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

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #e2e8f0, #cbd5e1);
    text-align: center;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

#box {
    width: 400px;
    min-height: 300px;
    background-color: white;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0px 10px 25px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

#box:hover {
    box-shadow: 0px 20px 40px rgba(0, 0, 0, 0.2);
    transform: translateY(-10px);
}

#header {
    color: rgb(81, 35, 142);
    font-size: 38px;
    margin-bottom: 20px;
}

#number {
    font-size: 70px;
    margin-bottom: 30px;
}

.buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.button {
    padding: 15px 30px;
    font-size: 15px;
    border: 2px solid gray;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.button:hover {
    transform: scale(1.05);
    opacity: 0.9;
}

#decrement {
    background-color: rgb(197, 29, 29);
    color: white;
}

#reset {
    background-color: rgb(184, 184, 184);
    color: black;
}

#increment {
    background-color: rgb(33, 132, 33);
    color: white;
}