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

body {
    background: #e8e4dc;
    color: #1a1a1a;
    font-family: "Times New Roman", Times, serif;
    line-height: 1.5;
    padding: 24px 16px 40px;
}

.toc-page {
    max-width: 780px;
    margin: 0 auto;
    background: #fffef9;
    border: 1px solid #c9c4b8;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
    padding: 48px 56px 56px;
}

.toc-header {
    text-align: center;
    margin-bottom: 36px;
    padding-bottom: 24px;
    border-bottom: 2px solid #1a1a1a;
}

.toc-title {
    font-size: 28px;
    font-weight: bold;
    letter-spacing: 0.35em;
    text-indent: 0.35em;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.toc-subtitle {
    font-size: 15px;
    font-style: italic;
    color: #333;
}

.toc-chapter {
    margin-bottom: 22px;
}

.chapter-heading {
    font-size: 15px;
    font-weight: bold;
    text-transform: uppercase;
    margin-bottom: 8px;
    color: #1a1a1a;
}

.toc-list {
    list-style: none;
    padding-left: 16px;
}

.toc-item {
    margin-bottom: 4px;
}

.toc-link {
    display: flex;
    align-items: baseline;
    gap: 4px;
    text-decoration: none;
    color: #1a1a1a;
    font-size: 15px;
    padding: 3px 0;
    transition: color 0.2s;
}

.toc-link:hover {
    color: #0d47a1;
}

.toc-link:hover .toc-dots {
    border-bottom-color: #0d47a1;
}

.toc-lesson {
    flex-shrink: 0;
}

.toc-dots {
    flex-grow: 1;
    border-bottom: 1px dotted #666;
    margin: 0 6px;
    min-width: 24px;
    position: relative;
    top: -3px;
}

.toc-page-num {
    flex-shrink: 0;
    white-space: nowrap;
    font-size: 15px;
}

.toc-footer {
    margin-top: 40px;
    padding-top: 16px;
    border-top: 1px solid #c9c4b8;
    text-align: center;
    font-size: 13px;
    color: #555;
    font-style: italic;
}

@media (max-width: 640px) {
    body {
        padding: 12px 8px 24px;
    }

    .toc-page {
        padding: 28px 20px 32px;
    }

    .toc-title {
        font-size: 22px;
        letter-spacing: 0.2em;
        text-indent: 0.2em;
    }

    .toc-list {
        padding-left: 0;
    }

    .toc-link {
        font-size: 14px;
        flex-wrap: wrap;
    }

    .toc-dots {
        display: none;
    }

    .toc-page-num {
        width: 100%;
        text-align: right;
        padding-left: 16px;
        font-size: 13px;
    }
}