:root {
    --bg-main: #fff;
    --bg-light: #f8f9fa;
    --border: #a2a9b1;
    --text-main: #202122;
    --text-muted: #555;
    --font-main: Georgia, "Times New Roman", Times, serif;
    --max-width: 1100px;
    --link-color: #0645ad;
    --link-hover: #0b0080;
    --transition: 0.3s ease;
}

* {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    margin: 0;
    font-family: var(--font-main);
    line-height: 1.7;
    background: var(--bg-main);
    color: var(--text-main);
    overflow-wrap: break-word;
}

a {
    color: var(--link-color);
    text-decoration: none;
}

a:hover {
    color: var(--link-hover);
    text-decoration: underline;
}

header,
footer {
    background: var(--bg-light);
    padding: 1rem 2rem;
    text-align: center;
    border-bottom: 1px solid var(--border);
}

footer {
    border-top: 1px solid var(--border);
    border-bottom: none;
    margin-top: 2rem;
    font-size: 0.9rem;
}

header h1 {
    margin: 0.2rem 0;
    font-size: 2.2rem;
}

header p {
    margin: 0;
    color: var(--text-muted);
}

main {
    display: flex;
    gap: 2rem;
    max-width: var(--max-width);
    margin: 2rem auto;
    padding: 0 1rem;
    flex-wrap: wrap;
}

article {
    flex: 3;
    min-width: 280px;
}

article h2 {
    font-size: 1.4rem;
    margin-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
    padding-bottom: .4rem;
    cursor: pointer;
    transition: var(--transition);
    user-select: none;
}

article h2::after {
    content: '▼';
    font-size: .8rem;
    transition: transform var(--transition);
}

article h2.active::after {
    transform: rotate(-180deg);
}

section .content {
    display: none;
    padding-top: .6rem;
    animation: fadeIn .4s ease;
}

section.active .content {
    display: block;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* UPDATED: Wider Sidebar (380px) */
aside {
    flex: 0 0 380px;
    /* Fixed width */
    max-width: 380px;
    min-width: 300px;
    background: var(--bg-light);
    border: 1px solid var(--border);
    border-radius: 6px;
    overflow: hidden;
    font-size: .95rem;
}

aside img {
    width: 100%;
    display: block;
    border-bottom: 1px solid var(--border);
}

aside table {
    width: 100%;
    border-collapse: collapse;
}

aside th,
aside td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
    line-height: 1.6;
}

aside th {
    background: #f1f3f5;
    font-weight: 600;
    width: 40%;
    white-space: nowrap;
}

aside td,
aside td a {
    overflow-wrap: anywhere;
    word-break: break-word;
    white-space: normal;
}

/* Mobile View */
@media (max-width: 900px) {
    main {
        flex-direction: column;
    }

    aside {
        flex: 1 1 auto;
        max-width: 500px;
        width: 100%;
        min-width: auto;
        margin: 0 auto 1.5rem;
    }
}

@media (max-width: 600px) {
    header h1 {
        font-size: 1.8rem;
    }

    article h2 {
        font-size: 1.2rem;
    }
}