/*
 * Typographies de bibus.fr : Lexend pour les titres, Inter pour le texte (SIL Open Font License,
 * cf. assets/fonts/OFL-*.txt), hébergées localement (CSP font-src 'self').
 */
@font-face {
    font-family: "Inter";
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url("../fonts/inter-latin-400-normal-Nq2MFc6.woff2") format("woff2");
}

@font-face {
    font-family: "Inter";
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url("../fonts/inter-latin-700-normal-sxlLprI.woff2") format("woff2");
}

@font-face {
    font-family: "Lexend";
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url("../fonts/lexend-latin-700-normal-7dfC32Z.woff2") format("woff2");
}

/*
 * Charte Bibus (transmise le 04/11/2026) : vert #BEBB1E, bleu #193257, gris #6E7071,
 * déclinée selon les formulaires de bibus.fr (libellés, champs, boutons, encadré de formulaire).
 * Contrastes vérifiés WCAG AA (texte ≥ 4,5:1, composants ≥ 3:1) :
 * - le vert (2,04:1 sur blanc) est réservé aux éléments décoratifs ;
 * - le bleu (12,8:1) porte titres, liens et boutons ;
 * - les bordures de champs sont en gris #6e7071 (4,98:1) : le gris #8f94a1 de bibus.fr (2,9:1) ne passe pas le critère 3.3.
 */
:root {
    --color-brand: #bebb1e;
    --color-primary: #193257;
    --color-primary-strong: #0f2140;
    --color-text: #222326;
    --color-label: #40444c;
    --color-muted: #5c616d;
    --color-border: #6e7071;
    --color-line: #d8d9df;
    --color-surface: #ffffff;
    --color-field: #fcfdfd;
    --color-surface-alt: #f4f6ea;
    --color-error: #ba201b;
    --color-error-surface: #fdf0ef;
    --color-focus: #1937ff;
    --radius: 4px;
    --space: 1rem;
    --field-height: 2.625rem;
    --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-heading: "Lexend", var(--font);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
    accent-color: var(--color-primary);
    caret-color: var(--color-primary);
}

body {
    margin: 0;
    font-family: var(--font);
    font-size: 1rem;
    line-height: 1.5;
    color: var(--color-text);
    background: var(--color-surface);
}

::selection {
    color: var(--color-primary);
    background: var(--color-brand);
}

.page {
    max-width: 37rem;
    margin: 0 auto;
    padding: calc(var(--space) * 1.5) var(--space) calc(var(--space) * 2.5);
}

.page--narrow {
    max-width: 26rem;
}

h1,
h2,
.refund-form legend {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--color-primary);
    text-wrap: balance;
}

h1 {
    margin: 0 0 calc(var(--space) * 1.5);
    font-size: 1.5rem;
    line-height: 1.25;
}

@media (min-width: 40rem) {
    h1 {
        font-size: 1.875rem;
    }
}

h2 {
    margin: calc(var(--space) * 2.5) 0 var(--space);
    font-size: 1.25rem;
    line-height: 1.5;
}

a {
    color: var(--color-primary);
    text-underline-offset: .15em;
}

a:hover {
    color: var(--color-primary-strong);
    text-decoration-thickness: 2px;
}

:focus-visible {
    outline: 2px solid var(--color-focus);
    outline-offset: 2px;
}

/* RGAA 12.7 : lien d'évitement, visible à la prise de focus. */
.skip-link {
    position: absolute;
    top: .5rem;
    left: .5rem;
    z-index: 10;
    padding: .5rem 1rem;
    font-weight: 700;
    color: #fff;
    background: var(--color-primary);
    border-radius: var(--radius);
    transform: translateY(-200%);
}

.skip-link:focus {
    color: #fff;
    transform: none;
}

/* Cible du lien d'évitement : conteneur non interactif, le focus n'a pas à y être matérialisé. */
main:focus {
    outline: none;
}

.nowrap {
    white-space: nowrap;
}

.visually-hidden {
    position: absolute !important;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
}

/* En-tête (masqué dans l'iframe de bibus.fr) */

.site-header {
    border-bottom: 4px solid var(--color-brand);
}

.site-header__inner {
    max-width: 37rem;
    margin: 0 auto;
    padding: .75rem var(--space);
}

.site-header__logo {
    display: block;
    width: 130px;
    height: auto;
}

/* Introduction */

.intro {
    margin-bottom: calc(var(--space) * 2);
    padding: calc(var(--space) * 1.25) calc(var(--space) * 1.5);
    background: var(--color-surface-alt);
    border-radius: var(--radius);
}

.intro p {
    margin: 0 0 .75em;
}

.intro p:last-child {
    margin-bottom: 0;
}

/* Formulaire : encadré comme sur bibus.fr */

.refund-form {
    padding: calc(var(--space) * 1.5) var(--space);
    border: 1px solid var(--color-line);
    border-radius: var(--radius);
}

@media (min-width: 40rem) {
    .refund-form {
        padding: calc(var(--space) * 2) calc(var(--space) * 2.5);
    }
}

.refund-form fieldset {
    margin: 0 0 calc(var(--space) * 2.5);
    padding: 0;
    border: 0;
}

.refund-form legend {
    margin-bottom: var(--space);
    padding: 0;
    font-size: 1.25rem;
    line-height: 1.5;
}

.form-note {
    margin: 0 0 calc(var(--space) * 1.5);
    font-size: .875rem;
    color: var(--color-muted);
}

.refund-form > .form-note:first-child {
    font-style: italic;
}

.form-note--secure {
    display: flex;
    gap: .5rem;
    margin: calc(var(--space) * 1.5) 0 0;
}

.form-note--secure::before {
    flex: none;
    width: 1.125rem;
    height: 1.125rem;
    margin-top: .05rem;
    content: "";
    background: no-repeat center / contain url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23193257' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='4' y='11' width='16' height='10' rx='2'/%3E%3Cpath d='M8 11V7a4 4 0 0 1 8 0v4'/%3E%3C/svg%3E");
}

.field {
    margin-bottom: calc(var(--space) * 1.5);
}

.field label {
    display: block;
    margin-bottom: .25rem;
    font-size: .875rem;
    font-weight: 700;
    line-height: 1.25rem;
    color: var(--color-label);
}

.field__required {
    margin-left: .125rem;
    color: var(--color-error);
}

.field__help {
    margin: 0 0 .375rem;
    font-size: .875rem;
    line-height: 1.25rem;
    color: var(--color-muted);
}

.field input:not([type="checkbox"]) {
    display: block;
    width: 100%;
    height: var(--field-height);
    padding: 0 var(--space);
    font: inherit;
    color: var(--color-text);
    background: var(--color-field);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
}

.field input:not([type="checkbox"]):hover {
    border-color: var(--color-label);
}

.field--invalid input:not([type="checkbox"]) {
    border-color: var(--color-error);
    box-shadow: inset 0 0 0 1px var(--color-error);
}

.field__errors {
    margin: 0 0 .375rem;
    padding: 0;
    list-style: none;
    font-size: .875rem;
    font-weight: 700;
    line-height: 1.25rem;
    color: var(--color-error);
}

/* Pictogramme décoratif (SVG, sans contenu textuel lu par les lecteurs d'écran). */
.field__errors li::before {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    margin-right: .375rem;
    vertical-align: -.2rem;
    content: "";
    background: no-repeat center / contain url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ba201b' stroke-width='2.25' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpath d='M12 7v6M12 16.5h.01'/%3E%3C/svg%3E");
}

#refund_request_iban,
#refund_request_bic,
#refund_request_walletNumber {
    font-variant-numeric: tabular-nums;
    letter-spacing: .03em;
}

/*
 * Code postal + ville côte à côte : chaque champ répartit libellé, aide, erreurs et saisie
 * sur les mêmes lignes de grille (subgrid), pour que les deux zones de saisie restent alignées
 * même si un seul des champs porte une aide ou une erreur.
 */
.field-group {
    display: grid;
    gap: 0 var(--space);
}

@media (min-width: 30rem) {
    .field-group {
        grid-template-columns: 9rem 1fr;
        grid-template-rows: repeat(4, auto);
    }

    @supports (grid-template-rows: subgrid) {
        .field-group > .field {
            display: grid;
            grid-row: span 4;
            grid-template-rows: subgrid;
            align-content: start;
        }

        .field-group > .field > label {
            grid-row: 1;
        }

        .field-group > .field > .field__help {
            grid-row: 2;
        }

        .field-group > .field > .field__errors {
            grid-row: 3;
        }

        .field-group > .field > input {
            grid-row: 4;
            align-self: end;
        }
    }
}

/* Section dépliable, sur le modèle du bloc « Fichiers » du formulaire de contact de bibus.fr. */
.disclosure {
    margin: 0 0 calc(var(--space) * 2);
}

.disclosure summary {
    display: flex;
    gap: var(--space);
    align-items: center;
    justify-content: space-between;
    padding: .25rem 0;
    font-size: 1.125rem;
    font-weight: 700;
    line-height: 1.75rem;
    color: var(--color-primary);
    list-style: none;
    cursor: pointer;
    border-radius: var(--radius);
}

.disclosure summary::-webkit-details-marker {
    display: none;
}

.disclosure__icon {
    flex: none;
    transition: transform .2s ease-out;
}

.disclosure[open] .disclosure__icon {
    transform: rotate(180deg);
}

.disclosure__content {
    padding-top: calc(var(--space) * 1.5);
    color: var(--color-muted);
}

.disclosure__content p {
    margin: 0 0 .75rem;
    line-height: 1.25rem;
}

.disclosure__content p:last-child {
    margin-bottom: 0;
}

/* Vérification anti-robot (Altcha v3), alignée sur la case de consentement de bibus.fr : case carrée de 24 px. */
.field--altcha {
    margin: 0 0 calc(var(--space) * 2);
}

/* RGAA 3.3 : bordure de la case à 4,98:1 sur fond blanc. */
altcha-widget {
    --altcha-color-base: var(--color-surface);
    --altcha-color-base-content: var(--color-label);
    --altcha-color-neutral: var(--color-line);
    --altcha-color-primary: var(--color-primary);
    --altcha-color-success: var(--color-primary);
    --altcha-color-error: var(--color-error);
    --altcha-border-color: var(--color-line);
    --altcha-border-radius: var(--radius);
    --altcha-checkbox-size: 24px;
    --altcha-checkbox-border-width: 1px;
    --altcha-checkbox-border-color: var(--color-border);
    --altcha-checkbox-border-radius: 2px;
    --altcha-checkbox-outline: 2px solid var(--color-focus);
    --altcha-max-width: 100%;
    display: block;
}

altcha-widget .altcha-checkbox-wrap label {
    margin: 0;
    font-size: 1rem;
    font-weight: 400;
    color: var(--color-label);
}

.field--invalid altcha-widget input[type="checkbox"] {
    border-color: var(--color-error);
    box-shadow: inset 0 0 0 1px var(--color-error);
}

/* Boutons */

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: var(--field-height);
    padding: .5rem 1.25rem;
    font: inherit;
    font-weight: 700;
    color: var(--color-field);
    background: var(--color-primary);
    border: 0;
    border-radius: var(--radius);
    cursor: pointer;
}

.button:hover {
    background: var(--color-primary-strong);
}

.button--link {
    min-height: auto;
    padding: 0;
    color: var(--color-primary);
    background: none;
    text-decoration: underline;
    text-underline-offset: .15em;
}

.button--link:hover {
    background: none;
    text-decoration-thickness: 2px;
}

@media (max-width: 30rem) {
    .refund-form .button {
        width: 100%;
    }
}

/* Messages */

.error-summary {
    margin-bottom: calc(var(--space) * 2);
    padding: calc(var(--space) * 1.25) calc(var(--space) * 1.5);
    color: var(--color-text);
    background: var(--color-error-surface);
    border: 1px solid var(--color-error);
    border-radius: var(--radius);
}

.error-summary h2 {
    margin: 0 0 .5rem;
    font-size: 1.125rem;
    color: var(--color-error);
}

.error-summary ul {
    margin: 0;
    padding-left: 1.2rem;
}

.error-summary li + li {
    margin-top: .25rem;
}

.error-summary a {
    color: var(--color-error);
    font-weight: 700;
}

.notice {
    margin-bottom: calc(var(--space) * 2);
    padding: calc(var(--space) * 1.5);
    background: var(--color-surface-alt);
    border-radius: var(--radius);
}

.notice h1 {
    font-size: 1.375rem;
}

.notice p:last-child {
    margin-bottom: 0;
}

.reference {
    display: inline-block;
    margin: 0 0 var(--space);
    padding: .5rem 1rem;
    font-size: 1.5rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    letter-spacing: .08em;
    color: var(--color-primary);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    user-select: all;
}

.legal {
    margin-top: calc(var(--space) * 2);
    font-size: .875rem;
}

.legal ul {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem 1.5rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

/* Espace sécurisé */

.admin-bar {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem var(--space);
    align-items: center;
    justify-content: space-between;
    margin-bottom: calc(var(--space) * 1.5);
    padding-bottom: .75rem;
    border-bottom: 1px solid var(--color-line);
}

.admin-bar p {
    margin: 0;
}

.stat {
    font-size: 1.125rem;
}

.table-wrapper {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: .875rem;
    font-variant-numeric: tabular-nums;
}

th,
td {
    padding: .5rem .75rem;
    text-align: left;
    border-bottom: 1px solid var(--color-line);
}

th {
    color: var(--color-label);
    background: var(--color-surface-alt);
}

@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
        animation: none !important;
    }
}