/* ═══════════════════════════════════════════════════════════════════
   BASE.CSS — Layout, typography, navigation, footer, responsive
   Uses CSS custom properties from theme.css
   ═══════════════════════════════════════════════════════════════════ */

/* ── Reset ─────────────────────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font-body, 'Inter', system-ui, sans-serif);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text, #1e293b);
    background: var(--color-bg, #fff);
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary, #1b2a4a); text-decoration: none; transition: color var(--transition, 150ms ease); }
a:hover { color: var(--color-secondary, #0d9488); }
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading, 'Inter', system-ui, sans-serif);
    font-weight: var(--font-weight-heading, 700);
    line-height: 1.2;
    color: var(--color-text, #1e293b);
}
h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
ul, ol { list-style: none; }


/* ── Skip link ─────────────────────────────────────────────────── */

.skip-link {
    position: absolute; top: -100%; left: 1rem;
    background: var(--color-primary); color: #fff;
    padding: .5rem 1rem; border-radius: var(--radius, 8px);
    z-index: 9999;
}
.skip-link:focus { top: 1rem; }


/* ── Container ─────────────────────────────────────────────────── */

.container {
    width: 100%;
    max-width: var(--container-max, 1200px);
    margin: 0 auto;
    padding: 0 1.5rem;
}


/* ── Buttons ───────────────────────────────────────────────────── */

.btn {
    display: inline-flex; align-items: center; gap: .5rem;
    padding: .75rem 1.5rem;
    font-size: .95rem; font-weight: 600;
    border: none; border-radius: var(--radius, 8px);
    cursor: pointer; transition: all var(--transition, 150ms ease);
    text-decoration: none; line-height: 1.3;
}
.btn-primary {
    background: var(--color-primary); color: #fff;
}
.btn-primary:hover { opacity: .9; color: #fff; transform: translateY(-1px); }
.btn-secondary {
    background: transparent; color: var(--color-primary);
    border: 2px solid var(--color-primary);
}
.btn-secondary:hover { background: var(--color-primary); color: #fff; }
.btn-lg { padding: 1rem 2rem; font-size: 1.05rem; }


/* ── Header / Navigation ──────────────────────────────────────── */

.site-header {
    position: sticky; top: 0; z-index: 1000;
    background: rgba(255,255,255,.97);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-border, #e2e8f0);
}

.header-inner {
    display: flex; align-items: center; justify-content: space-between;
    height: 4.5rem;
}

.logo { display: flex; align-items: center; gap: .5rem; }
.logo-img { height: 2.5rem; width: auto; }
.logo-text {
    font-family: var(--font-heading); font-weight: 800;
    font-size: 1.25rem; color: var(--color-primary);
}

.nav-list { display: flex; align-items: center; gap: .25rem; }
/* Le « span » est l'entrée de tête d'un sous-menu, sans page propre :
   elle doit se présenter comme les autres entrées du menu. */
.nav-item > a,
.nav-item > span {
    display: block; padding: .5rem 1rem;
    font-size: .95rem; font-weight: 500;
    color: var(--color-text); border-radius: var(--radius);
    transition: background var(--transition);
}
.nav-item > a:hover { background: var(--color-surface, #f8fafc); color: var(--color-primary); }

.nav-cta { margin-left: 1rem; white-space: nowrap; }

/* Sélecteur de langue (partials/header.html). Cibles de 44 px (WCAG 2.2, 2.5.8) ; la langue
   courante est marquée par aria-current ET soulignée, pas par la seule couleur. Couleurs du
   thème (texte #1e293b sur fond blanc : 14.63:1 sur le thème par défaut). */
.lang-switch ul { display: flex; gap: .25rem; list-style: none; margin: 0 0 0 1rem; padding: 0; }
.lang-switch a {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 44px; min-height: 44px; padding: 0 .5rem;
    color: var(--color-text, #1e293b); font-weight: 600; border-radius: var(--radius, 8px);
}
.lang-switch a[aria-current="page"] { text-decoration: underline; text-underline-offset: .25em; }
.lang-switch a:focus-visible { outline: 2px solid var(--color-primary, #1b2a4a); outline-offset: 2px; }

/* Dropdown */
.has-dropdown { position: relative; }
.dropdown {
    position: absolute; top: 100%; left: 0;
    min-width: 220px; padding: .5rem 0;
    background: #fff; border-radius: var(--radius);
    box-shadow: var(--shadow-lg, 0 10px 25px rgba(0,0,0,.1));
    opacity: 0; visibility: hidden;
    transform: translateY(8px);
    transition: all var(--transition);
}
.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown {
    opacity: 1; visibility: visible; transform: translateY(0);
}
.dropdown-list li a {
    display: block; padding: .5rem 1.25rem;
    font-size: .9rem; color: var(--color-text);
}
.dropdown-list li a:hover { background: var(--color-surface); color: var(--color-primary); }

/* Hamburger */
.hamburger {
    display: none; background: none; border: none; cursor: pointer;
    width: 2.5rem; height: 2.5rem;
    flex-direction: column; justify-content: center; align-items: center; gap: 5px;
}
.hamburger span {
    display: block; width: 1.5rem; height: 2px;
    background: var(--color-text); transition: all .3s ease;
}
.hamburger[aria-expanded="true"] span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }


/* ── Breadcrumb ────────────────────────────────────────────────── */

.breadcrumb { padding: 1rem 0; }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: .25rem; align-items: center; font-size: .875rem; }
.breadcrumb li:not(:last-child)::after { content: '/'; margin-left: .5rem; color: var(--color-text-muted); }
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb span { color: var(--color-text); }


/* ── Page title ────────────────────────────────────────────────── */

.page-h1 { margin-bottom: 2rem; }


/* ── Section spacing ───────────────────────────────────────────── */

.section { padding: var(--section-py, 5rem) 0; }
.section:nth-child(even) { background: var(--color-surface, #f8fafc); }
.section-heading { text-align: center; margin-bottom: 1rem; }
.section-subtitle { text-align: center; color: var(--color-text-muted); margin-bottom: 3rem; max-width: 640px; margin-left: auto; margin-right: auto; }


/* ── Rich text ─────────────────────────────────────────────────── */

.rich-text p { margin-bottom: 1rem; }
.rich-text ul, .rich-text ol { margin: 1rem 0; padding-left: 1.5rem; }
.rich-text ul { list-style: disc; }
.rich-text ol { list-style: decimal; }
.rich-text li { margin-bottom: .5rem; }
.rich-text strong { font-weight: 600; }
.rich-text a { color: var(--color-secondary); text-decoration: underline; }
.rich-text h2 { margin: 2rem 0 1rem; }
.rich-text h3 { margin: 1.5rem 0 .75rem; }
.rich-text blockquote {
    border-left: 4px solid var(--color-primary);
    padding: 1rem 1.5rem; margin: 1.5rem 0;
    background: var(--color-surface); border-radius: 0 var(--radius) var(--radius) 0;
}


/* ── Flash messages ────────────────────────────────────────────── */

.flash {
    padding: .75rem 1.25rem; margin: 1rem 0;
    border-radius: var(--radius); font-size: .9rem;
}
.flash-success { background: #d1fae5; color: #065f46; }
.flash-error { background: #fee2e2; color: #991b1b; }


/* ── Footer ────────────────────────────────────────────────────── */

.site-footer {
    background: var(--color-text, #1e293b); color: #cbd5e1;
    padding: 4rem 0 2rem;
}
.site-footer a { color: #cbd5e1; }
.site-footer a:hover { color: #fff; }

.footer-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 3rem;
    margin-bottom: 3rem;
}
.footer-brand {
    flex: 2 1 280px;
}
.footer-column {
    flex: 1 1 150px;
}

.footer-logo {
    font-family: var(--font-heading); font-weight: 800;
    font-size: 1.25rem; color: #fff; display: block; margin-bottom: .75rem;
}
.footer-brand p { font-size: .9rem; line-height: 1.6; margin-bottom: 1rem; }

.social-links { display: flex; gap: .75rem; }
.social-links a {
    text-transform: capitalize; font-size: .85rem;
    padding: .25rem .5rem; border-radius: var(--radius);
    border: 1px solid #475569;
}
.social-links a:hover { border-color: #fff; color: #fff; }

.footer-column h4 { color: #fff; font-size: .85rem; text-transform: uppercase; letter-spacing: .05em; margin-bottom: 1rem; }
.footer-column ul li { margin-bottom: .5rem; }
.footer-column ul li a { font-size: .9rem; }

.footer-contact {
    display: flex; flex-wrap: wrap; gap: 2rem;
    padding: 1.5rem 0; border-top: 1px solid #334155;
    font-size: .9rem;
}
.footer-bottom {
    padding-top: 1.5rem; border-top: 1px solid #334155;
    font-size: .8rem; color: #64748b;
}


/* ── Scroll reveal ────────────────────────────────────────────── */

.section {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity .6s ease, transform .6s ease;
}
.section.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ── Header shrink on scroll ──────────────────────────────────── */

.site-header {
    transition: box-shadow var(--transition, 150ms ease);
}
.site-header.scrolled {
    box-shadow: 0 2px 16px rgba(0,0,0,.08);
}
.site-header.scrolled .header-inner {
    height: 3.5rem;
    transition: height .25s ease;
}


/* ── Responsive ────────────────────────────────────────────────── */

@media (max-width: 1024px) {
    .footer-brand { flex: 1 1 100%; }
}

@media (max-width: 768px) {
    .hamburger { display: flex; }
    .main-nav {
        position: fixed; top: 4.5rem; left: 0; right: 0; bottom: 0;
        background: #fff; padding: 2rem 1.5rem;
        transform: translateX(100%); transition: transform .3s ease;
        overflow-y: auto;
    }
    .main-nav.open { transform: translateX(0); }
    .nav-list { flex-direction: column; align-items: stretch; gap: 0; }
    .nav-item > a,
    .nav-item > span { padding: .75rem 0; font-size: 1.1rem; }
    .nav-cta { margin: 1.5rem 0 0; text-align: center; }

    .dropdown {
        position: static; box-shadow: none; opacity: 1; visibility: visible;
        transform: none; padding-left: 1rem;
    }

    .footer-grid { flex-direction: column; }
    .footer-contact { flex-direction: column; gap: .75rem; }
    .section { padding: 3rem 0; }
}

@media (max-width: 375px) {
    body { font-size: .9375rem; }
    .container { padding: 0 1rem; }
}


/* ── Reduced motion ────────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Texte réservé aux technologies d'assistance : lu, jamais affiché.
   « clip-path » plutôt que « display:none », qui le retirerait aussi de la
   restitution vocale. */
.sr-only {
    position: absolute; width: 1px; height: 1px;
    margin: -1px; padding: 0; overflow: hidden;
    clip-path: inset(50%); white-space: nowrap; border: 0;
}

/* ── Pagination des listings ──────────────────────────────────────────
   Cibles de 44 px minimum (WCAG 2.2 AA, critère 2.5.8), focus visible, et
   aucune information portée par la seule couleur : la page courante est
   marquée par aria-current en plus de son fond.

   Les couleurs viennent du thème du site, dont les contrastes sont vérifiés
   à la génération. Sur le thème par défaut : texte des liens 14.22:1,
   bordure 14.22:1, libellé de la page courante 14.22:1 sur son fond. */
.pagination {
    display: flex; align-items: center; justify-content: center;
    flex-wrap: wrap; gap: .5rem;
    margin-top: 3rem;
}
.pagination-numeros {
    display: flex; align-items: center; flex-wrap: wrap; gap: .5rem;
    list-style: none; margin: 0; padding: 0;
}
.pagination-lien {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 44px; min-height: 44px; padding: 0 .875rem;
    border: 1px solid var(--color-primary, #1b2a4a);
    border-radius: var(--radius, 8px);
    color: var(--color-primary, #1b2a4a);
    font-size: 1rem; line-height: 1;
}
a.pagination-lien:hover { background: var(--color-surface, #f8fafc); }
a.pagination-lien:focus-visible {
    outline: 2px solid var(--color-primary, #1b2a4a);
    outline-offset: 2px;
}
.pagination-courante {
    background: var(--color-primary, #1b2a4a);
    color: #fff;
    font-weight: 700;
}
.pagination-coupure {
    min-width: 1.5rem; text-align: center;
    color: var(--color-text, #1e293b);
}
@media (max-width: 480px) {
    /* Sur un téléphone, les libellés passent sous les numéros plutôt que de
       forcer un défilement horizontal. */
    .pagination { flex-direction: column; }
}