body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    transition: background-color 0.5s ease;
    text-align: center;
}

.container {
    background-color: rgba(255, 255, 255, 0.9);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    max-width: 80%;
}

h1 {
    color: #333;
    margin-bottom: 2rem;
}

.color-btn {
    background: linear-gradient(135deg, #6e8efb, #a777e3);
    color: white;
    border: none;
    padding: 15px 30px;
    font-size: 1.2rem;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.color-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 7px 20px rgba(0, 0, 0, 0.25);
}

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

.color-btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0));
    opacity: 0;
    transition: opacity 0.3s;
}

.color-btn:hover::after {
    opacity: 1;
}

.color-display {
    margin-top: 2rem;
    font-size: 1.5rem;
    font-weight: bold;
    padding: 10px;
    border-radius: 5px;
    background-color: rgba(0, 0, 0, 0.1);
    color: #000;
}

.instructions {
    margin-top: 2rem;
    font-style: italic;
    color: #666;
}