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

body {
    height: 100vh;
    width: 100%;
    background: var(--bg-color);
}

:root {
    /*Colors*/
    --bg-color: #161E31;
    --foreground-color: #2D3250;
    --error-color: rgb(250, 46, 87);
    --input_field-color: #424669;
    --input_text-color: #ffffff;
    --main_button-color: #F8B179;
    --main_button_hover-color: #e7995e;
    --secondary_button-color: #373b5d;
    --secondary_button_hover-color: #2f3250;
    --main_button_text-color: #2D3250;
    --main_button_text_hover-color: #373d60;
    --secondary_button_text-color: #e5e5e5;
    --secondary_button_text_hover-color: #cacaca;
}

.wrapper {
    height: auto;
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: var(--bg-color);
}

.display {
    height: auto;
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: var(--bg-color);
}

h1 {
    text-align: center;
    font-family: 'Ubuntu', sans-serif;
    font-size: 35px;
    font-weight: 600;
    margin: 30px 0;
    color: var(--main_button-color);
}

.error {
    font-family: 'Ubuntu', sans-serif;
    font-size: 20px;
    font-weight: 500;
    text-align: center;
    height: 30px;
    width: 100%;
    color: var(--error-color);
    margin-bottom: 10px;
    margin-top: 0;
    background: var(--bg-color);
}

.result {
    height: 120px;
    width: 100%;
    padding: 10px;
    border-radius: 5px;
    color: var(--input_text-color);
    text-align: center;
    font-size: 30px;
    font-weight: bold;
    background: var(--bg-color);
}

.box {
    height: 400px;
    width: 35%;
    margin: 0 auto;
    padding: 30px;
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-self: center;
    background: var(--foreground-color)
}

.fields {
    height: auto;
    width: 100%;
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.form-group {
    margin-bottom: 20px;
}

input {
    height: auto;
    width: 100%;
    padding: 10px;
    font-size: 30px;
    border: 0;
    border-radius: 10px;
    border-bottom: 2px solid var(--main_button-color);
    margin-right: 10px;
    background: transparent;
    color: var(--input_text-color);
    position: relative;
    background: var(--input_field-color);
}

.cb {
    display: flex;
    justify-content: center;
    align-self: center;
}

.calc_btn {
    background: var(--main_button-color);
    color: var(--main_button_text-color);
    padding: 10px 0;
    font-size: 20px;
    font-weight: 600;
    text-align: center;
    border: 3px solid var(--main_button-color);
    border-radius: 10px;
    cursor: pointer;
    position: relative;
    height: 70px;
    width: 200px;
    transition: all 0.4s ease;
}

.calc_btn:hover {
    background: var(--main_button_hover-color);
    color: var(--main_button_text_hover-color);
    border: 3px solid var(--main_button_hover-color);
}

.ref_btn {
    width: 100px;
    background: var(--secondary_button-color);
    color: var(--secondary_button_text-color);
    padding: 10px 20px;
    margin: 30px 0;
    font-size: 16px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.ref_btn:hover {
    background-color: var(--secondary_button_hover-color);
    color: var(--secondary_button_text_hover-color);
}



@media (max-width: 1325px) {
    h1 {
        margin-top: 40px;
        margin-bottom: 15px;
    }

    .error {
        margin: 12px 0;
    }

    .result {
        font-size: 27px;
        margin-top: 35px;
        margin-bottom: 20px;
    }

    .wrapper {
        height: auto;
        width: auto;
    }

    .box {
        height: auto;
        width: auto;
    }

    .container {
        margin-top: 14px;
        height: auto;
        width: auto;
    }
}

@media (max-width: 610px) {
    .result {
        font-size: 17px;
        height: 70px;
        margin-top: 10px;
        margin-bottom: 20px;
    }

    h1 {
        margin-bottom: 10px;
    }

    .container {
        margin-top: 12px;
        margin-bottom: 50px;
    }
}

@media (max-width: 400px) {
    h1 {
        font-size: 25px;
        margin-top: 40px;
        margin-bottom: 10px;
    }

    .error {
        margin-top: 5px;
        margin-bottom: 5px;
    }

    .result {
        font-size: 17px;
        height: 70px;
        margin-top: 10px;
        margin-bottom: 20px;
    }

    .box {
        height: 450px;
        width: 100%;
    }

    .container {
        height: auto;
        width: 100%;
        margin-top: 60px;
    }

    .calc_btn {
        padding: 8px 0;
        font-size: 16px;
        height: 60px;
        width: 150px;
    }

    .ref_btn {
        margin-bottom: 30px;
    }
}