/* Layout & Structure */
* { margin: 0; padding: 0; box-sizing: border-box; }

body { 
    text-align: center; 
    padding-bottom: 50px; 
}

.main-header { padding: 20px; }
.big-logo { width: 80%; max-width: 300px; }

/* Grid for 4 images */
.image-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    padding: 15px;
}

.image-grid img {
    width: 100%;
    border-radius: 8px;
    display: block;
}

/* Button Layout */
.action-area {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 20px;
    max-width: 400px;
    margin: 0 auto;
}

.btn {
    text-decoration: none;
    padding: 15px;
    border-radius: 30px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

footer { padding: 30px; font-size: 14px; }