/* Global styles */
* {
    margin: 0;
    padding: 0;
    font-family: 'Poppins, sans-serif';
    box-sizing: border-box;
}

body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: #4bc0c8;
}

.wrapper {
    width: 370px;
    padding: 30px;
    border-radius: 15px;
    background: white;
    box-shadow: 0px 4px 20px rgba(0, 0, 0, 0.2);
    animation: fadeIn 1s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

.wrapper header {
    font-size: 28px;
    font-weight: 600;
    text-align: center;
    color: #675afe;
    margin-bottom: 20px;
}

.wrapper form {
    margin: 20px 0;
}

form :where(input, select, button) {
    width: 100%;
    outline: none;
    border: none;
    border-radius: 5px;
    transition: all 0.3s ease;
}

form p {
    font-size: 18px;
    margin-bottom: 5px;
    color: #333;
}

form input {
    height: 50px;
    font-size: 17px;
    padding: 0 15px;
    border: 1px solid #36a2eb;
    transition: border 0.3s ease;
}

form input:focus {
    padding: 0 14px;
    border: 2px solid #675afe;
    box-shadow: 0px 4px 10px rgba(103, 90, 254, 0.2);
}

form .drop-list {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 20px;
}

.drop-list .select-box {
    display: flex;
    height: 45px;
    width: 130px;
    align-items: center;
    justify-content: center;
    border: 1px solid #36a2eb;
    border-radius: 5px;
    background: #f4f4f4;
    transition: background 0.3s ease;
}

.select-box select {
    width: auto;
    font-size: 16px;
    margin: 0 -5px 0 5px;
}

.select-box select:hover {
    background: #e0e0e0;
}

.select-box img {
    max-width: 25px;
}

.drop-list .icon {
    cursor: pointer;
    font-size: 22px;
    margin-top: 30px;
    transition: transform 0.3s ease;
}

.drop-list .icon:hover {
    transform: rotate(180deg);
}

form .exchange-rate {
    font-size: 17px;
    margin: 20px 0 30px;
    color: #333;
    transition: color 0.3s ease, transform 0.3s ease;
}

/* Error Message Styling */
form .exchange-rate.error {
    color: red;
    animation: shake 0.5s ease-in-out, fadeIn 0.5s ease-in-out;
}

@keyframes shake {
    0% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    50% { transform: translateX(5px); }
    75% { transform: translateX(-5px); }
    100% { transform: translateX(0); }
}

form button {
    height: 52px;
    color: white;
    font-size: 17px;
    cursor: pointer;
    background: #36a2eb;
    transition: background 0.3s ease;
}

form button:hover {
    background: #5340d4;
    box-shadow: 0px 4px 10px rgba(103, 90, 254, 0.4);
}

/* Responsive Styles */
@media (max-width: 500px) {
    .wrapper {
        width: 90%;
        padding: 20px;
    }

    form input, form button {
        height: 45px;
        font-size: 16px;
    }

    .drop-list .select-box {
        width: 100px;
    }

    .drop-list .icon {
        font-size: 18px;
        margin-top: 20px;
    }
}