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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    border-radius: 15px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

header {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 40px 30px;
    text-align: center;
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
}

.subtitle {
    font-size: 1.2em;
    opacity: 0.9;
}

main {
    padding: 40px 30px;
}

.app-section {
    background: #f8f9fa;
    border-left: 4px solid #667eea;
    padding: 25px;
    margin-bottom: 30px;
    border-radius: 8px;
}

.app-section h2 {
    color: #1e3c72;
    margin-bottom: 10px;
}

.app-section p {
    margin-bottom: 15px;
    color: #555;
}

.links {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.links a {
    background: #667eea;
    color: white;
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    transition: background 0.3s;
}

.links a:hover {
    background: #764ba2;
}

.info-section {
    margin-bottom: 25px;
}

.info-section h3 {
    color: #1e3c72;
    margin-bottom: 10px;
}

.info-section p {
    color: #555;
}

.info-section a {
    color: #667eea;
    text-decoration: none;
}

.info-section a:hover {
    text-decoration: underline;
}

footer {
    background: #1e3c72;
    color: white;
    text-align: center;
    padding: 20px;
    font-size: 0.9em;
}

@media (max-width: 600px) {
    header h1 {
        font-size: 2em;
    }
    
    .links {
        flex-direction: column;
    }
    
    .links a {
        text-align: center;
    }
}