body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(120deg, #000000, #32CD32);
    color: #333333;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.container {
    display: flex;
    flex-direction: column;
    background: linear-gradient(120deg, #000000, #32CD32);
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
    width: 350px;
    text-align: center;
    transition: background 1s ease;
}
.container:hover{
    background: linear-gradient(120deg,#000000, #32CD32);
}

h2 {
    color: #FFD700;
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
}

h3 {
    color: #32CD32;
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
}

form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.input {
    display: flex;
    flex-direction: column;
}

label {
    margin-bottom: 6px;
    color: #C1C1C1;
    font-weight: bold;
}

input,
select {
    background-color: #0d1013;
    color: #FFFFFF;
    border: 1px solid #7F8C8D;
    border-radius: 10px;
    padding: 14px;
    transition: border-color 0.3s ease, transform 0.3s ease;
}

select {
    width: 100%;
}

input:focus,
select:focus {
    border-color:#32CD32;
    outline: none;
    box-shadow: 0 0 10px rgb(38, 255, 0);
    transform: scale(1.05);
}

button {
    background:  #0d1013;
    color: #FFFFFF;
    font-weight: bold;
    border: none;
    padding: 14px;
    border-radius: 12px;
    cursor: pointer;
    transition: background 0.4s ease, transform 0.3s ease;
}

button:hover {
    background: linear-gradient(145deg, #010605, #32CD32);
    transform: scale(1.1);
}

.result {
    margin-top: 20px;
    font-size: 1.2rem;
    color: #E8E8E8;
}

.error {
    color: #E74C3C;
    font-weight: bold;
}

.currency-selector {
    display: flex;
    align-items: center;
    gap: 15px;
}

.currency-flag {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    box-shadow: 0 3px 6px rgba(0,0,0,0.3);
}