body { 
    font-family: Arial, sans-serif; 
    max-width: 750px; 
    margin: 20px auto; 
    padding: 10px; 
    background-color: #f4f6f9; 
}
.card { 
    background: white; 
    padding: 20px; 
    border-radius: 10px; 
    box-shadow: 0 4px 6px rgba(0,0,0,0.1); 
    margin-bottom: 20px; 
}
.grid-3 { 
    display: grid; 
    grid-template-columns: 1fr 1fr 1fr; 
    gap: 10px; 
}
.amplop-grid { 
    display: grid; 
    grid-template-columns: 1fr 1fr; 
    gap: 15px; 
}
.amplop { 
    background: #e3faf2; 
    border: 2px solid #20c997; 
    padding: 15px; 
    border-radius: 8px; 
}
.amplop h3 { 
    margin: 0 0 10px 0; 
    color: #0ca678; 
}
.saldo { 
    font-size: 1.1rem; 
    font-weight: bold; 
    margin-bottom: 5px; 
}
.kantong-utama { 
    background: #e8f4fd; 
    border: 2px solid #339af0; 
    color: #1c7ed6; 
    text-align: center; 
}
input, button, select { 
    width: 100%; 
    padding: 8px; 
    margin: 5px 0; 
    box-sizing: border-box; 
    border: 1px solid #ced4da; 
    border-radius: 4px; 
}
button { 
    background-color: #339af0; 
    color: white; 
    border: none; 
    cursor: pointer; 
    font-weight: bold; 
}
button:hover { 
    background-color: #228be6; 
}
.btn-gajian { 
    background-color: #12b886; 
}
.btn-gajian:hover { 
    background-color: #0ca678; 
}
.advise-box { 
    background: #fff9db; 
    border-left: 5px solid #fcc419; 
    padding: 15px; 
    border-radius: 4px; 
    margin-top: 15px; 
    display: none; 
}
.btn-wa { 
    background-color: #25d366; 
    margin-top: 10px; 
    display: none; 
}
.btn-wa:hover { 
    background-color: #128c7e; 
}