:root {
    --bg-color: #f5f5f7;
    --card-bg: #ffffff;
    --text-main: #1d1d1f;
    --text-secondary: #555555;
    --accent: #0071e3;
    --border: #e5e5e7;
    --border-radius: 12px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    margin: 0;
    padding: 20px;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 760px;
    margin: 0 auto;
    background: var(--card-bg);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

h1 {
    font-size: 24px;
    margin: 0 0 10px;
    text-align: center;
}

.subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 30px;
}

h2 {
    font-size: 18px;
    margin-top: 25px;
    margin-bottom: 15px;
    border-bottom: 1px solid #eeeeee;
    padding-bottom: 8px;
}

p,
ul {
    color: var(--text-secondary);
    font-size: 15px;
}

p {
    margin-bottom: 15px;
}

ul {
    margin-bottom: 15px;
    padding-left: 20px;
}

li {
    margin-bottom: 8px;
}

.highlight-box {
    background: #f0f8ff;
    border-left: 4px solid var(--accent);
    padding: 15px;
    margin: 20px 0;
    border-radius: 0 8px 8px 0;
}

.highlight-box p {
    margin: 0;
    color: #333333;
    font-size: 14px;
}

.links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
}

.lang {
    display: block;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: #fafafa;
    color: var(--text-main);
}

.lang:hover {
    background: #f0f8ff;
    border-color: #cfe5ff;
    text-decoration: none;
}

.contact {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #eeeeee;
    text-align: center;
}

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

a:hover {
    text-decoration: underline;
}

@media (max-width: 600px) {
    body {
        padding: 15px;
    }

    .container {
        padding: 25px;
    }
}