.form-edition-hero .site-header {
    z-index: 2;
}

@media (min-width: 901px) {
    .form-edition-hero .site-logo {
        width: clamp(112px, calc(11 * var(--layout-vw, 1vw)), 218px);
    }

    .form-edition-hero .primary-navigation {
        flex: 1;
        justify-content: space-around;
        gap: clamp(12px, calc(1.5 * var(--layout-vw, 1vw)), 30px);
        font-size: clamp(15px, calc(1.45 * var(--layout-vw, 1vw)), 29px);
    }
}

.campaign-form-main {
    min-height: 72vh;
    padding: clamp(72px, calc(9 * var(--layout-vw, 1vw)), 170px) var(--page-gutter) clamp(110px, calc(13 * var(--layout-vw, 1vw)), 230px);
    background: linear-gradient(90deg, var(--paper-pink) 0%, #fbe8ee 45%, var(--paper) 100%);
}

.campaign-form-shell {
    width: min(100%, 820px);
    margin: 0 auto;
}

.campaign-form-intro {
    max-width: 820px;
    margin-bottom: clamp(60px, calc(8 * var(--layout-vw, 1vw)), 130px);
}

.campaign-form-intro h1,
.campaign-form-thanks h1 {
    max-width: 1060px;
    margin: 0;
    font-size: var(--type-display);
    font-weight: 500;
    letter-spacing: var(--tracking-display);
    line-height: 0.9;
}

.campaign-form-intro__text,
.campaign-form-thanks__text {
    max-width: 780px;
    margin-top: clamp(30px, calc(4 * var(--layout-vw, 1vw)), 64px);
    font-size: var(--type-body-large);
    line-height: 1.35;
}

.campaign-form-intro__text > :first-child,
.campaign-form-thanks__text > :first-child {
    margin-top: 0;
}

/* Keep the desktop form and introduction aligned inside double page gutters. */
:is(.form-kind-participation, .form-kind-newsletter) .campaign-form-main:not(.campaign-form-main--thanks) {
    padding-inline: calc(var(--page-gutter) * 2);
}

:is(.form-kind-participation, .form-kind-newsletter) .campaign-form-main:not(.campaign-form-main--thanks) .campaign-form-shell {
    width: 100%;
}

:is(.form-kind-participation, .form-kind-newsletter) .campaign-form-intro,
:is(.form-kind-participation, .form-kind-newsletter) .campaign-form-intro h1,
:is(.form-kind-participation, .form-kind-newsletter) .campaign-form-intro__text {
    max-width: none;
}

.campaign-form-panel {
    padding: clamp(30px, calc(4 * var(--layout-vw, 1vw)), 66px);
    background: rgba(255, 254, 253, 0.68);
}

.campaign-form-errors,
.campaign-form-field--error {
    scroll-margin-top: 24px;
}

.campaign-form-errors {
    max-width: 840px;
    margin-bottom: 44px;
    padding: 24px 28px;
    border-left: 8px solid var(--pink);
    background: rgba(255, 255, 255, 0.82);
}

.campaign-form-errors strong {
    font-size: var(--type-body-large);
    font-weight: 500;
}

.campaign-form-errors p {
    margin: 8px 0 0;
}

.campaign-form-section {
    min-width: 0;
    margin: 0;
    padding: clamp(29.4px, calc(3.5 * var(--layout-vw, 1vw)), 53.2px) 0 clamp(54px, calc(6 * var(--layout-vw, 1vw)), 90px);
    border: 0;
    border-top: 2px solid var(--ink);
}

/* The newsletter has one short section, so its fields should follow the
   introduction immediately instead of looking like a second page below it. */
.form-kind-newsletter .campaign-form-intro {
    margin-bottom: clamp(48px, calc(6 * var(--layout-vw, 1vw)), 84px);
}

.form-kind-newsletter .campaign-form-section {
    padding-top: clamp(15.4px, calc(1.75 * var(--layout-vw, 1vw)), 25.2px);
}

.form-kind-newsletter .campaign-form-section legend {
    margin-bottom: clamp(16.8px, calc(1.75 * var(--layout-vw, 1vw)), 25.2px);
    font-size: clamp(24px, calc(2.4 * var(--layout-vw, 1vw)), 38px);
}

.campaign-form-section legend {
    width: 100%;
    margin: 0 0 clamp(22.4px, calc(2.8 * var(--layout-vw, 1vw)), 40.6px);
    padding: 0;
    display: flex;
    align-items: center;
    gap: 18px;
    font-size: clamp(32px, calc(3.6 * var(--layout-vw, 1vw)), 62px);
    font-weight: 500;
    letter-spacing: var(--tracking-direction);
    line-height: 1;
}

.campaign-form-section legend span {
    padding: 8px 10px 7px;
    background: var(--black);
    color: #fff;
    font-size: 14px;
    letter-spacing: 0.04em;
}

.campaign-form-section--organisation legend span,
.campaign-form-section--publication legend span {
    background: var(--black);
}

.campaign-form-section--activity legend span,
.campaign-form-section--newsletter legend span {
    background: var(--black);
    color: #fff;
}

.campaign-form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(28px, calc(3 * var(--layout-vw, 1vw)), 46px) clamp(22px, calc(3 * var(--layout-vw, 1vw)), 44px);
}

.campaign-form-field {
    min-width: 0;
}

.campaign-form-field--full {
    grid-column: 1 / -1;
}

.campaign-form-field > label:not(.campaign-form-check) {
    display: block;
    margin-bottom: 12px;
    font-size: var(--type-body);
    font-weight: 500;
    line-height: 1.35;
}

.campaign-form-field label b,
.campaign-form-check b {
    color: var(--blue-dark);
    font-weight: 500;
}

.campaign-form-field input:not([type="checkbox"]):not([type="radio"]),
.campaign-form-field select,
.campaign-form-field textarea {
    width: 100%;
    min-height: 58px;
    padding: 14px 16px;
    border: 2px solid var(--ink);
    border-radius: 0;
    background: rgba(255, 255, 255, 0.78);
    color: var(--ink);
    font: inherit;
    font-size: max(16px, var(--type-body));
}

.campaign-form-file {
    min-height: 58px;
    position: relative;
    display: flex;
    align-items: stretch;
    border: 2px solid var(--ink);
    background: rgba(255, 255, 255, 0.78);
}

.campaign-form-field .campaign-form-file input[type="file"] {
    position: absolute;
    inset: 0;
    z-index: 1;
    width: 100%;
    height: 100%;
    padding: 0;
    opacity: 0;
    cursor: pointer;
}

.campaign-form-file__button,
.campaign-form-file__summary {
    min-width: 0;
    padding: 14px 16px;
    display: flex;
    align-items: center;
    font-size: max(16px, var(--type-body));
    overflow-wrap: anywhere;
}

.campaign-form-file__button {
    flex: 0 0 auto;
    background: var(--ink);
    color: #fff;
}

.campaign-form-file__summary {
    flex: 1;
}

.campaign-form-file:has(input[type="file"]:hover) .campaign-form-file__button,
.campaign-form-file:has(input[type="file"]:focus-visible) .campaign-form-file__button {
    background: var(--blue-dark);
}

.campaign-form-file:has(input[type="file"]:focus-visible) {
    outline: 3px solid var(--blue-dark);
    outline-offset: 3px;
}

.campaign-form-field textarea {
    min-height: 180px;
    resize: vertical;
}

.campaign-form-field select[multiple] {
    min-height: 180px;
}

/* Use one predictable select treatment everywhere. In particular, desktop
   Safari otherwise keeps its compact rounded native control. */
.campaign-form-field select:not([multiple]) {
    -webkit-appearance: none;
    appearance: none;
    padding-right: 46px;
    background-color: rgba(255, 255, 255, 0.78);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='m1 1 5 5 5-5' fill='none' stroke='%23412d25' stroke-width='1.5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 12px 8px;
}

.campaign-form-field--error input:not([type="checkbox"]):not([type="radio"]),
.campaign-form-field--error select,
.campaign-form-field--error textarea {
    border-color: #9e263c;
    border-width: 4px;
}

.campaign-form-field--error .campaign-form-file {
    border-color: #9e263c;
    border-width: 4px;
}

.campaign-form-check {
    min-height: 48px;
    display: grid;
    grid-template-columns: 26px minmax(0, 1fr);
    gap: 14px;
    align-items: start;
    font-size: var(--type-body);
    line-height: 1.35;
}

.campaign-form-check input {
    width: 24px;
    height: 24px;
    margin: 2px 0 0;
    accent-color: var(--blue);
}

.campaign-form-field input[type="radio"],
.campaign-form-field input[type="checkbox"] {
    width: 22px;
    height: 22px;
    margin: 2px 8px 2px 0;
    vertical-align: middle;
    accent-color: var(--blue);
}

.campaign-form-field input[type="radio"] + label,
.campaign-form-field input[type="checkbox"] + label {
    vertical-align: middle;
}

.campaign-form-help,
.campaign-form-error,
.campaign-form-privacy {
    max-width: 780px;
    margin: 10px 0 0;
    font-size: 15px;
    line-height: 1.45;
}

.campaign-form-help,
.campaign-form-privacy {
    color: rgba(58, 45, 40, 0.76);
}

.campaign-form-error {
    color: #8d1d32;
    font-weight: 500;
}

.campaign-form-submit {
    width: fit-content;
    min-height: 58px;
    margin-top: 12px;
    padding: 14px 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
    border: 0;
    border-radius: 0;
    background: linear-gradient(90deg, rgba(48, 48, 48, 0.82) 0%, rgba(48, 48, 48, 0.28) 100%);
    color: #fff;
    font: inherit;
    font-size: var(--type-body);
    font-weight: 500;
    line-height: 1;
    text-decoration: none;
    cursor: pointer;
}

.campaign-form-submit:hover,
.campaign-form-submit:focus-visible {
    background: var(--ink);
}

.campaign-form-privacy {
    margin-top: 18px;
}

.campaign-form-main--thanks {
    min-height: 780px;
}

.campaign-form-thanks {
    max-width: 1060px;
}

.campaign-form-thanks .campaign-form-submit {
    margin-top: clamp(42px, calc(5 * var(--layout-vw, 1vw)), 78px);
}

@media (max-width: 900px) {
    .campaign-form-errors,
    .campaign-form-field--error {
        /* Keep the first invalid answer below the fixed mobile menu button. */
        scroll-margin-top: calc(100px + env(safe-area-inset-top, 0px));
    }

    .campaign-form-main,
    :is(.form-kind-participation, .form-kind-newsletter) .campaign-form-main:not(.campaign-form-main--thanks) {
        padding-inline: var(--mobile-content-gutter);
    }

    .campaign-form-shell {
        width: 100%;
    }

    .campaign-form-panel {
        /* Keep the coloured outer frame without narrowing the form fields. */
        margin-inline: calc(var(--mobile-panel-gutter) - var(--mobile-content-gutter));
        padding-inline: 12px;
    }
}

@media (max-width: 760px) {
    .campaign-form-main {
        min-height: auto;
        padding-top: 62px;
    }

    .campaign-form-intro {
        margin-bottom: 58px;
    }

    .form-kind-newsletter .campaign-form-intro {
        margin-bottom: 48px;
    }

    .form-kind-newsletter .campaign-form-section {
        padding-top: 14px;
    }

    .campaign-form-grid {
        grid-template-columns: 1fr;
    }

    .campaign-form-field--full {
        grid-column: auto;
    }

    .campaign-form-section legend {
        align-items: flex-start;
    }

    .campaign-form-submit {
        width: 100%;
    }
}

@media (max-width: 420px) {
    .campaign-form-file {
        flex-direction: column;
    }

    .campaign-form-file__button {
        justify-content: center;
    }
}