.collapse-item {
    border-color: var(--collapse-border-color);
    border-style: var(--collapse-border-style);
    border-width: var(--collapse-border-width);
    border-radius: var(--collapse-border-radius);
    background-color: var(--collapse-background-color);
    overflow: clip;
}

.collapse-btn {
    align-items: center;
    width: 100%;
    display: inline-flex;
    border: none;
    line-height: normal;
    border-bottom: var(--collapse-border-width) var(--collapse-border-style) var(--collapse-border-color);
    padding-inline: var(--collapse-button-padding-x);
    padding-block: var(--collapse-button-padding-y);
    background-color: var(--collapse-button-background-color);

    &[aria-expanded="false"] {
        border-bottom: none;
    }
}

.collapse-btn-sm {
    padding-inline: var(--collapse-button-padding-x-sm);
    padding-block: var(--collapse-button-padding-y-sm);
}

.collapse-btn-md {
    padding-inline: var(--collapse-button-padding-x-md);
    padding-block: var(--collapse-button-padding-y-md);
}

.collapse-btn-lg {
    padding-inline: var(--collapse-button-padding-x-lg);
    padding-block: var(--collapse-button-padding-y-lg);
}

.collapse-body {
    padding-inline: var(--collapse-body-padding-x);
    padding-block: var(--collapse-body-padding-y);
}

.collapse-indicator::after {
    content: var(--collapse-indicator-content);
    display: inline-block;
    transition: transform 0.2s ease;
}

.collapse-btn.is-open .collapse-indicator::after {
    content: var(--collapse-indicator-content);
    transform: rotate(135deg);
}