@import url('https://fonts.googleapis.com/css2?family=Karla:ital,wght@0,200..800;1,200..800&display=swap');

* {
    margin: 0;
    padding: 0;
    border: none;
    outline: none;
    font-family: inherit;
    box-sizing: border-box;
}

:root {
    /* Primary colors */
    --green-200: hsl(148, 38%, 91%);
    --green-600: hsl(169, 82%, 27%);
    --red: hsl(0, 66%, 54%);

    /* Neutral colors */
    --white: hsl(0, 0%, 100%);
    --grey-500: hsl(186, 15%, 59%);
    --grey-900: hsl(187, 24%, 22%);

    /* Typography */
    --primary-font: "Karla";
    --fs: 1rem; /* Default font size */
    --regular: 400;
    --bold: 700;
}

body {
    display: grid;
    place-content: center;
    min-height: 100vh;
    padding: 4rem 0;
    font-family: var(--primary-font);
    background-color: var(--green-200);
}

main {
    width: min(90vw, 44rem);
    height: min-content;
    padding: 2rem;
    border-radius: 1rem;
    background-color: var(--white);
}

h1 {
    color: var(--grey-900);
}

form {
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
    margin-top: 2rem;
}

label, legend {
    position: relative;
    font-size: var(--fs);
    font-weight: var(--regular);
    color: var(--grey-900);
}

input[type="text"], input[type="email"], textarea, span, label, .submit {
    transition: border-color .2s ease-in, background-color .2s ease-in;
}

input[type="text"], input[type="email"], textarea {
    padding: 0.875rem 1.5rem;
    border: 2px solid var(--grey-500);
    border-radius: 0.5rem;
    font-size: var(--fs);
    font-weight: var(--regular);
    color: var(--grey-900);
    cursor: pointer;
}

input:hover, textarea:hover {
    border-color: var(--green-600);
}

input:focus, textarea:focus {
    cursor: text;
    border-color: var(--green-600);
}

input[aria-invalid="true"], textarea[aria-invalid="true"] {
    border-color: var(--red);
}

input[type="radio"], input[type="checkbox"] {
    position: absolute;
    left: 50%;
    bottom: 0;
    opacity: 0;
    transform: translateX(-50%);
    pointer-events: none;
}

label + input[type="text"], label + input[type="email"], label + textarea {
    margin-top: 0.625rem;
}

.asterisk {
    margin-left: 0.25rem;
    font-size: var(--fs);
    font-weight: var(--regular);
    color: var(--green-600);
}

.error-msg {
    margin-top: 0.625rem;
    font-size: 0.875rem;
    font-weight: var(--regular);
    color: var(--red);
}

.error-msg.empty {
    display: none;
}

.full-name {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.first-name, .last-name, .email-address, .message {
    display: flex;
    flex-direction: column;
}

.query-type {
    padding-top: 1rem;
}

.query-type .error-msg {
    margin-top: 1rem;
}

.radio-btns {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.radio-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    border: 2px solid var(--grey-500);
    border-radius: 0.5rem;
    cursor: pointer;
    user-select: none;
}

.radio-wrapper:hover, .radio-wrapper:has(input:focus) {
    border-color: var(--green-600);
}

.radio-wrapper:has(input:checked) {
    border-color: var(--green-600);
    background-color: var(--green-200);
}

.radio-btn {
    position: relative;
    width: 1rem;
    height: 1rem;
    flex-shrink: 0;
    border: 2px solid var(--grey-500);
    border-radius: 50%;
}

.radio-btn img {
    position: absolute;
    width: 1rem;
    height: 1rem;
    left: 50%;
    top: 50%;
    opacity: 0;
    transform: translate(-50%, -50%);
    transition: opacity 0.2s ease-in;
}

input[type="radio"]:checked + .radio-btn {
    border-color: transparent;
}

input[type="radio"]:checked + .radio-btn img {
    opacity: 1;
}

textarea {
    height: 7rem;
    resize: none;
}

.contact-consent {
    padding: 0.75rem 0;
}

.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
}

.checkbox {
    position: relative;
    width: 1rem;
    height: 1rem;
    flex-shrink: 0;
    border: 2px solid var(--grey-500);
}

.checkbox img {
    position: absolute;
    width: 1rem;
    height: 1rem;
    left: 50%;
    top: 50%;
    opacity: 0;
    transform: translate(-50%, -50%);
    transition: opacity 0.2s ease-in;
}

.label-text {
    line-height: 1.4;
}

.label-text .last-word {
    text-wrap: nowrap;
}

input[type="checkbox"]:checked + .checkbox {
    border-color: transparent;
}

input[type="checkbox"]:checked + .checkbox img {
    opacity: 1;
}

.checkbox-wrapper:hover .checkbox, input:focus + .checkbox {
    border-color: var(--green-600);
}

.submit {
    padding: 1rem 0;
    border-radius: 0.5rem;
    font-size: var(--fs);
    font-weight: var(--regular);
    color: var(--white);
    background-color: var(--green-600);
    cursor: pointer;
}

.submit:hover, .submit:focus {
    background-color: var(--grey-900);
}

.success-message {
    display: none;
    position: fixed;
    left: 50%;
    top: 0;
    padding: 1.5rem;
    border-radius: 0.75rem;
    background-color: var(--grey-900);
    animation: slideDownFadeIn 0.2s ease-in forwards;
}

.success-message.visible {
    display: block;
}

.confirmation {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.confirmation p {
    font-size: var(--fs);
    font-weight: var(--bold);
    color: var(--white);
}

.message {
    margin-top: 0.75rem;
    font-size: var(--fs);
    font-weight: var(--regular);
    color: var(--grey-500);
}

.fade-out {
    animation: slideUpFadeOut 0.2s ease-in forwards;
}

@keyframes slideDownFadeIn {
    from { opacity: 0; transform: translate(-50%, -50%); }
    to   { opacity: 1; transform: translate(-50%, 25px);}
}

@keyframes slideUpFadeOut {
    from { opacity: 1; transform: translate(-50%, 25px);}
    to   { opacity: 0; transform: translate(-50%, -50%); }
}

@media (max-width: 38rem) {
    body {
        padding: 2rem 0;
    }

    .full-name, .query-type {
        grid-template-columns: 1fr;
    }

    .full-name {
        gap: 1.75rem;
    }

    .query-type {
        gap: 0.75rem;
    }

    textarea {
        height: 12rem;
    }
}

@media (max-width: 28rem) {
    main {
        padding: 1.5rem;
    }
}