* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: #fff;
    color: #000;
    font-family: Arial, sans-serif;
    padding: 60px 20px;
}

.container {
    max-width: 700px;
    margin: auto;
}

h1 {
    font-size: 24px;
    letter-spacing: 5px;
    font-weight: 500;
}

.dropdown {
    border-top: 1px solid #333;
}

details {
    border-bottom: 1px solid #333;
}

summary {
    list-style: none;
    cursor: pointer;
    padding: 20px 4px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    letter-spacing: 1px;
    transition: color 0.2s ease;
}

summary::-webkit-details-marker {
    display: none;
}

summary:hover {
    color: #aaa;
}

.icon::before {
    content: "+";
    font-size: 18px;
    color: #888;
}

details[open] > summary .icon::before {
    content: "−";
}

.content {
    padding: 0 0 12px 20px;
}

.content details {
    border-bottom: 1px solid #222;
}

.content summary {
    font-size: 12px;
    padding: 15px 4px;
    color: #bbb;
}

.inner {
    padding: 4px 20px 18px;
    color: #888;
    font-size: 13px;
    line-height: 1.8;
}

/* Subtle hover */

.content summary:hover {
    color: white;
}

.inner p {
    margin-bottom: 8px;
}


.content,
.inner {
    animation: reveal 0.22s ease;
}

details.closing > .content,
details.closing > .inner {
    animation: hide 0.22s ease forwards;
}

@keyframes reveal {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes hide {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-5px);
    }
}