/**
 * Token Budget Visualizer
 * Uses site design tokens (dark theme, white opacity layers)
 */

.tb-viz {
    max-width: 640px;
    margin: var(--spacing-lg, 2rem) auto;
    padding: var(--spacing-md, 1.5rem) var(--spacing-lg, 2rem);
    background: var(--color-bg-elevated, #111111);
    border-radius: var(--radius-md, 16px);
    border: 1px solid var(--color-border, rgba(255, 255, 255, 0.1));
}

.tb-heading {
    font-size: var(--font-size-lg, 1.25rem);
    font-weight: 700;
    color: var(--color-text-primary, #ffffff);
    margin: 0 0 var(--spacing-xs, 0.5rem);
}

.tb-hint {
    font-size: var(--font-size-xs, 0.75rem);
    color: var(--color-text-tertiary, rgba(255, 255, 255, 0.55));
    margin: 0 0 var(--spacing-md, 1.5rem);
    line-height: 1.5;
}

/* --- Stacked Bar --- */

.tb-bar-section {
    margin-bottom: var(--spacing-md, 1.5rem);
}

.tb-bar {
    display: flex;
    height: 36px;
    border-radius: var(--radius-sm, 8px);
    overflow: hidden;
    background: rgba(255, 255, 255, 0.04);
}

.tb-segment {
    display: flex;
    align-items: center;
    justify-content: center;
    transition: width 300ms ease;
    min-width: 0;
    overflow: hidden;
}

.tb-segment-label {
    font-size: 0.65rem;
    font-weight: 700;
    color: rgba(0, 0, 0, 0.7);
    font-family: var(--font-mono, 'SF Mono', Monaco, 'Cascadia Code', monospace);
    white-space: nowrap;
}

.tb-reasoning {
    background: linear-gradient(90deg, #22c55e 0%, #4ade80 100%);
}

/* --- Legend --- */

.tb-legend {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs, 0.5rem);
    margin-top: var(--spacing-xs, 0.5rem);
}

.tb-legend-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.65rem;
    color: var(--color-text-tertiary, rgba(255, 255, 255, 0.55));
}

.tb-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* --- Sliders --- */

.tb-sliders {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm, 1rem);
    margin-bottom: var(--spacing-md, 1.5rem);
}

.tb-slider-group {
    padding: 0.5rem 0;
}

.tb-slider-label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.25rem;
}

.tb-slider-label {
    font-size: var(--font-size-sm, 0.875rem);
    font-weight: 600;
    color: var(--color-text-secondary, rgba(255, 255, 255, 0.75));
}

.tb-slider-value {
    font-size: var(--font-size-sm, 0.875rem);
    font-weight: 800;
    font-family: var(--font-mono, 'SF Mono', Monaco, 'Cascadia Code', monospace);
}

.tb-slider {
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    height: 4px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}

.tb-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--thumb-color, #60a5fa);
    border: 2px solid #111111;
    cursor: pointer;
}

.tb-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--thumb-color, #60a5fa);
    border: 2px solid #111111;
    cursor: pointer;
}

.tb-slider:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.6);
    outline-offset: 4px;
    border-radius: 2px;
}

.tb-slider-desc {
    font-size: 0.65rem;
    color: var(--color-text-tertiary, rgba(255, 255, 255, 0.55));
    margin-top: 0.25rem;
}

/* --- Reasoning Callout --- */

.tb-callout {
    text-align: center;
    padding: var(--spacing-sm, 1rem);
    background: rgba(34, 197, 94, 0.08);
    border-radius: var(--radius-sm, 8px);
    border: 1px solid rgba(34, 197, 94, 0.2);
    margin-bottom: var(--spacing-sm, 1rem);
}

.tb-callout-warning {
    background: rgba(251, 146, 60, 0.08);
    border-color: rgba(251, 146, 60, 0.3);
}

.tb-callout-danger {
    background: rgba(239, 68, 68, 0.08);
    border-color: rgba(239, 68, 68, 0.3);
}

.tb-callout-number {
    font-size: 2rem;
    font-weight: 800;
    color: #4ade80;
    font-family: var(--font-mono, 'SF Mono', Monaco, 'Cascadia Code', monospace);
}

.tb-callout-warning .tb-callout-number {
    color: #fb923c;
}

.tb-callout-danger .tb-callout-number {
    color: #ef4444;
}

.tb-callout-label {
    font-size: var(--font-size-xs, 0.75rem);
    color: var(--color-text-tertiary, rgba(255, 255, 255, 0.55));
    margin-top: 0.25rem;
}

.tb-callout-warn {
    font-size: var(--font-size-xs, 0.75rem);
    color: var(--color-text-secondary, rgba(255, 255, 255, 0.75));
    margin-top: 0.5rem;
    font-style: italic;
}

/* --- Presets --- */

.tb-presets {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-sm, 1rem);
}

.tb-presets-label {
    font-size: var(--font-size-xs, 0.75rem);
    font-weight: 700;
    color: var(--color-text-tertiary, rgba(255, 255, 255, 0.55));
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.tb-preset-btn {
    font-size: var(--font-size-xs, 0.75rem);
    font-weight: 600;
    color: var(--color-text-secondary, rgba(255, 255, 255, 0.75));
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--color-border, rgba(255, 255, 255, 0.1));
    border-radius: 9999px;
    padding: 0.25rem 0.75rem;
    cursor: pointer;
    transition: background var(--transition-fast, 150ms ease);
}

.tb-preset-btn:hover {
    background: rgba(255, 255, 255, 0.12);
}

.tb-preset-btn:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.6);
    outline-offset: 2px;
}

/* --- Source Note --- */

.tb-source {
    font-size: 0.65rem;
    color: var(--color-text-tertiary, rgba(255, 255, 255, 0.55));
    margin: 0;
    line-height: 1.5;
}

/* --- Responsive --- */

@media (max-width: 480px) {
    .tb-viz {
        padding: var(--spacing-sm, 1rem);
    }

    .tb-callout-number {
        font-size: 1.5rem;
    }

    .tb-presets {
        flex-direction: column;
        align-items: flex-start;
    }
}