body {
    min-height: 100vh;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #f5f5f5;
    font-family: sans-serif;
}

.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: white;
    padding: 30px 20px;
    border-radius: 16px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    text-align: center;
    width: 90%;
    max-width: 360px;
    box-sizing: border-box;
}

h2 {
    font-size: 24px;
    margin-top: 0;
    margin-bottom: 10px;
    color: #333;
}

.box-angka {
    width: 100%;
    max-width: 220px;
    height: 80px;
    margin: 20px auto;
    background-color: #f0f0f0;
    border: 3px solid #333;
    border-radius: 10px;
    font-size: 36px;
    text-align: center;
    font-weight: bold;
    line-height: 80px;
    color: #333;
}

.btn-wrapper {
    display: flex;
    flex-direction: row;
    gap: 10px;
    width: 100%;
    max-width: 220px;
}

.btn1, .btn2 {
    flex: 1;
    text-align: center;
    color: beige;
    font-size: 16px;
    padding: 12px;
    border: none;
    cursor: pointer;
    transition: transform 0.1s ease;
    font-weight: bold;
}

.btn1 {
    background-color: darkolivegreen;
    border-radius: 8px;
}

.btn2 {
    background-color: rgb(107, 47, 47);
    border-radius: 8px;
}