.nxb-contact-form {
    --nxb-contact-background: #fff;
    --nxb-contact-colour: #222;
    --nxb-contact-accent: #e86513;
    --nxb-contact-button-background: #e86513;
    --nxb-contact-button-border: #e86513;
    --nxb-contact-button-colour: #fff;
    box-sizing: border-box;
    padding: clamp(2rem, 5vw, 4rem);
    background: var(--nxb-contact-background);
    color: var(--nxb-contact-colour);
}

.nxb-contact-form--background-light-grey { --nxb-contact-background: #f3f4f6; }
.nxb-contact-form--background-dark { --nxb-contact-background: #252525; --nxb-contact-colour: #fff; }
.nxb-contact-form--background-brand { --nxb-contact-background: #e86513; --nxb-contact-colour: #fff; --nxb-contact-accent: #252525; }

.nxb-contact-form--button-dark {
    --nxb-contact-button-background: #252525;
    --nxb-contact-button-border: #252525;
    --nxb-contact-button-colour: #fff;
}

.nxb-contact-form--button-light {
    --nxb-contact-button-background: #fff;
    --nxb-contact-button-border: #fff;
    --nxb-contact-button-colour: #252525;
}

.nxb-contact-form--button-outline {
    --nxb-contact-button-background: transparent;
    --nxb-contact-button-border: currentColor;
    --nxb-contact-button-colour: currentColor;
}

.nxb-contact-form__inner {
    box-sizing: border-box;
    width: min(100%, 72rem);
    margin-inline: auto;
}

.nxb-contact-form__intro {
    max-width: 48rem;
    margin-bottom: 2rem;
}

.nxb-contact-form__secondary-heading {
    margin: 0 0 .75rem;
    color: var(--nxb-contact-accent);
    font-size: .82rem;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.nxb-contact-form__heading {
    margin: 0;
    color: inherit;
    font-size: clamp(2rem, 5vw, 3.25rem);
    line-height: 1.08;
}

.nxb-contact-form__introduction {
    margin-top: 1.25rem;
    line-height: 1.7;
}

.nxb-contact-form__introduction > :first-child,
.nxb-contact-form__status > :first-child { margin-top: 0; }
.nxb-contact-form__introduction > :last-child,
.nxb-contact-form__status > :last-child { margin-bottom: 0; }

.nxb-contact-form__status {
    max-width: 48rem;
    margin-bottom: 1.25rem;
    border-left: .3rem solid transparent;
    line-height: 1.6;
}

.nxb-contact-form__status:empty { display: none; }
.nxb-contact-form__status--success,
.nxb-contact-form__status--error { padding: 1rem 1.25rem; }
.nxb-contact-form__status--success { border-left-color: #16803a; background: #eaf7ee; color: #174d29; }
.nxb-contact-form__status--error { border-left-color: #b42318; background: #fff0ee; color: #7a271a; }

.nxb-contact-form__form { max-width: 48rem; }

.nxb-contact-form__fields {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem;
}

.nxb-contact-form__field {
    display: flex;
    min-width: 0;
    flex-direction: column;
    gap: .45rem;
}

.nxb-contact-form__field--message { grid-column: 1 / -1; }

.nxb-contact-form__field label {
    color: inherit;
    font-weight: 700;
}

.nxb-contact-form__field input,
.nxb-contact-form__field textarea {
    box-sizing: border-box;
    width: 100%;
    border: 1px solid #767676;
    border-radius: 0;
    background: #fff;
    color: #171717;
    font: inherit;
}

.nxb-contact-form__field input { min-height: 3rem; padding: .65rem .8rem; }
.nxb-contact-form__field textarea { min-height: 9rem; padding: .8rem; resize: vertical; }

.nxb-contact-form__field input:focus-visible,
.nxb-contact-form__field textarea:focus-visible,
.nxb-contact-form__submit:focus-visible {
    outline: 3px solid var(--nxb-contact-accent);
    outline-offset: 3px;
}

.nxb-contact-form__field [aria-invalid="true"] { border-color: #b42318; border-width: 2px; }
.nxb-contact-form__field-error { color: #b42318; font-size: .9rem; font-weight: 700; }
.nxb-contact-form--background-dark .nxb-contact-form__field-error,
.nxb-contact-form--background-brand .nxb-contact-form__field-error { color: #fff; }

.nxb-contact-form__submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 3rem;
    margin-top: 1.5rem;
    padding: .75rem 1.5rem;
    border: 2px solid var(--nxb-contact-button-border);
    border-radius: 0;
    background: var(--nxb-contact-button-background);
    color: var(--nxb-contact-button-colour);
    cursor: pointer;
    font: inherit;
    font-weight: 700;
    transition: filter .2s ease;
}

.nxb-contact-form--button-small .nxb-contact-form__submit { min-height: 2.5rem; padding: .5rem 1rem; font-size: .9rem; }
.nxb-contact-form--button-large .nxb-contact-form__submit { min-height: 3.5rem; padding: 1rem 2rem; font-size: 1.1rem; }
.nxb-contact-form__submit:hover { filter: brightness(.92); }
.nxb-contact-form__submit:disabled { cursor: wait; opacity: .7; }

.nxb-contact-form__recaptcha-notice {
    margin: 1rem 0 0;
    color: #fff;
    font-size: .85rem;
    line-height: 1.5;
}

.nxb-contact-form__recaptcha-notice a {
    color: inherit;
    text-decoration: underline;
}

@media (max-width: 640px) {
    .nxb-contact-form { padding: 2rem 1rem; }
    .nxb-contact-form__fields { grid-template-columns: 1fr; }
    .nxb-contact-form__field--message { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
    .nxb-contact-form__submit { transition: none; }
}