, 6px);
    font-size: var(--label-size, 11px);
    font-weight: 600;
    line-height: 1.4;
    min-width: 28px;
    text-align: center;
}

.dv-grade-A {
    background: var(--green-bg-subtle, rgba(34, 197, 94, 0.15));
    color: #22c55e;
}

.dv-grade-B {
    background: var(--blue-bg-subtle, rgba(59, 130, 246, 0.15));
    color: #3b82f6;
}

.dv-grade-C {
    background: var(--yellow-bg-subtle, rgba(245, 158, 11, 0.15));
    color: #f59e0b;
}

.dv-grade-D {
    background: rgba(249, 115, 22, 0.15);
    color: #f97316;
}

.dv-grade-F {
    background: var(--red-bg-subtle, rgba(239, 68, 68, 0.15));
    color: #ef4444;
}

.dv-grade--lg {
    font-size: 22px;
    font-weight: 800;
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: 8px;
}

.dv-chart-panel {
    background: linear-gradient(135deg, rgba(30, 30, 45, 0.95) 0%, rgba(20, 20, 35, 0.98) 100%);
    border: 1px solid var(--purple-border-light, rgba(139, 92, 246, 0.3));
    border-radius: var(--border-radius-lg, 12px);
    backdrop-filter: var(--blur-md, blur(12px));
    overflow: hidden;
}

[data-theme="light"] .dv-chart-panel {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 250, 252, 0.98) 100%);
    border-color: rgba(0, 0, 0, 0.1);
}

.dv-chart-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px 10px;
    border-bottom: 1px solid var(--border-color, rgba(255, 255, 255, 0.08));
}

.dv-chart-panel-title {
    font-size: var(--data-size, 13px);
    font-weight: 700;
    color: var(--text-primary, #fff);
}

.dv-chart-panel-subtitle {
    font-size: var(--label-size, 11px);
    color: var(--text-muted, rgba(255, 255, 255, 0.5));
    margin-top: 2px;
}

.dv-chart-panel-body {
    padding: var(--panel-padding, 18px);
}

@keyframes dv-skeleton-pulse {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 0.15; }
}

.dv-skeleton {
    position: relative;
    overflow: hidden;
}

.dv-skeleton-bar {
    background: var(--dark-surface-tint, rgba(255, 255, 255, 0.06));
    border-radius: var(--border-radius-sm, 6px);
    animation: dv-skeleton-pulse 1.5s ease-in-out infinite;
}

[data-theme="light"] .dv-skeleton-bar {
    background: rgba(0, 0, 0, 0.06);
}

.dv-skeleton--chart {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    padding: 16px;
}

.dv-skeleton--chart .dv-skeleton-bar {
    flex: 1;
    min-height: 20px;
}

.dv-skeleton--chart .dv-skeleton-bar:nth-child(1) { height: 60%; }
.dv-skeleton--chart .dv-skeleton-bar:nth-child(2) { height: 80%; }
.dv-skeleton--chart .dv-skeleton-bar:nth-child(3) { height: 45%; }
.dv-skeleton--chart .dv-skeleton-bar:nth-child(4) { height: 90%; }
.dv-skeleton--chart .dv-skeleton-bar:nth-child(5) { height: 55%; }
.dv-skeleton--chart .dv-skeleton-bar:nth-child(6) { height: 70%; }

.dv-skeleton--line {
    padding: 16px;
}

.dv-skeleton--line .dv-skeleton-bar {
    height: 2px;
    width: 100%;
    margin-bottom: 0;
}

.dv-skeleton--line::after {
    content: '';
    display: block;
    width: 100%;
    height: 60%;
    background: linear-gradient(
        135deg,
        var(--dark-surface-tint, rgba(255, 255, 255, 0.06)) 0%,
        transparent 50%,
        var(--dark-surface-tint, rgba(255, 255, 255, 0.06)) 100%
    );
    border-radius: var(--border-radius-sm, 6px);
    animation: dv-skeleton-pulse 1.5s ease-in-out infinite;
}

.dv-skeleton--ring {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
}

.dv-skeleton--ring .dv-skeleton-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 6px solid var(--dark-surface-tint, rgba(255, 255, 255, 0.06));
    animation: dv-skeleton-pulse 1.5s ease-in-out infinite;
    flex-shrink: 0;
}

.dv-skeleton--ring .dv-skeleton-lines {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.dv-skeleton--ring .dv-skeleton-lines .dv-skeleton-bar:first-child {
    width: 40%;
    height: 10px;
}

.dv-skeleton--ring .dv-skeleton-lines .dv-skeleton-bar:last-child {
    width: 60%;
    height: 24px;
}

.dv-best-indicator {
    box-shadow: 0 0 0 2px rgba(34, 197, 94, 0.3), 0 0 12px rgba(34, 197, 94, 0.15);
    border-color: rgba(34, 197, 94, 0.4) !important;
}