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

body {
    background: #0D0D0D;
    color: #FFD700;
}

.container {
    margin: 12%;
    width: 90%;
    max-width: 700px;
}

.display {
    width: 100%;
    margin-top: 50px;
    margin-bottom: 30px;
    background: #1A1A1A;
    color: #FFD700;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 26px 20px;
    border-radius: 5px;
    border: 2px solid #FFD700;
}

.container h1 {
    font-weight: 500;
    font-size: 45px;
    color: #FFD700;
}

.container h1 span {
    color: #FFD700;
    border-bottom: 4px solid #FFD700;
    padding-bottom: 7px;
}

.display img {
    width: 30px;
    cursor: pointer;
    filter: brightness(0) saturate(100%) invert(83%) sepia(63%) saturate(363%) hue-rotate(2deg) brightness(100%) contrast(100%);
}

.display input {
    border: 0;
    outline: 0;
    font-size: 24px;
    background: transparent;
    color: #FFD700;
    width: 100%;
}

.display input::placeholder {
    color: #999999;
}

.container button img {
    width: 28px;
    margin-right: 10px;
    filter: brightness(0) saturate(100%) invert(83%) sepia(63%) saturate(363%) hue-rotate(2deg) brightness(100%) contrast(100%);
}

.container button {
    border: 0;
    outline: 0;
    background: #FFD700;
    color: #0D0D0D;
    font-size: 22px;
    font-weight: 300;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px 26px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.container button:hover {
    background: #e6c200;
}