/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #ffffff;
    background-color: #000000;
    min-height: 100vh;
}

/* Container */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 0;
    padding: 2rem 0 1rem 0;
}

.logo {
    width: 240px;
    height: 240px;
    margin-bottom: -0.5rem;
}

header h1 {
    font-size: 3rem;
    font-weight: bold;
    color: #ffffff;
    margin-bottom: 0.1rem;
    letter-spacing: -0.02em;
}

.subtitle {
    font-size: 1.2rem;
    color: #cccccc;
    font-weight: 300;
    font-style: italic;
    opacity: 0.8;
    margin-top: -0.25rem;
    margin-bottom: 2rem;
}

/* Main Content */
main {
    flex: 1;
}

.content {
    background-color: #111111;
    padding: 2.5rem;
    border-radius: 8px;
    border: 1px solid #333333;
    margin-bottom: 2rem;
}

.content h2 {
    font-size: 2rem;
    color: #ffffff;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.content h3 {
    font-size: 1.5rem;
    color: #ffffff;
    margin: 2rem 0 1rem 0;
    font-weight: 500;
}

.content p {
    font-size: 1.1rem;
    color: #cccccc;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.content ul {
    margin: 1rem 0 1.5rem 2rem;
}

.content li {
    color: #cccccc;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.content li::marker {
    color: #666666;
}

/* Twitter Section */
.twitter-section {
    position: fixed;
    top: 2rem;
    right: 2rem;
    z-index: 1000;
}

.twitter-btn {
    display: inline-block;
    background: #000000;
    color: white;
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem 0;
    border-top: 1px solid #333333;
    margin-top: 2rem;
}

footer p {
    color: #888888;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    header h1 {
        font-size: 2.5rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .content {
        padding: 2rem;
    }
    
    .content h2 {
        font-size: 1.75rem;
    }
    
    .content h3 {
        font-size: 1.25rem;
    }
    
    .content p,
    .content li {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0.5rem;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .content {
        padding: 1.5rem;
    }
    
    .content h2 {
        font-size: 1.5rem;
    }
}