/* Performance Blind Spot — bug explorer accordion */

.pb-viz {
    margin: var(--spacing-lg, 2rem) 0;
}

.pb-heading {
    font-size: var(--font-size-lg, 1.25rem);
    font-weight: 600;
    color: var(--color-text-primary, #ffffff);
    margin: 0 0 var(--spacing-xs, 0.5rem);
}

.pb-hint {
    font-size: var(--font-size-sm, 0.875rem);
    color: var(--color-text-secondary, rgba(255, 255, 255, 0.65));
    margin: 0 0 var(--spacing-sm, 1rem);
    line-height: 1.5;
}

/* Filter row */

.pb-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: var(--spacing-sm, 1rem);
}

.pb-filter-btn {
    padding: 0.3rem 0.7rem;
    border: 1px solid var(--color-border, rgba(255, 255, 255, 0.1));
    border-radius: 6px;
    background: transparent;
    font-size: var(--font-size-xs, 0.75rem);
    font-family: inherit;
    cursor: pointer;
    color: var(--color-text-secondary, rgba(255, 255, 255, 0.65));
    transition: all var(--transition-fast, 150ms ease);
}

.pb-filter-btn:hover {
    border-color: var(--color-border-hover, rgba(255, 255, 255, 0.2));
    color: var(--color-text-primary, #ffffff);
}

.pb-filter-active {
    border-color: var(--color-accent, #60a5fa);
    color: var(--color-accent, #60a5fa);
    background: rgba(96, 165, 250, 0.08);
}

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

/* Toggle row */

.pb-toggle-row {
    margin-bottom: var(--spacing-sm, 1rem);
}

.pb-toggle-btn {
    padding: 0.35rem 0.75rem;
    border: 1px solid var(--color-border, rgba(255, 255, 255, 0.1));
    border-radius: 6px;
    background: transparent;
    font-size: var(--font-size-xs, 0.75rem);
    font-family: inherit;
    cursor: pointer;
    color: var(--color-text-secondary, rgba(255, 255, 255, 0.65));
    transition: all var(--transition-fast, 150ms ease);
}

.pb-toggle-btn:hover {
    border-color: var(--color-border-hover, rgba(255, 255, 255, 0.2));
    color: var(--color-text-primary, #ffffff);
}

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

/* Cards */

.pb-cards {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs, 0.5rem);
}

.pb-card {
    border: 1px solid var(--color-border, rgba(255, 255, 255, 0.1));
    border-radius: var(--radius-sm, 8px);
    background: var(--color-bg-surface, #1a1a1a);
    overflow: hidden;
    transition: border-color var(--transition-fast, 150ms ease);
}

.pb-card:hover {
    border-color: var(--color-border-hover, rgba(255, 255, 255, 0.2));
}

.pb-card-hidden {
    display: none;
}

.pb-card-open {
    border-color: var(--color-accent, #60a5fa);
}

/* Card header */

.pb-card-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.75rem 1rem;
    border: none;
    background: transparent;
    cursor: pointer;
    text-align: left;
    color: var(--color-text-primary, #ffffff);
    font-family: inherit;
    font-size: inherit;
}

.pb-card-header-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 1;
    min-width: 0;
}

.pb-slowdown {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 3.2rem;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: var(--font-size-sm, 0.875rem);
    font-weight: 700;
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
    color: #fbbf24;
    background: rgba(251, 191, 36, 0.12);
    flex-shrink: 0;
}

.pb-card-title-group {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    min-width: 0;
}

.pb-card-name {
    font-weight: 600;
    font-size: var(--font-size-sm, 0.875rem);
    white-space: nowrap;
}

.pb-card-summary {
    font-size: var(--font-size-xs, 0.75rem);
    color: var(--color-text-secondary, rgba(255, 255, 255, 0.65));
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pb-card-category {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-tertiary, rgba(255, 255, 255, 0.4));
    white-space: nowrap;
    flex-shrink: 0;
}

.pb-chevron {
    font-size: 0.6rem;
    color: var(--color-text-tertiary, rgba(255, 255, 255, 0.4));
    flex-shrink: 0;
}

/* Card body */

.pb-card-body {
    padding: 0 1rem 1rem;
    border-top: 1px solid var(--color-border, rgba(255, 255, 255, 0.1));
}

.pb-explanation {
    margin-bottom: 1rem;
}

.pb-explanation h4 {
    font-size: var(--font-size-sm, 0.875rem);
    font-weight: 600;
    color: var(--color-text-primary, #ffffff);
    margin: 0.75rem 0 0.35rem;
}

.pb-explanation p {
    font-size: var(--font-size-sm, 0.875rem);
    color: var(--color-text-secondary, rgba(255, 255, 255, 0.65));
    line-height: 1.6;
    margin: 0;
}

/* Code comparison */

.pb-code-compare {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

@media (max-width: 640px) {
    .pb-code-compare {
        grid-template-columns: 1fr;
    }
}

.pb-code-panel {
    border-radius: 6px;
    overflow: hidden;
}

.pb-code-label {
    padding: 0.35rem 0.75rem;
    font-size: var(--font-size-xs, 0.75rem);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pb-code-before .pb-code-label {
    background: rgba(239, 68, 68, 0.1);
    color: #f87171;
}

.pb-code-after .pb-code-label {
    background: rgba(34, 197, 94, 0.1);
    color: #4ade80;
}

.pb-slow-tag {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.1rem 0.35rem;
    border-radius: 3px;
    background: rgba(239, 68, 68, 0.15);
    color: #f87171;
}

.pb-fast-tag {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.1rem 0.35rem;
    border-radius: 3px;
    background: rgba(34, 197, 94, 0.15);
    color: #4ade80;
}

.pb-code-panel pre {
    margin: 0;
    padding: 0.75rem;
    background: var(--color-bg-code, #0d0d0d);
    overflow-x: auto;
    font-size: 0.72rem;
    line-height: 1.5;
}

.pb-code-panel code {
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
    color: var(--color-text-secondary, rgba(255, 255, 255, 0.75));
}