/* Container */
.collapsible {
    border: 1px solid #ddd;
    margin-bottom: 10px;
    background: #fff;
}

/* Header button */
.collapsible-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    background: #f9f9f9;
    border: none;
    padding: 10px 15px;
    font-size: 1rem;
    text-align: left;
    cursor: pointer;
    color: #333;
}

/* Chevron */
.collapsible-header .chevron {
    margin-left: auto;
    transition: transform 0.2s ease;
}

/* Rotated when open */
.collapsible-header.open .chevron {
    transform: rotate(90deg);
}

/* Content */
.collapsible-body {
    display: none;
    padding: 10px 15px;
}

.collapsible-body.open {
    display: block;
}