.ai-usage-panel {
    --usage-background: #ffffff;
    --usage-surface: #fafafa;
    --usage-border: #000000;
    --usage-text: #000000;
    --usage-muted: #5f6773;
    position: relative;
    isolation: isolate;
    overflow: hidden;
    border: 1px solid var(--usage-border);
    background: var(--usage-background);
    color: var(--usage-text);
    padding: 1.5rem;
}

.dark .ai-usage-panel {
    --usage-background: #161b22;
    --usage-surface: #0d1117;
    --usage-border: #30363d;
    --usage-text: #f0f6fc;
    --usage-muted: #8b949e;
}

.ai-usage-panel::before {
    position: absolute;
    z-index: -1;
    inset: 0;
    background-image:
        linear-gradient(to right, rgb(48 54 61 / 14%) 1px, transparent 1px),
        linear-gradient(to bottom, rgb(48 54 61 / 14%) 1px, transparent 1px);
    background-size: 24px 24px;
    content: "";
    pointer-events: none;
}

.ai-usage-header,
.ai-usage-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.ai-usage-title {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    color: var(--usage-text);
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.ai-usage-title::before {
    width: 0.5rem;
    height: 0.5rem;
    flex: 0 0 auto;
    border-radius: 999px;
    background: #00ff41;
    content: "";
}

.ai-usage-disclosure {
    color: var(--usage-muted);
    font-size: 0.625rem;
    letter-spacing: 0.12em;
    text-align: right;
}

.ai-usage-metrics {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
    margin: 1.25rem 0;
    border: 1px solid var(--usage-border);
    background: var(--usage-border);
}

.ai-usage-metric {
    min-width: 0;
    background: var(--usage-surface);
    padding: 1rem;
}

.ai-usage-metric dt {
    margin-bottom: 0.5rem;
    color: var(--usage-muted);
    font-size: 0.625rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.ai-usage-metric dd {
    overflow: hidden;
    margin: 0;
    color: var(--usage-text);
    font-size: clamp(1.25rem, 4vw, 1.75rem);
    font-variant-numeric: tabular-nums;
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ai-usage-metric--primary dd {
    color: #00c934;
}

.dark .ai-usage-metric--primary dd {
    color: #00ff41;
}

.ai-usage-chart {
    margin: 0;
}

.ai-usage-chart-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.625rem;
    color: var(--usage-muted);
    font-size: 0.625rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.ai-usage-bars {
    display: grid;
    height: 4rem;
    grid-template-columns: repeat(30, minmax(2px, 1fr));
    align-items: end;
    gap: clamp(2px, 0.5vw, 6px);
}

.ai-usage-bar {
    min-height: 2px;
    background: #00c934;
    opacity: 0.16;
}

.dark .ai-usage-bar {
    background: #00ff41;
}

.ai-usage-bar--1 {
    height: 15%;
    opacity: 0.48;
}

.ai-usage-bar--2 {
    height: 30%;
    opacity: 0.61;
}

.ai-usage-bar--3 {
    height: 50%;
    opacity: 0.74;
}

.ai-usage-bar--4 {
    height: 72%;
    opacity: 0.87;
}

.ai-usage-bar--5 {
    height: 100%;
    opacity: 1;
}

.ai-usage-footer {
    margin-top: 0.875rem;
    color: var(--usage-muted);
    font-size: 0.625rem;
    letter-spacing: 0.04em;
}

.ai-usage-cost-note {
    margin-top: 0.75rem;
    color: var(--usage-muted);
    font-family: "Space Grotesk", sans-serif;
    font-size: 0.75rem;
    line-height: 1.5;
}

@media (max-width: 639px) {
    .ai-usage-panel {
        padding: 1rem;
    }

    .ai-usage-header,
    .ai-usage-footer {
        align-items: flex-start;
        flex-direction: column;
        gap: 0.5rem;
    }

    .ai-usage-disclosure {
        text-align: left;
    }

    .ai-usage-metrics {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .ai-usage-metric--primary {
        grid-column: 1 / -1;
        grid-row: 1;
    }

    .ai-usage-metric dd {
        font-size: 1.25rem;
    }
}

@media (prefers-reduced-transparency: reduce) {
    .ai-usage-panel::before {
        display: none;
    }
}