/* Socle : base, typographie, boutons, en-tête, pied, formulaires. */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; }
a { color: var(--primary); text-underline-offset: 2px; }
a:hover { color: var(--primary-dark); }
h1, h2, h3 { font-family: var(--font-serif); font-weight: 600; line-height: 1.2; color: var(--text); margin: 0 0 .5em; letter-spacing: -0.01em; }
h1 { font-size: clamp(1.9rem, 4.2vw, 2.9rem); }
h2 { font-size: clamp(1.45rem, 2.8vw, 2rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }
:focus-visible { outline: 3px solid var(--accent-light); outline-offset: 2px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.container { width: 100%; max-width: var(--container-max); margin: 0 auto; padding: 0 20px; }
.container--narrow { max-width: var(--container-narrow); }
main { min-height: 60vh; }

/* Boutons */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 20px; border-radius: var(--radius-md); border: 1.5px solid transparent;
    font: 600 15px/1.2 var(--font-sans); text-decoration: none; cursor: pointer;
    transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
    white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn[disabled], .btn.is-loading { opacity: .6; cursor: progress; }
.btn--primary, .btn-primary { background: var(--primary); color: #fff; }
.btn--primary:hover, .btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn--accent { background: var(--accent); color: #fff; }
.btn--accent:hover { background: var(--accent-dark); color: #fff; }
.btn--outline { background: transparent; border-color: var(--primary); color: var(--primary); }
.btn--outline:hover { background: var(--primary-bg); }
.btn--ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn--ghost:hover { border-color: var(--text-light); color: var(--text); }
.btn--sm { padding: 8px 14px; font-size: 14px; }
.btn--lg { padding: 15px 26px; font-size: 16px; }
.btn--block { display: flex; width: 100%; }
.lien { background: none; border: 0; padding: 0; color: var(--primary); font: inherit; text-decoration: underline; cursor: pointer; }

/* En-tête */
.site-header { background: var(--bg-white); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 50; }
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: var(--header-height); gap: 16px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); font-family: var(--font-serif); font-weight: 600; font-size: 18px; }
.logo svg { flex-shrink: 0; }
.main-nav { display: flex; align-items: center; gap: 22px; }
.nav-link { color: var(--text); text-decoration: none; font-size: 15px; }
.nav-link:hover { color: var(--primary); }
.nav-link--subtle { color: var(--text-muted); }
.mobile-menu-toggle { display: none; background: none; border: 0; padding: 10px; cursor: pointer; }
.mobile-menu-toggle span { display: block; width: 22px; height: 2px; background: var(--text); margin: 4px 0; }
.mobile-nav { display: none; }

/* Messages */
.flash-container { max-width: var(--container-max); margin: 12px auto 0; padding: 0 20px; }
.flash { padding: 12px 16px; border-radius: var(--radius-md); margin-bottom: 8px; font-size: 15px; border: 1px solid; }
.flash--success { background: var(--success-bg); border-color: #c5ddcc; color: var(--success); }
.flash--error { background: var(--error-bg); border-color: #ecc9c1; color: var(--error); }
.flash--info { background: var(--info-bg); border-color: #d3dbe8; color: var(--primary); }

/* Fil d'Ariane */
.breadcrumb { padding: 14px 0 0; font-size: 14px; color: var(--text-muted); }
.breadcrumb ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.breadcrumb li + li::before { content: "›"; margin-right: 6px; color: var(--text-light); }
.breadcrumb a { color: var(--text-muted); }

/* Formulaires */
label { font-size: 14px; font-weight: 600; color: var(--text); }
input[type=text], input[type=email], input[type=number], input[type=date], input[type=tel], select, textarea {
    width: 100%; padding: 10px 12px; border: 1.5px solid var(--border); border-radius: var(--radius-md);
    background: #fff; font: 15px/1.4 var(--font-sans); color: var(--text);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary-light); box-shadow: 0 0 0 3px rgba(31,58,95,.12); }
textarea { resize: vertical; min-height: 70px; }
.champ-aide, .form-hint { display: block; font-size: 13px; color: var(--text-muted); font-weight: 400; margin-top: 4px; }

/* Encadré consentement (L.221-28 13°) */
.consentement { margin: 14px 0 6px; }
.consentement-case { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; font-size: 14px; line-height: 1.45; cursor: pointer; }
.consentement-case input { margin-top: 3px; width: 18px; height: 18px; flex-shrink: 0; accent-color: var(--primary); }
.consentement-erreur { color: var(--error); font-size: 13px; margin: 6px 0 0; }

/* FAQ */
.faq details { border-bottom: 1px solid var(--border); padding: 4px 0; }
.faq summary { cursor: pointer; list-style: none; padding: 14px 32px 14px 0; font-weight: 600; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 10px; font-size: 22px; color: var(--primary); font-weight: 400; }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--text-muted); margin: 0 0 14px; }

/* Pied */
.site-footer { background: #1c2230; color: #c9ccd4; margin-top: 64px; padding: 48px 0 24px; font-size: 14px; }
.site-footer a { color: #e7e4dc; text-decoration: none; }
.site-footer a:hover { text-decoration: underline; color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 32px; }
.footer-col h4 { font-family: var(--font-serif); color: #fff; font-size: 16px; margin: 0 0 12px; font-weight: 600; }
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 7px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); margin-top: 32px; padding-top: 18px; color: #8f94a0; font-size: 13px; }
.trio { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 28px; }
.trio a { display: block; border: 1px solid rgba(255,255,255,.14); border-radius: var(--radius-md); padding: 12px 14px; }
.trio a:hover { border-color: rgba(255,255,255,.4); text-decoration: none; }
.trio strong { display: block; color: #fff; font-size: 14px; }
.trio span { color: #aeb2bc; font-size: 13px; }
.trio .trio-ici { border-style: dashed; }

/* Pages légales */
.legal-page, .legal-section { padding: 40px 0; }
.legal-content h2, .legal-section h2 { font-size: 1.25rem; margin-top: 1.6em; }
.legal-content, .legal-section .container { background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px; }

@media (max-width: 860px) {
    .main-nav { display: none; }
    .mobile-menu-toggle { display: block; }
    .mobile-nav.is-open { display: flex; flex-direction: column; background: var(--bg-white); border-bottom: 1px solid var(--border); padding: 8px 20px 14px; position: sticky; top: var(--header-height); z-index: 49; }
    .mobile-nav-link { padding: 12px 0; color: var(--text); text-decoration: none; border-bottom: 1px solid var(--border-light); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .trio { grid-template-columns: 1fr; }
    .legal-content, .legal-section .container { padding: 20px 16px; }
}
@media (max-width: 520px) {
    .container { padding: 0 16px; }
    .footer-grid { grid-template-columns: 1fr; }
    .logo span { font-size: 16px; }
}
@media print {
    .site-header, .site-footer, .no-print { display: none !important; }
}

/* Toast */
.toast { position: fixed; left: 50%; bottom: 22px; transform: translateX(-50%); z-index: 1000; background: #1c2230; color: #fff; padding: 12px 18px; border-radius: var(--radius-md); font-size: 14px; box-shadow: var(--shadow-lg); max-width: min(92vw, 520px); transition: opacity .4s; }
.toast--error { background: var(--error); }
.toast--success { background: var(--success); }
.toast.is-out { opacity: 0; }
.flash { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; }
.flash-close { background: none; border: 0; font-size: 20px; line-height: 1; cursor: pointer; color: inherit; opacity: .6; }

/* Aimant : modèle vierge contre e-mail */
.aimant { background: var(--bg-white); border: 1px solid var(--border); border-left: 4px solid var(--accent); border-radius: var(--radius-lg); padding: 22px 24px; margin: 28px 0; }
.aimant h2, .aimant h3 { margin-top: 0; }
.aimant-form { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 10px; }
.aimant-form input[type=email] { flex: 1 1 240px; }
.aimant-form select { flex: 0 0 150px; }
.aimant-msg { font-size: 14px; margin: 10px 0 0; }
.aimant-msg--ok { color: var(--success); }
.aimant-msg--err { color: var(--error); }
.piege { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.surtitre { font-size: 13px; letter-spacing: .06em; text-transform: uppercase; color: var(--accent-dark); font-weight: 600; margin-bottom: 14px; }