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

body {
    background: #1a1a2e;
    color: #c8c8c8;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 15px;
    line-height: 1.7;
}

.container {
    max-width: 740px;
    margin: 0 auto;
    padding: 40px 24px 60px;
    position: relative;
}

.lang-btn {
    position: fixed;
    top: 20px;
    right: 24px;
    background: transparent;
    color: #c8c8c8;
    border: 1px solid #555;
    padding: 6px 18px;
    border-radius: 4px;
    font-size: 13px;
    cursor: pointer;
    z-index: 10;
    transition: border-color 0.2s, color 0.2s;
}

.lang-btn:hover {
    border-color: #fff;
    color: #fff;
}

h1 {
    text-align: center;
    font-size: 28px;
    font-weight: 700;
    color: #e0e0e0;
    margin-bottom: 28px;
    letter-spacing: 2px;
}

h2 {
    font-size: 18px;
    font-weight: 700;
    color: #e0e0e0;
    margin-top: 32px;
    margin-bottom: 8px;
}

p {
    margin-bottom: 16px;
    text-align: justify;
}

.footer {
    margin-top: 48px;
    text-align: center;
    color: #666;
    font-size: 13px;
}

@media (max-width: 600px) {
    .container { padding: 24px 16px 40px; }
    h1 { font-size: 22px; }
    h2 { font-size: 16px; }
    body { font-size: 14px; }
}