/* 
VARIABLES 
*/
:root {
    /* Colors */
    --color-accent: #407d8c;
    --color-input-placeholders: #6f6f6f;
    --color-input-background: #ffffff;
    --color-labels: #e1e1e1;
    --color-button-label: #ffffff;
    --color-button-background: #407d8c;
    --color-button-background-hover: #44a1b8;
}

/* Some sensible defaults and layouts */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
body {
    background: black;
    background-image: url('https://images.unsplash.com/photo-1523961131990-5ea7c61b2107?ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&ixlib=rb-1.2.1&auto=format&fit=crop&w=1674&q=80');
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
    min-height: 100vh;
    scroll-behavior: smooth;
    text-rendering: optimizeLegibility;

    font-family: 'Roboto', sans-serif;
    font-size: 0.875rem;
    color: white;
}
a:not([class]) {
    text-decoration-skip-ink: auto;
}
img {
    max-width: 100%;
    height: auto;
    vertical-align: middle;
}
input,
button,
textarea,
select {
    font: inherit;
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Layout */

.container {
    margin: 0 auto;
    max-width: 700px;
    padding: 10px;
    /* padding: 4rem; */
}

/* HEADINGS */

.title {
    text-align: center;
    font-size: 2rem;
    margin-top: 20px;
    margin-bottom: 10px;
}
.subtitle {
    text-align: center;
    font-size: 0.875rem;
    font-style: italic;
    margin-bottom: 20px;
}

/* FORMS */

.form {
    background-color: rgba(33, 58, 63, 0.83);
    border: 3px solid var(--color-accent);
    padding: 15px;
    border-radius: 30px 0 30px 0;
}
.form > * + * {
    margin-top: 30px;
}
.name-group > * + * {
    margin-top: 30px;
}
.form-group__label {
    font-weight: var(--font-weight-bold);
    color: var(--color-labels);
    margin: 10px 0;
}
.form-group__input {
    background-color: var(--color-input-background);
    outline: none;
    border: none;
    width: 100%;
    border-radius: 5px;
    padding: 0.55rem;
}
.form-group__input:focus {
    outline: 2px solid var(--color-accent);
}
.radio,
.checkbox {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: left;
    cursor: pointer;
}
.radio__input,
.checkbox__input {
    position: absolute;
    opacity: 0;
    height: 18px;
    width: 18px;
    cursor: pointer;
}
.radio__label,
.checkbox__label {
    display: block;
    margin-left: 28px;
    padding: 7px 0;
}
.radio__label::before,
.checkbox__label::before {
    position: absolute;
    top: 6px;
    left: 0;
    content: '';
    display: inline-block;
    height: 18px;
    width: 18px;
    background-color: var(--color-input-background);
    border-radius: 2px;
}
.radio__label::before {
    border-radius: 50%;
}
.radio__label::after,
.checkbox__label::after {
    position: absolute;
    top: 8px;
    left: 2px;
    content: '';
    display: none;
    height: 14px;
    width: 14px;
    background-color: var(--color-accent);
    border-radius: 2px;
}
.radio__label::after {
    border-radius: 50%;
}
.radio__input:checked ~ .radio__label::after,
.checkbox__input:checked ~ .checkbox__label::after {
    display: block;
}

@media screen and (min-width: 768px) {
    body {
        font-size: 1.125rem;
    }
    .title {
        font-size: 3rem;
        margin-top: 110px;
    }
    .subtitle {
        font-size: 1.125rem;
    }
    .form {
        padding: 4.4rem 3.3rem;
        border-radius: 130px 0 130px 0;
    }
    .name-group {
        display: flex;
        flex-direction: row;
        justify-content: space-between;
    }
    .name-group > * + * {
        margin-top: 0;
    }
    .form-group.right,
    .form-group.left {
        width: 49%;
    }
}

/* BUTTONS */

.btn {
    background-color: var(--color-button-background);
    border: none;
    border-radius: 5px;
    padding: 10px;
    color: var(--color-button-label);
    font-weight: var(--font-weight-bold);
    width: 100%;
    transition: 0.3s all ease-in;
}
.btn:hover {
    background-color: var(--color-button-background-hover);
}