* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

body {
    background-color: #f2f2f7;
    color: #1d1d1f;
    line-height: 1.5;
}

.content {
    min-height: 100vh;
    padding: 20px;
    max-width: 900px;
    margin: 0 auto;
}

.container {
    background-color: #ffffff;
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    margin-top: 20px;
    border: 1px solid #e5e5ea;
}

/* Скрытие страниц через CSS */
.container:not(:target) {
    display: none;
}

/* Главная страница показывается по умолчанию */
.container:first-child {
    display: block;
}

/* При переходе по якорю показываем нужную страницу */
.container:target {
    display: block;
}

/* Скрываем главную если есть активная страница */
.container:target ~ .container:first-child {
    display: none;
}

h1 {
    font-size: 40px;
    font-weight: 800;
    margin-bottom: 16px;
    color: #1d1d1f;
    line-height: 1.2;
}

h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 24px;
    color: #1d1d1f;
    border-bottom: 2px solid #f2f2f7;
    padding-bottom: 12px;
}

h3 {
    font-size: 20px;
    font-weight: 600;
    margin: 24px 0 16px;
    color: #1d1d1f;
}

p {
    font-size: 17px;
    margin-bottom: 20px;
    color: #424245;
}

ul {
    margin-left: 24px;
    margin-bottom: 24px;
}

li {
    font-size: 17px;
    margin-bottom: 12px;
    color: #424245;
    line-height: 1.5;
}

.section-list {
    background-color: #f8f8fa;
    border-radius: 12px;
    padding: 24px;
    margin: 28px 0;
    border-left: 4px solid #30b0c7;
}

.section-list li {
    font-size: 18px;
    margin-bottom: 16px;
}

.emoji {
    font-size: 20px;
    margin-right: 8px;
}

.intro-text {
    font-size: 18px;
    background-color: #f2f8ff;
    padding: 20px;
    border-radius: 12px;
    border-left: 4px solid #007aff;
    margin-bottom: 32px;
}

.fact-item, .quote-item {
    background-color: #fbfbfd;
    padding: 16px;
    border-radius: 10px;
    margin-bottom: 16px;
    border: 1px solid #e5e5ea;
    counter-increment: item-counter;
    position: relative;
    padding-left: 48px;
}

.fact-item:before {
    content: counter(item-counter) ".";
    position: absolute;
    left: 16px;
    top: 16px;
    font-weight: 700;
    color: #30b0c7;
    font-size: 18px;
}

.fact-list {
    counter-reset: item-counter;
}

.meme-item {
    background-color: #f8f8fa;
    padding: 16px;
    border-radius: 10px;
    margin-bottom: 12px;
    font-weight: 500;
    border-left: 3px solid #ff9500;
}

.meme-item:nth-child(2) {
    border-left-color: #ff3b30;
}

.meme-item:nth-child(3) {
    border-left-color: #34c759;
}

.meme-item:nth-child(4) {
    border-left-color: #af52de;
}

.quote-item {
    border-left: 4px solid #5ac8fa;
    font-style: italic;
    padding-left: 20px;
}

.quote-item:before {
    content: "“";
    position: absolute;
    left: 12px;
    top: 12px;
    font-size: 24px;
    color: #5ac8fa;
    font-weight: bold;
}

.page-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 32px;
    padding-top: 20px;
    border-top: 1px solid #e5e5ea;
}

.nav-btn {
    background-color: #007aff;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
    text-decoration: none;
    display: inline-block;
}

.nav-btn:hover {
    background-color: #0056cc;
}

.nav-btn.disabled {
    background-color: #c7c7cc;
    cursor: not-allowed;
    pointer-events: none;
}

hr {
    border: none;
    height: 1px;
    background-color: #e5e5ea;
    margin: 24px 0;
}

.note {
    font-size: 15px;
    color: #8e8e93;
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px dashed #e5e5ea;
}

.highlight {
    color: #ff3b30;
    font-weight: 600;
}

.uppercase {
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.meme-vizg {
    font-size: 15px;
    color: #8e8e93;
    font-style: italic;
    margin-top: 8px;
}

/* Стили для картинок */
.cat-image {
    width: 200px;
    height: 200px;
    border-radius: 12px;
    object-fit: cover;
    margin: 0 auto 24px;
    display: block;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border: 3px solid #fff;
}

.header-with-image {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.header-text {
    flex: 1;
    min-width: 300px;
}

.image-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin: 24px 0;
}

.meme-image {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
    border: 2px solid #e5e5ea;
}

.fact-image {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 20px;
    display: block;
    border: 4px solid #30b0c7;
}

.quote-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    float: right;
    margin: 0 0 20px 20px;
    shape-outside: circle(50%);
    border: 4px solid #5ac8fa;
}

@media (max-width: 768px) {
    .content {
        padding: 12px;
    }
    
    .container {
        padding: 20px;
    }
    
    h1 {
        font-size: 32px;
    }
    
    h2 {
        font-size: 24px;
    }
    
    .header-with-image {
        flex-direction: column;
        text-align: center;
    }
    
    .image-grid {
        grid-template-columns: 1fr;
    }
    
    .quote-image {
        float: none;
        margin: 0 auto 20px;
        display: block;
    }
}