body {
    margin: 0;
    padding: 0;
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #012d48, #034159);
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.container {
    text-align: center;
    padding: 40px;
    width: 90%;
    max-width: 600px;
    background: #021d30;
    border-radius: 15px;
    box-shadow: 0 0 25px rgba(0, 255, 128, 0.15);
}

.container h1 {
    font-weight: 600;
    font-size: 42px;
    margin-bottom: 20px;
}

.container h1 span {
    color: #01c26b;
    border-bottom: 4px solid #01c26b;
    padding-bottom: 6px;
}

.display {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.08);
    padding: 20px;
    border-radius: 10px;
    margin: 30px 0;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.display input {
    border: none;
    outline: none;
    background: transparent;
    font-size: 24px;
    color: #fff;
    width: 90%;
}

.display img {
    width: 30px;
    cursor: pointer;
}

.container button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 20px;
    background: #01a360;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 20px;
    font-weight: 500;
    cursor: pointer;
    transition: 0.3s ease;

    margin: 0 auto;
    width: fit-content;

}

.container button img {
    width: 26px;
}

.container button:hover {
    background: #01c26b;
    transform: scale(1.05);
}