/* EX-03 — Compatibility breakdown component styles (Sprint 6).
 *
 * Honors prefers-reduced-motion: reduce (LEG-10 lesson). Pure CSS animation;
 * the JS only toggles the [hidden] attribute and aria-expanded.
 */

compatibility-breakdown {
    display: block;
    font-family: inherit;
}

.cb-root {
    margin-top: 0.75rem;
    border-radius: 0.5rem;
}

.cb-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.85rem;
    background: rgba(255, 255, 255, 0.05);
    color: inherit;
    border: 1px solid rgba(212, 175, 55, 0.4);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    cursor: pointer;
    transition: background-color 200ms ease, border-color 200ms ease;
}

.cb-toggle:focus-visible {
    outline: 2px solid #d4af37;
    outline-offset: 2px;
}

.cb-toggle:hover {
    background: rgba(212, 175, 55, 0.15);
}

.cb-toggle-icon {
    font-weight: bold;
    width: 1ch;
    text-align: center;
}

.cb-panel {
    margin-top: 0.75rem;
    padding: 0.85rem;
    background: rgba(0, 0, 0, 0.25);
    border-radius: 0.5rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: opacity 250ms ease;
}

.cb-panel[hidden] {
    display: none;
}

.cb-status {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0.5rem;
}

.cb-factors {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.45rem;
}

.cb-factor {
    display: grid;
    grid-template-columns: 9rem 1fr 4rem;
    grid-template-rows: auto auto;
    align-items: center;
    column-gap: 0.5rem;
    font-size: 0.85rem;
}

.cb-factor-name {
    text-transform: capitalize;
    font-weight: 600;
}

.cb-factor-bar {
    display: block;
    height: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 999px;
    overflow: hidden;
}

.cb-factor-bar-fill {
    display: block;
    height: 100%;
    background: linear-gradient(90deg, #d4af37, #ec4899);
    transition: width 350ms ease;
}

.cb-factor-score {
    font-variant-numeric: tabular-nums;
    text-align: right;
    color: rgba(255, 255, 255, 0.85);
}

.cb-factor-explanation {
    grid-column: 1 / -1;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.6);
    padding-left: 0.1rem;
}

.cb-counterfactuals {
    margin-top: 0.85rem;
    padding-top: 0.6rem;
    border-top: 1px dashed rgba(255, 255, 255, 0.15);
}

.cb-cf-heading {
    font-size: 0.85rem;
    font-weight: 600;
    margin: 0 0 0.4rem 0;
}

.cb-cf-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.cb-cf-item {
    display: flex;
    justify-content: space-between;
    gap: 0.5rem;
    font-size: 0.8rem;
    padding: 0.35rem 0.5rem;
    background: rgba(212, 175, 55, 0.08);
    border-radius: 0.35rem;
}

.cb-cf-delta {
    color: #34d399;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

/* LEG-10: reduced-motion */
@media (prefers-reduced-motion: reduce) {
    .cb-toggle,
    .cb-panel,
    .cb-factor-bar-fill {
        transition-duration: 0s !important;
        animation-duration: 0s !important;
    }
}