/* Reset + Page Styling */
body {
    margin: 0;
    font-family: 'Times new roman', sans-serif;
    background: #f5f7fa;
}


/* Heading */
h3 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 30px;
    padding: 12px 24px;
    background: linear-gradient(135deg, #fc466b, #3f5efb);
    color: white;
    border-radius: 14px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.25);
    letter-spacing: 2px;
}

/* Button Group */
.flipper {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
}

/* Buttons base style */
button {
    border: none;
    border-radius: 12px;
    width: 140px;
    height: 50px;
    font-size: 16px;
    font-weight: bold;
    color: white;
    cursor: pointer;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    transition: all 0.3s ease;
}

button:hover {
    transform: translateY(-5px) scale(1.05);
    filter: brightness(1.1);
}

/* Individual button gradients */
#green {
    background: linear-gradient(45deg, #56ab2f, #a8e063);
}
#red {
    background: linear-gradient(45deg, #ff416c, #ff4b2b);
}
#blue {
    background: linear-gradient(45deg, #36d1dc, #5b86e5);
}
#random {
    background: linear-gradient(45deg, #f7971e, #ffd200);
    color: black;
}