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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 500px;
}

.card {
    background: white;
    border-radius: 20px;
    padding: 50px 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    text-align: center;
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.icon {
    margin-bottom: 30px;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

h1 {
    color: #333;
    font-size: 32px;
    margin-bottom: 15px;
    font-weight: 600;
}

.description {
    color: #666;
    font-size: 16px;
    margin-bottom: 40px;
    line-height: 1.6;
}

.download-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 18px 50px;
    font-size: 18px;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(102, 126, 234, 0.6);
}

.download-btn:active {
    transform: translateY(-1px);
}

.btn-icon {
    font-size: 22px;
}

.file-info {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 2px solid #f0f0f0;
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 15px;
}

.file-info p {
    color: #666;
    font-size: 14px;
}

.file-info strong {
    color: #333;
    display: block;
    margin-bottom: 5px;
}

footer {
    text-align: center;
    margin-top: 30px;
    color: white;
}

footer p {
    margin: 8px 0;
    font-size: 14px;
}

footer a {
    color: white;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

footer a:hover {
    text-decoration: underline;
    opacity: 0.9;
}

.contact {
    font-size: 13px !important;
    opacity: 0.9;
}

/* Responsive Design */
@media (max-width: 600px) {
    .card {
        padding: 40px 30px;
    }

    h1 {
        font-size: 26px;
    }

    .download-btn {
        padding: 16px 40px;
        font-size: 16px;
    }

    .file-info {
        flex-direction: column;
        gap: 20px;
    }
}