body {
    margin: 0;
    padding: 0;
    font-family: 'Inter', sans-serif;
    text-align: center;
}

#container {
    width: 100%;
}

header {
    background: #FFA000;
    color: #ffffff;
}

#number {
    border-radius: 5px;
    border: 2px solid #F1B42F;
    width: fit-content;
    padding: 8px 20px;
    margin: 30px auto;
    font-size: 58px;
    box-sizing: border-box;
    font-weight: 800;
    background: transparent;
    display: block;
    text-align: center;
    user-select: none;
    outline: none;
    caret-color: transparent;
    color: #FFF;
}

#number::placeholder {
    color: #FFF;
}

#convert-btn {
    margin-bottom: 30px;
    border-radius: 5px;
    background: #FFF;
    padding: 12px 25px;
    border: none;
    box-sizing: border-box;
    width: 115px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: box-shadow 0.4s;
}

#convert-btn:hover {
    box-shadow: 0px 3px 4px #1b1b1b;
}

h2 {
    margin: 0;
    padding-top: 30px;
    font-size: 28px;
    font-weight: 800;
}

section {
    background: #1F2937;
    padding: 35px 25px;
}

.unit {
    background: #273549;
    padding: 20px;
    margin: 18px;
}

.unit h3 {
    color: #CCC1FF;
    margin: 0;
    padding-bottom: 10px;
    font-size: 20px;
    font-weight: 600;
}

.unit p {
    color: #ffffff;
    margin: 0;
    font-size: 14px;
    font-weight: 400;
}

#error-msg {
    display: none;
}

h1 {
    color: #FF0800;
}