.button-accordion {
    margin-top: 1rem;
    border-top: 1px solid rgba(204, 222, 236, 0.95);
    padding-top: 1rem;
}

.button-accordion__button {
    display: inline-flex;
    justify-content: space-between;
    align-items: center;
    min-height: 2.4rem;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--color-accent);
    font: inherit;
    font-weight: 700;
    text-align: left;
    cursor: pointer;
    transition: color 0.2s ease;
}

.button-accordion__button:hover {
    color: var(--color-text-primary);
}

.button-accordion__button:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 0.35rem;
    border-radius: 0.4rem;
}

.button-accordion__label {
    line-height: 1.3;
}

.button-accordion__chevron {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.6rem;
    height: 1.6rem;
    flex-shrink: 0;
    border-radius: 999px;
    background: rgba(25, 157, 206, 0.12);
    color: currentColor;
    transition:
        transform 0.28s ease,
        background-color 0.2s ease,
        color 0.2s ease;
}

.button-accordion__chevron svg {
    width: 0.95rem;
    height: 0.95rem;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.button-accordion__button[aria-expanded="true"] .button-accordion__chevron {
    transform: rotate(90deg);
    background: rgba(25, 157, 206, 0.18);
}

.button-accordion__panel {
    display: block;
    height: 0;
    overflow: hidden;
    opacity: 0;
    transition:
        height var(--button-accordion-duration, 320ms) cubic-bezier(0.22, 1, 0.36, 1),
        opacity 0.22s ease;
    will-change: height, opacity;
}

.button-accordion__panel[aria-hidden="false"] {
    opacity: 1;
}

.button-accordion__content {
    display: grid;
    gap: 1rem;
    padding-top: 1rem;
}

.button-accordion__section-title {
    margin: 0 0 0.55rem;
    color: var(--color-text-primary);
    font-size: 1rem;
    line-height: 1.35;
}

.button-accordion__text {
    margin: 0;
    color: var(--color-text-muted);
    line-height: 1.7;
}

.button-accordion__list {
    margin: 0;
    padding-left: 1.15rem;
    color: var(--color-text-muted);
}

.button-accordion__list li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.button-accordion__nested {
    list-style: none;
}

.button-accordion__nested > .button-accordion__list {
    margin-top: 0.5rem;
}

html.a11y .button-accordion__button,
html.a11y .button-accordion__chevron,
html.a11y .button-accordion__panel {
    transition: none;
    will-change: auto;
}

@media (prefers-reduced-motion: reduce) {
    .button-accordion__button,
    .button-accordion__chevron,
    .button-accordion__panel {
        transition: none;
        will-change: auto;
    }
}