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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
    background-color: #e0e0e0;
    color: #222;
    line-height: 1.6;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

header {
    text-align: center;
    padding: 40px 20px;
    margin-bottom: 50px;
}

h1 {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    line-height: 1.2;
}

.title-main {
    display: block;
    font-size: 1em;
}

.title-multilingual {
    display: block;
    font-size: 0.55em;
    letter-spacing: 0.12em;
    line-height: 1.15;
    margin: 0.35em 0;
    white-space: nowrap;
}

section {
    margin-bottom: 50px;
    padding: 30px;
    box-shadow: 
        8px 8px 16px rgba(163, 163, 163, 0.4),
        -8px -8px 16px rgba(255, 255, 255, 0.4);
    border-radius: 20px;
}

h2 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 20px;
    padding-bottom: 10px;
}

p {
    margin-bottom: 15px;
    text-align: left;
    font-weight: 500;
}

a,
a:visited {
    color: #333;
    text-decoration: underline;
    text-underline-offset: 0.14em;
    text-decoration-thickness: 0.08em;
    transition: color 0.2s ease;
}

a:hover {
    color: #111;
}

a:focus-visible {
    outline: 2px solid #111;
    outline-offset: 2px;
    border-radius: 2px;
}

.obfuscated-email {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
    font-size: 0.95em;
    color: #3f3f3f;
    letter-spacing: 0.01em;
}

pre {
    padding: 20px;
    margin: 20px 0;
    font-family: inherit;
    font-size: 1em;
    line-height: inherit;
    font-weight: 500;
    white-space: pre-wrap;
    word-wrap: break-word;
    overflow-wrap: break-word;
    box-shadow: 
        inset 4px 4px 8px rgba(163, 163, 163, 0.3),
        inset -4px -4px 8px rgba(255, 255, 255, 0.3);
    border-radius: 15px;
}

footer {
    text-align: center;
    padding: 30px 20px;
    margin-top: 50px;
    font-size: 0.9em;
}

footer p {
    text-align: center;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    body {
        padding: 18px;
        font-size: 18px;
        line-height: 1.7;
    }
    
    header {
        padding: 30px 10px;
        margin-bottom: 30px;
    }
    
    h1 {
        font-size: 1.6rem;
    }
    
    section {
        padding: 22px;
        margin: 0 8px 30px 8px;
        box-shadow: 
            6px 6px 12px rgba(163, 163, 163, 0.4),
            -6px -6px 12px rgba(255, 255, 255, 0.4);
    }
    
    h2 {
        font-size: 1.25em;
        margin-bottom: 14px;
    }
    
    pre {
        padding: 15px;
        font-size: 1em;
        overflow-x: auto;
    }
    
    footer {
        padding: 20px 10px;
        font-size: 0.8em;
    }
}

@media (max-width: 480px) {
    body {
        padding: 16px;
        font-size: 19px;
        line-height: 1.75;
    }
    
    h1 {
        font-size: 1.4rem;
        letter-spacing: 0.08em;
    }

    .title-multilingual {
        font-size: 0.5em;
        letter-spacing: 0.1em;
    }
    
    section {
        padding: 18px;
        margin: 0 6px 28px 6px;
        box-shadow: 
            4px 4px 8px rgba(163, 163, 163, 0.4),
            -4px -4px 8px rgba(255, 255, 255, 0.4);
    }
    
    h2 {
        font-size: 1.2em;
        margin-bottom: 12px;
    }
    
    p {
        text-align: left;
    }
}