/* ==========================================================================
   AT THEME — Feuille de style principale
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Variables globales (thème clair)
   -------------------------------------------------------------------------- */
:root {
    /* Fond (clair, par défaut) */
    --at-color-bg: #ffffff;
    --at-color-bg-alt: #f4f6f8;
    --at-color-bg-elevated: #eef1f4;

    /* Texte */
    /*--at-color-text: #0b2545; */
    --at-color-text: #1f3c4e;
    --at-color-text-muted: #3c5a75;
    --at-color-text-dim: #6b7f92;

    /* Accent principal (vert) */
    /*--at-color-accent: #2f6f4f; */
    --at-color-accent: #7fa9a0;
    --at-color-accent-hover: #24593f;

    /* Accent secondaire (ocre) — décoratif uniquement, pas de texte dessus */
    --at-color-secondary: #b8860b;
    /*--at-color-secondary: #eob45a5;*/
    --at-color-secondary-hover: #96700d;

    /* Couleur de texte à utiliser PAR-DESSUS un fond accent */
    --at-color-on-accent: #ffffff;

    /* États */
    --at-color-success: #2f6f4f;
    --at-color-danger: #b23b3b;
    --at-color-warning: #b8860b;

    --at-color-border: #d7dde3;

    /* (typographie, espacements, etc. — inchangés) */
    --at-font-base: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    --at-font-size-base: 1rem;
    --at-line-height-base: 1.6;
    --at-space-xs: 0.5rem;
    --at-space-sm: 1rem;
    --at-space-md: 1.5rem;
    --at-space-lg: 2.5rem;
    --at-space-xl: 4rem;
    --at-content-width: 1200px;
    --at-radius: 8px;
    --at-transition: 0.2s ease;
}

/* Thème sombre — activé via data-theme="dark" sur <html> */
[data-theme="dark"] {
    --at-color-bg: #0d0f14;
    --at-color-bg-alt: #151821;
    --at-color-bg-elevated: #1c2029;

    --at-color-text: #e8e9ed;
    --at-color-text-muted: #a3a7b3;
    --at-color-text-dim: #6b6f7d;

    --at-color-accent: #7c9eff;
    --at-color-accent-hover: #6a8aef;

    --at-color-secondary: #e0b95c;
    --at-color-secondary-hover: #c9a34e;

    --at-color-on-accent: #0d0f14;

    --at-color-success: #4caf7d;
    --at-color-danger: #e05c5c;
    --at-color-warning: #e0b95c;

    --at-color-border: #2a2e3a;
}

/* --------------------------------------------------------------------------
   2. Reset minimal
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background-color: var(--at-color-bg);
    color: var(--at-color-text);
    font-family: var(--at-font-base);
    font-size: var(--at-font-size-base);
    line-height: var(--at-line-height-base);
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--at-color-accent);
    text-decoration: none;
    transition: color var(--at-transition);
}

a:hover,
a:focus {
    color: var(--at-color-accent-hover);
}

/* Accessibilité : contour de focus visible, jamais supprimé sans remplacement */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--at-color-accent);
    outline-offset: 2px;
}

h1, h2, h3, h4, h5, h6 {
    margin: 0 0 var(--at-space-sm);
    line-height: 1.25;
    font-weight: 600;
}

p {
    margin: 0 0 var(--at-space-sm);
}

ul, ol {
    margin: 0 0 var(--at-space-sm);
    padding-left: var(--at-space-md);
}

/* --------------------------------------------------------------------------
   Section "accessibilité bouton toggle" 
   -------------------------------------------------------------------------- */
.theme-toggle {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
    border-radius: 50%;
    border: 1px solid var(--at-color-border);
    background: conic-gradient(from 180deg, var(--at-color-text) 0deg 180deg, var(--at-color-bg) 180deg 360deg);
    cursor: pointer;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
    outline: 2px solid var(--at-color-accent);
    outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   3. Classes utilitaires
   -------------------------------------------------------------------------- */
.is-hidden {
    display: none !important;
}

.container {
    width: 100%;
    max-width: var(--at-content-width);
    margin-inline: auto;
    padding-inline: var(--at-space-sm);
}

.screen-reader-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* --------------------------------------------------------------------------
   4. Header
   -------------------------------------------------------------------------- */
.site-header {
    background-color: var(--at-color-bg-alt);
    border-bottom: 1px solid var(--at-color-border);
}

.site-header__inner {
    max-width: var(--at-content-width);
    margin-inline: auto;
    padding: var(--at-space-sm);
    display: flex;
    align-items: center;
    gap: var(--at-space-lg);
}

.theme-toggle-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    flex-shrink: 0;
}

.theme-toggle__label {
    font-size: 0.7rem;
    color: var(--at-color-text-muted);
    white-space: nowrap;
    text-align: center;
}

.site-branding .site-title {
    color: var(--at-color-text);
    font-size: 1.5rem;
    font-weight: 700;
}

.main-navigation .main-menu {
    list-style: none;
    display: flex;
    gap: var(--at-space-md);
    margin: 0;
    padding: 0;
}

.main-navigation .main-menu a {
    color: var(--at-color-text-muted);
}

.main-navigation .main-menu a:hover,
.main-navigation .main-menu a:focus {
    color: var(--at-color-text);
}

/* --------------------------------------------------------------------------
   5. Contenu principal
   -------------------------------------------------------------------------- */
.site-main {
    max-width: var(--at-content-width);
    margin-inline: auto;
    padding: var(--at-space-lg) var(--at-space-sm);
    min-height: 60vh; /* évite un footer "collé" sur les pages courtes */
}

/* --------------------------------------------------------------------------
   6. Footer
   -------------------------------------------------------------------------- */
.site-footer {
    background-color: var(--at-color-bg-alt);
    border-top: 1px solid var(--at-color-border);
    margin-top: var(--at-space-xl);
}

.site-footer__inner {
    max-width: var(--at-content-width);
    margin-inline: auto;
    padding: var(--at-space-lg) var(--at-space-sm);
}

.footer-widgets {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--at-space-md);
    margin-bottom: var(--at-space-md);
}

.footer-widget-title {
    color: var(--at-color-text);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-navigation .footer-menu {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: var(--at-space-sm);
    margin: 0 0 var(--at-space-sm);
    padding: 0;
}

.footer-navigation .footer-menu a {
    color: var(--at-color-text-muted);
    font-size: 0.9rem;
}

.site-footer__bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--at-space-sm);
    padding-top: var(--at-space-sm);
    border-top: 1px solid var(--at-color-border);
}

.site-footer__copyright {
    margin: 0;
}

.footer-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--at-space-xs);
    margin: 0; /* retire l'ancien margin-bottom, plus nécessaire ici */
}

.footer-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    background-color: var(--at-color-bg-elevated);
    border: 1px solid var(--at-color-border);
    border-radius: var(--at-radius);
    color: var(--at-color-text);
    font-size: 0.9rem;
    line-height: 1; /* évite que l'emoji hérite d'un line-height de paragraphe */
    transition: background-color var(--at-transition), border-color var(--at-transition);
}

.footer-btn span[aria-hidden="true"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1em; /* légèrement plus grand que le texte, ajuste si besoin */
    line-height: 1;
}

.footer-btn:hover,
.footer-btn:focus {
    background-color: var(--at-color-border);
    border-color: var(--at-color-accent);
    color: var(--at-color-text);
}

/* --------------------------------------------------------------------------
   7. Bannière cookies (RGPD)
   -------------------------------------------------------------------------- */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    background-color: var(--at-color-bg-elevated);
    border-top: 1px solid var(--at-color-border);
    padding: var(--at-space-sm);
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.4);
}

.cookie-banner__content {
    max-width: var(--at-content-width);
    margin-inline: auto;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--at-space-sm);
}

.cookie-banner__content p {
    margin: 0;
    flex: 1 1 300px;
    font-size: 0.9rem;
    color: var(--at-color-text-muted);
}

.cookie-banner__buttons {
    display: flex;
    gap: var(--at-space-xs);
    flex-shrink: 0;
}

.cookie-btn {
    padding: 0.5rem 1.25rem;
    border-radius: var(--at-radius);
    border: 1px solid var(--at-color-border);
    font-size: 0.9rem;
    cursor: pointer;
    transition: background-color var(--at-transition), border-color var(--at-transition);
}

.cookie-btn--accept {
    background-color: var(--at-color-success);
    border-color: var(--at-color-success);
    color: var(--at-color-on-accent);
    font-weight: 600;
}

.cookie-btn--accept:hover,
.cookie-btn--accept:focus {
    filter: brightness(1.1);
}

.cookie-btn--refuse {
    background-color: transparent;
    color: var(--at-color-text-muted);
}

.cookie-btn--refuse:hover,
.cookie-btn--refuse:focus {
    color: var(--at-color-text);
    border-color: var(--at-color-text-muted);
}

.social-links {
    display: flex;
    gap: var(--at-space-sm);
    margin-bottom: var(--at-space-md);
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--at-color-bg-elevated);
    color: var(--at-color-text-muted);
    transition: color var(--at-transition), background-color var(--at-transition);
}

.social-links a:hover,
.social-links a:focus {
    color: var(--at-color-text);
    background-color: var(--at-color-border);
}

.social-links svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

/* --------------------------------------------------------------------------
   8. Responsive — mobile first léger
   -------------------------------------------------------------------------- */
@media (max-width: 640px) {

    .cookie-banner__content {
        flex-direction: column;
        align-items: stretch;
    }

    .cookie-banner__buttons {
        justify-content: flex-end;
    }
}

.cookie-banner.is-hidden {
    display: none;
}

/* --------------------------------------------------------------------------
   Hero (page d'accueil)
   -------------------------------------------------------------------------- */
.hero {
    position: relative;
    min-height: 60vh;
    display: flex;
    align-items: flex-end;
    overflow: hidden;
}

.hero picture,
.hero img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(13, 15, 20, 0.2) 0%, rgba(13, 15, 20, 0.9) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: var(--at-content-width);
    margin-inline: auto;
    padding: var(--at-space-xl) var(--at-space-sm) var(--at-space-lg);
    width: 100%;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-content h1,
.hero-tagline {
    color: #ffffff; /* toujours blanc, peu importe le thème actif */
}

.hero-content h1 {
    font-family: "Playfair Display", serif;
    font-size: clamp(1.75rem, 4vw, 3rem);
    margin-bottom: var(--at-space-xs);
    
}

.hero-tagline {
    font-size: 1.1rem;
    margin: 0;
    max-width: 700px;
}

.hero-buttons {
    display: flex;
    gap: var(--at-space-sm);
    margin-top: var(--at-space-md);
    flex-wrap: wrap;
    justify-content: center;
}

.hero-btn {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.75rem;
    border-radius: var(--at-radius);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    border: 2px solid transparent;
    transition: background-color var(--at-transition), border-color var(--at-transition), color var(--at-transition);
}

.hero-btn--primary {
    background-color: var(--at-color-accent);
    color: var(--at-color-on-accent);
}

.hero-btn--primary:hover,
.hero-btn--primary:focus-visible {
    background-color: var(--at-color-accent-hover);
    color: var(--at-color-on-accent);
}

.hero-btn--outline {
    background-color: transparent;
    border-color: #ffffff;
    color: #ffffff;
}

.hero-btn--outline:hover,
.hero-btn--outline:focus-visible {
    background-color: #ffffff;
    color: var(--at-color-text);
}

/* --------------------------------------------------------------------------
   Section "À propos" + Bureau
   -------------------------------------------------------------------------- */
.front-intro,
.front-bureau {
    padding-block: var(--at-space-lg);
}

.bureau-list {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--at-space-sm);
}

.bureau-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: var(--at-space-sm);
    background-color: var(--at-color-bg-alt);
    border: 1px solid var(--at-color-border);
    border-radius: var(--at-radius);
}

.bureau-role {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--at-color-text-dim);
}

.bureau-nom {
    font-weight: 600;
    color: var(--at-color-text);
}

/* --------------------------------------------------------------------------
   Sous-menu déroulant (dropdown)
   -------------------------------------------------------------------------- */
.main-menu .menu-item-has-children > a {
    cursor: default;
}

.main-menu li {
    position: relative;
}

.main-menu .sub-menu {
    list-style: none;
    margin: 0;
    padding: 0.5rem 0;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 240px;
    background-color: var(--at-color-bg-elevated);
    border: 1px solid var(--at-color-border);
    border-radius: var(--at-radius);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
    z-index: 100;

    /* caché par défaut */
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: opacity var(--at-transition), transform var(--at-transition), visibility var(--at-transition);
}

.main-menu .sub-menu li {
    width: 100%;
}

.main-menu .sub-menu a {
    display: block;
    padding: 0.6rem 1rem;
    color: var(--at-color-text-muted);
    white-space: nowrap;
}

.main-menu .sub-menu a:hover,
.main-menu .sub-menu a:focus {
    background-color: var(--at-color-border);
    color: var(--at-color-text);
}

/* Affichage au survol ET au focus clavier (accessibilité, pas de JS requis) */
.main-menu .menu-item-has-children:hover > .sub-menu,
.main-menu .menu-item-has-children:focus-within > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Petit chevron indicateur sur les items avec sous-menu */
.main-menu .menu-item-has-children > a::after {
    content: "▾";
    display: inline-block;
    margin-left: 0.35rem;
    font-size: 0.7em;
    color: var(--at-color-text-dim);
}

/* --------------------------------------------------------------------------
   Menu burger (smartphone / tablette)
   -------------------------------------------------------------------------- */
.menu-toggle {
    display: none; /* affiché uniquement sous 900px, voir plus bas */
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 0;
    flex-shrink: 0;
    background: transparent;
    border: 1px solid var(--at-color-border);
    border-radius: var(--at-radius);
    cursor: pointer;
}

.menu-toggle:hover,
.menu-toggle:focus-visible {
    border-color: var(--at-color-accent);
}

.menu-toggle__bar {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--at-color-text);
    border-radius: 2px;
    transition: transform var(--at-transition), opacity var(--at-transition);
}

/* Les 3 barres se transforment en croix quand le menu est ouvert */
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(2) {
    opacity: 0;
}
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 900px) {
    .site-header__inner {
        flex-wrap: wrap;
        gap: var(--at-space-sm);
    }

    .site-branding {
        margin-right: auto;
    }

    /* Un logo de 90-100px de haut prend trop de place sur un téléphone */
    .site-branding img {
        max-height: 60px;
        width: auto;
    }

    .js .menu-toggle {
        display: inline-flex;
    }

    /* Le menu passe sous l'en-tête, sur toute la largeur */
    .main-navigation {
        flex-basis: 100%;
        order: 3;
        margin-left: 0;
    }

    .js .main-navigation {
        display: none;
    }

    .js .main-navigation.is-open {
        display: block;
    }

    .main-navigation .main-menu {
        flex-direction: column;
        flex-wrap: nowrap;
        gap: 0;
    }

    .main-navigation .main-menu li {
        width: 100%;
    }

    .main-navigation .main-menu a {
        display: block;
        padding: 0.85rem 0.25rem;
        border-bottom: 1px solid var(--at-color-border);
        color: var(--at-color-text);
    }

    /* Sous-menu toujours déplié, en retrait */
    .main-menu .sub-menu {
        position: static;
        min-width: 0;
        padding: 0 0 0 var(--at-space-sm);
        background: transparent;
        border: 0;
        border-radius: 0;
        box-shadow: none;
        opacity: 1;
        visibility: visible;
        transform: none;
    }

    .main-menu .sub-menu a {
        white-space: normal;
        color: var(--at-color-text-muted);
    }

    /* Le petit chevron n'a plus de sens quand tout est déplié */
    .main-menu .menu-item-has-children > a::after {
        content: none;
    }
}

/* Texte « À propos » de l'accueil : centré, avec une largeur de ligne lisible */
.front-intro.container {
    max-width: 800px;
    text-align: center;
}

/* --------------------------------------------------------------------------
   Bouton « retour en haut »
   -------------------------------------------------------------------------- */
.back-to-top {
    position: fixed;
    right: 1.25rem;
    bottom: 1.25rem;
    z-index: 900; /* sous la bannière cookies (9999), qui garde la priorité */
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    background-color: var(--at-color-accent);
    color: var(--at-color-on-accent);
    border: 0;
    border-radius: 50%;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
    cursor: pointer;

    /* Caché par défaut : visibility retire aussi le bouton de l'ordre de
       tabulation tant qu'il est invisible. */
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity var(--at-transition), transform var(--at-transition),
                visibility var(--at-transition), background-color var(--at-transition);
}

.back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover,
.back-to-top:focus-visible {
    background-color: var(--at-color-accent-hover);
}

.back-to-top svg {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2.5;
    stroke-linecap: round;
    stroke-linejoin: round;
}

@media (prefers-reduced-motion: reduce) {
    .back-to-top {
        transition: none;
    }
}