/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

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

/* Header */
header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 40px 30px;
    text-align: center;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    font-weight: 700;
}

.app-name {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 5px;
}

.updated {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Main content */
main {
    padding: 40px 30px;
}

section {
    margin-bottom: 40px;
}

section:last-child {
    margin-bottom: 0;
}

h2 {
    font-size: 1.8rem;
    color: #667eea;
    margin-bottom: 15px;
    font-weight: 600;
    border-bottom: 3px solid #667eea;
    padding-bottom: 10px;
}

h3 {
    font-size: 1.3rem;
    color: #764ba2;
    margin-top: 20px;
    margin-bottom: 10px;
    font-weight: 600;
}

p {
    margin-bottom: 15px;
    text-align: justify;
}

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

li {
    margin-bottom: 10px;
}

strong {
    color: #667eea;
    font-weight: 600;
}

a {
    color: #667eea;
    text-decoration: none;
    border-bottom: 1px solid #667eea;
    transition: all 0.3s ease;
}

a:hover {
    color: #764ba2;
    border-bottom-color: #764ba2;
}

/* Contact info */
.contact-info {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    border-left: 4px solid #667eea;
    margin-top: 15px;
}

.contact-info p {
    margin-bottom: 10px;
    text-align: left;
}

.contact-info p:last-child {
    margin-bottom: 0;
}

/* Footer */
footer {
    background: #f8f9fa;
    padding: 30px;
    text-align: center;
    color: #666;
    border-top: 1px solid #e0e0e0;
}

footer p {
    margin-bottom: 5px;
    text-align: center;
}

footer p:last-child {
    margin-bottom: 0;
}

/* Responsive design */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    .container {
        border-radius: 10px;
    }

    header {
        padding: 30px 20px;
    }

    header h1 {
        font-size: 2rem;
    }

    .app-name {
        font-size: 1.2rem;
    }

    main {
        padding: 30px 20px;
    }

    h2 {
        font-size: 1.5rem;
    }

    h3 {
        font-size: 1.2rem;
    }

    ul {
        margin-left: 15px;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.8rem;
    }

    .app-name {
        font-size: 1.1rem;
    }

    main {
        padding: 20px 15px;
    }

    h2 {
        font-size: 1.3rem;
    }

    h3 {
        font-size: 1.1rem;
    }

    p {
        text-align: left;
    }
}

/* Print styles */
@media print {
    body {
        background: white;
        padding: 0;
    }

    .container {
        box-shadow: none;
        border-radius: 0;
    }

    header {
        background: none;
        color: black;
    }

    a {
        color: black;
        border-bottom: none;
    }
}