body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    color: #ecf0f1;
    text-align: center;
}

.container {
    padding: 30px;
    background: rgba(15, 30, 60, 0.95);
    border: 1px solid #0f3b5f;
    border-radius: 12px;
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.6);
    max-width: 600px;
    width: 90%;
}

h1 {
    font-size: 2rem;
    margin-bottom: 15px;
    color: #ffffff;
    font-weight: bold;
}

p {
    font-size: 1.1rem;
    margin-bottom: 25px;
    color: #bdc3c7;
}

a.download-button {
    display: inline-block;
    text-decoration: none;
    color: #ffffff;
    background: linear-gradient(45deg, #2980b9, #1e90ff);
    padding: 12px 25px;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: bold;
    transition: background 0.3s ease, transform 0.2s ease;
}

a.download-button:hover {
    background: linear-gradient(45deg, #1e90ff, #2980b9);
    transform: scale(1.05);
}

.main-links {
    margin: 20px 0;
}

.main-links a {
    text-decoration: none;
    color: #2980b9;
    margin: 0 8px;
    font-size: 1rem;
    transition: color 0.3s ease;
}

.main-links a:hover {
    color: #1e90ff;
}

details {
    margin: 10px 0;
    text-align: left;
}

details summary {
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: bold;
    color: #ecf0f1;
}

details p, details ul {
    margin: 10px 0;
    font-size: 0.95rem;
    color: #bdc3c7;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
}

.modal:target {
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: #0f1e3c;
    padding: 20px;
    border: 1px solid #0a2b4f;
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    color: #ecf0f1;
}

.modal-content pre {
    background: #0a2b4f;
    padding: 15px;
    border-radius: 8px;
    color: #ecf0f1;
    font-size: 0.9rem;
    overflow-x: auto;
}

.close-button {
    color: #e74c3c;
    text-decoration: none;
    font-size: 1.5rem;
    position: absolute;
    top: 15px;
    right: 15px;
    font-weight: bold;
}

.close-button:hover {
    color: #c0392b;
}

.modal-content a.download-button {
    margin-left: 15px;
}