/* ============================================================
   DUN RAMONAGE-FUMISTERIE — layout.css
   Structures globales réutilisables : en-tête/navigation
   (avec menu responsive) et pied de page.
   ============================================================ */

/* ══════════ NAVIGATION ══════════ */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: var(--z-nav);
    padding: 26px 0;
    transition: all .4s;
}
/* État « collé » au défilement */
.nav.is-stuck {
    background: rgba(22, 17, 14, .92);
    backdrop-filter: blur(16px);
    padding: 16px 0;
    border-bottom: 1px solid var(--line);
}
.nav__in {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Marque / logo */
.brand { display: flex; align-items: center; gap: 13px; }
/* Logo image (icône recolorée claire) dans l'en-tête sombre. */
.brand__logo {
    height: 46px;
    width: auto;
    display: block;
    flex-shrink: 0;
}
.nav.is-stuck .brand__logo { height: 40px; }
.brand__mark {
    width: 44px; height: 44px;
    border: 1px solid var(--copper);
    display: grid; place-items: center;
    position: relative;
    flex-shrink: 0;
}
.brand__mark::after {
    content: '';
    position: absolute; inset: 5px;
    border: 1px solid rgba(193, 98, 46, .35);
}
.brand__mark span {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    color: var(--ember);
    font-weight: 500;
}
.brand__txt {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    letter-spacing: .02em;
    color: var(--bone);
    line-height: 1.1;
}
.brand__sub {
    display: block;
    font-family: var(--font-sans);
    font-size: .62rem;
    letter-spacing: .3em;
    text-transform: uppercase;
    color: var(--copper);
    margin-top: 2px;
}

/* Menu principal */
.nav__menu {
    display: flex;
    align-items: center;
    gap: 40px;
}
.nav__link {
    font-size: .82rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    font-weight: 400;
    color: var(--bone-dim);
    transition: color .3s;
    position: relative;
}
.nav__link:hover,
.nav__link.active { color: var(--ember); }
.nav__link.active::after {
    content: '';
    position: absolute;
    left: 0; bottom: -6px;
    width: 100%; height: 1px;
    background: var(--ember);
}

/* Bouton d'appel à l'action dans la nav */
.nav__cta {
    border: 1px solid var(--copper);
    color: var(--bone);
    padding: 12px 28px;
    font-size: .72rem;
    letter-spacing: .2em;
    text-transform: uppercase;
    transition: all var(--transition);
}
.nav__cta:hover { background: var(--ember); border-color: var(--ember); color: #fff; }

/* Sélecteur de langue */
.nav__lang {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-left: 4px;
}
.nav__lang-link {
    font-size: .72rem;
    letter-spacing: .1em;
    color: var(--bone-dim);
    padding: 4px 8px;
    border: 1px solid transparent;
    transition: all var(--transition);
}
.nav__lang-link:hover { color: var(--bone); }
.nav__lang-link.is-active {
    color: var(--ember);
    border-color: var(--line);
}

/* Bouton hamburger (mobile) */
.nav__toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px; height: 44px;
    background: none;
    border: 1px solid var(--line);
    padding: 0 11px;
}
.nav__toggle span {
    display: block;
    height: 1.5px;
    width: 100%;
    background: var(--bone);
    transition: transform .35s, opacity .35s;
}
.nav__toggle.is-active span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__toggle.is-active span:nth-child(2) { opacity: 0; }
.nav__toggle.is-active span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ══════════ FOOTER ══════════ */
.footer {
    background: var(--soot);
    padding: 90px 0 36px;
    border-top: 1px solid var(--line);
    margin-top: auto;
}
.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: 56px;
    margin-bottom: 70px;
}
.footer__brand-text {
    color: var(--bone-dim);
    font-size: .9rem;
    margin-top: 22px;
    max-width: 290px;
    font-weight: 300;
}
.footer__col h4 {
    font-family: var(--font-sans);
    font-size: .66rem;
    letter-spacing: .24em;
    text-transform: uppercase;
    color: var(--copper);
    margin-bottom: 22px;
    font-weight: 500;
}
.footer__col a {
    display: block;
    color: var(--bone-dim);
    font-size: .9rem;
    margin-bottom: 13px;
    font-weight: 300;
    transition: color .3s;
}
.footer__col a:hover { color: var(--ember-lt); }
.footer__bottom {
    border-top: 1px solid var(--line);
    padding-top: 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}
.footer__bottom p {
    color: var(--placeholder);
    font-size: .78rem;
    font-weight: 300;
    letter-spacing: .06em;
}

/* Conteneur principal des pages (pousse le footer en bas) */
.page-main { flex: 1 0 auto; }

/* ══════════ RESPONSIVE layout ══════════ */
@media (max-width: 1000px) {
    /* Menu devient un panneau plein écran */
    .nav__toggle { display: flex; }
    .nav__menu {
        position: fixed;
        top: 0; right: 0;
        height: 100vh;
        width: min(340px, 84vw);
        background: rgba(22, 17, 14, .98);
        backdrop-filter: blur(16px);
        border-left: 1px solid var(--line);
        flex-direction: column;
        align-items: flex-start;
        justify-content: center;
        gap: 30px;
        padding: 60px 44px;
        transform: translateX(100%);
        transition: transform .4s cubic-bezier(.2, .8, .2, 1);
    }
    .nav__menu.is-open { transform: translateX(0); }
    .nav__link { font-size: 1rem; }
    .nav__cta { align-self: stretch; text-align: center; }
    .nav__lang { align-self: center; margin: 8px 0 0; }

    /* Empêche le défilement de fond quand le menu est ouvert */
    body.menu-open { overflow: hidden; }

    .footer__grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 560px) {
    .footer__grid { grid-template-columns: 1fr; }
    .brand__txt { font-size: 1.3rem; }
    .fab { right: 20px; bottom: 20px; }
}