/* =========================================================================
   Landing « Atelier éditorial chaleureux » — concept original /landing-forest
   Palette ancrée sur le vert forêt du logo (#144017) + accent terracotta.
   Tout est préfixé .lf-* pour éviter toute collision avec les autres pages.
   ========================================================================= */

.lf {
    --lf-forest: #144017;
    --lf-forest-deep: #0e2a11;
    --lf-forest-soft: #1f5a26;
    --lf-ivory: #f7f3ea;
    --lf-sand: #ede4d3;
    --lf-cream: #fffdf7;
    --lf-terracotta: #c9742e;
    --lf-terracotta-deep: #a85b1e;
    --lf-gold: #c9a24b;
    --lf-gold-soft: #dcba6a;
    --lf-on-green: #f3efe4;
    --lf-ink: #1a261a;
    --lf-muted: #5b6b58;

    --lf-serif: 'Fraunces', Georgia, 'Times New Roman', serif;
    --lf-sans: 'Palanquin', system-ui, -apple-system, sans-serif;

    font-family: var(--lf-sans);
    color: var(--lf-ink);
    background-color: var(--lf-ivory);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

/* ----- Typographie ----------------------------------------------------- */
.lf-display {
    font-family: var(--lf-serif);
    font-optical-sizing: auto;
    font-weight: 400;
    letter-spacing: -0.01em;
    line-height: 1.02;
}

.lf-serif {
    font-family: var(--lf-serif);
}

.lf-eyebrow {
    font-family: var(--lf-sans);
    text-transform: uppercase;
    letter-spacing: 0.28em;
    font-weight: 500;
    font-size: 0.72rem;
}

/* Petit trait décoratif terracotta */
.lf-tick {
    display: inline-block;
    width: 1.75rem;
    height: 1px;
    background: var(--lf-terracotta);
    vertical-align: middle;
}

/* ----- Grain papier (texture chaleureuse) ------------------------------ */
.lf-grain::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    opacity: 0.4;
    mix-blend-mode: multiply;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 240 240' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
    background-size: 200px 200px;
}

/* ----- Horizon photo (Dents du Midi) — présence subtile ---------------- */
.lf-hero-photo {
    position: absolute;
    inset: auto 0 0 0;
    height: 62%;
    z-index: 0;
    pointer-events: none;
    background-image: url('https://images.unsplash.com/photo-1760867191563-791f803e1bcd?q=90&w=2000');
    background-size: cover;
    background-position: center 35%;
    opacity: 0.18;
    -webkit-mask-image: linear-gradient(to top, #000 0%, #000 18%, transparent 92%);
    mask-image: linear-gradient(to top, #000 0%, #000 18%, transparent 92%);
}

/* Sur fond vert : la photo se fond en lumière (les sommets ambrés rougeoient) */
.lf-green .lf-hero-photo {
    opacity: 0.30;
    mix-blend-mode: screen;
}

/* ----- Panneau vert signature (dégradé + halo or) ---------------------- */
.lf-green {
    position: relative;
    background-color: #0e2a11;
    background-image:
        radial-gradient(115% 80% at 50% -12%, rgba(38,100,45,0.70) 0%, rgba(14,42,17,0) 60%),
        radial-gradient(95% 75% at 88% 112%, rgba(20,64,23,0.75) 0%, rgba(14,42,17,0) 55%);
    color: var(--lf-on-green);
}

/* Variante « fondation » : vert plus sombre et plat (footer) — évite la
   collision de deux dégradés verts et crée une hiérarchie claire. */
.lf-green-deep {
    position: relative;
    background-color: #07210b;
    background-image: radial-gradient(120% 100% at 50% 130%, rgba(20, 64, 23, 0.5) 0%, rgba(7, 33, 11, 0) 62%);
    color: var(--lf-on-green);
}

/* Filet doré horizontal (séparateur net entre deux panneaux verts) */
.lf-gold-rule {
    height: 1px;
    width: 100%;
    background: linear-gradient(90deg, transparent, rgba(201, 162, 75, 0.55), transparent);
}

/* Motif de points doré (overlay subtil, comme le fond de marque) */
.lf-dots::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image: radial-gradient(rgba(201, 162, 75, 0.22) 1px, transparent 1.6px);
    background-size: 24px 24px;
    opacity: 0.55;
}

/* Logo en filigrane sur les cartes produits (grand, débordant en bas à droite) */
.lf-card-watermark {
    position: absolute;
    right: -1.25rem;
    bottom: -1.75rem;
    width: 10.5rem;
    height: auto;
    opacity: 0.06;
    z-index: 0;
    pointer-events: none;
}

.lf-card-watermark--dark {
    border-radius: 0.75rem;
    opacity: 0.05;
}

/* Filets dorés verticaux décoratifs (rappel du fond de marque) */
.lf-goldline {
    width: 1px;
    background: linear-gradient(to bottom, transparent, rgba(201, 162, 75, 0.55), transparent);
}

/* ----- Boutons --------------------------------------------------------- */
.lf-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.95rem 2rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    border-radius: 999px;
    transition: transform 0.3s ease, background-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
    will-change: transform;
}

.lf-btn-primary {
    background: var(--lf-forest);
    color: var(--lf-cream);
    box-shadow: 0 12px 30px -12px rgba(20, 64, 23, 0.6);
}

.lf-btn-primary:hover {
    background: var(--lf-forest-deep);
    transform: translateY(-2px);
}

.lf-btn-accent {
    background: var(--lf-terracotta);
    color: var(--lf-cream);
    box-shadow: 0 12px 30px -12px rgba(201, 116, 46, 0.65);
}

.lf-btn-accent:hover {
    background: var(--lf-terracotta-deep);
    transform: translateY(-2px);
}

.lf-btn-ghost {
    background: transparent;
    color: var(--lf-forest);
    border: 1px solid rgba(20, 64, 23, 0.25);
}

.lf-btn-ghost:hover {
    border-color: var(--lf-forest);
    transform: translateY(-2px);
}

.lf-btn-gold {
    background: var(--lf-gold);
    color: #14260f;
    box-shadow: 0 12px 30px -12px rgba(201, 162, 75, 0.55);
}

.lf-btn-gold:hover {
    background: var(--lf-gold-soft);
    transform: translateY(-2px);
}

.lf-btn-ghost-light {
    background: transparent;
    color: var(--lf-on-green);
    border: 1px solid rgba(243, 239, 228, 0.35);
}

.lf-btn-ghost-light:hover {
    border-color: var(--lf-on-green);
    transform: translateY(-2px);
}

/* Lien souligné animé */
.lf-link {
    position: relative;
    color: var(--lf-forest);
    font-weight: 500;
}

.lf-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -3px;
    width: 100%;
    height: 1px;
    background: var(--lf-terracotta);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.35s ease;
}

.lf-link:hover::after {
    transform: scaleX(1);
}

/* ----- Navbar ---------------------------------------------------------- */
.lf-nav {
    color: var(--lf-on-green);
    transition: background-color 0.4s ease, box-shadow 0.4s ease, padding 0.4s ease, backdrop-filter 0.4s ease, color 0.4s ease;
}

.lf-nav.is-scrolled {
    color: var(--lf-forest);
    background: rgba(247, 243, 234, 0.85);
    backdrop-filter: blur(14px);
    box-shadow: 0 1px 0 rgba(20, 64, 23, 0.08), 0 10px 30px -20px rgba(20, 64, 23, 0.4);
}

/* Logo : éclairci sur fond vert, original sur fond ivoire */
.lf-nav-logo {
    filter: brightness(0) invert(1);
    opacity: 0.92;
    transition: filter 0.4s ease, opacity 0.4s ease;
}

.lf-nav.is-scrolled .lf-nav-logo {
    filter: none;
    opacity: 1;
}

.lf-nav-link {
    position: relative;
    font-size: 0.82rem;
    letter-spacing: 0.06em;
    color: currentColor;
    opacity: 0.82;
    transition: opacity 0.25s ease;
}

.lf-nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 100%;
    height: 1px;
    background: var(--lf-gold);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.lf-nav.is-scrolled .lf-nav-link::after {
    background: var(--lf-terracotta);
}

.lf-nav-link:hover {
    opacity: 1;
}

.lf-nav-link:hover::after {
    transform: scaleX(1);
}

/* Menu mobile — overlay plein écran (toggle via Stimulus) */
.lf-mobile-overlay {
    position: fixed;
    inset: 0;
    z-index: 60;
    display: flex;
    flex-direction: column;
    background-color: #07210b;
    background-image: radial-gradient(120% 80% at 50% 0%, rgba(31, 90, 38, 0.6) 0%, rgba(7, 33, 11, 0) 62%);
    color: var(--lf-on-green);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.35s ease, visibility 0.35s ease;
}

.lf-mobile-overlay.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

/* Logo dans l'overlay mobile : toujours clair (fond vert), indépendant du scroll */
.lf-mobile-logo {
    filter: brightness(0) invert(1);
    opacity: 0.92;
}

.lf-mobile-nav {
    position: relative;
    z-index: 10;
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.6rem;
    padding: 1rem 1.5rem 4rem;
    text-align: center;
}

.lf-mobile-nav a:not(.lf-btn) {
    font-family: var(--lf-serif);
    font-size: clamp(1.6rem, 7vw, 2.25rem);
    line-height: 1;
    letter-spacing: -0.01em;
    color: var(--lf-on-green);
    white-space: nowrap;
    transition: color 0.2s ease;
}

.lf-mobile-nav a:not(.lf-btn):hover,
.lf-mobile-nav a:not(.lf-btn):focus-visible,
.lf-mobile-nav a:not(.lf-btn):active {
    color: var(--lf-gold);
}

/* ----- Scroll reveal --------------------------------------------------- */
.lf-reveal {
    opacity: 0;
    transform: translateY(34px);
    transition: opacity 0.9s ease, transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}

.lf-reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Délais en cascade */
.lf-reveal-d1 { transition-delay: 0.08s; }
.lf-reveal-d2 { transition-delay: 0.16s; }
.lf-reveal-d3 { transition-delay: 0.24s; }
.lf-reveal-d4 { transition-delay: 0.32s; }

/* ----- Liste éditoriale des expertises -------------------------------- */
.lf-cap {
    border-top: 1px solid rgba(20, 64, 23, 0.14);
    transition: background-color 0.4s ease, padding 0.4s ease;
}

.lf-cap:last-child {
    border-bottom: 1px solid rgba(20, 64, 23, 0.14);
}

.lf-cap-num {
    font-family: var(--lf-serif);
    color: var(--lf-terracotta);
    font-weight: 400;
}

.lf-cap-title {
    font-family: var(--lf-serif);
    color: var(--lf-forest);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), color 0.4s ease;
}

.lf-cap-arrow {
    color: var(--lf-terracotta);
    opacity: 0;
    transform: translateX(-12px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.lf-cap:hover {
    background: linear-gradient(90deg, rgba(201, 116, 46, 0.06), transparent 60%);
}

.lf-cap:hover .lf-cap-title {
    transform: translateX(14px);
}

.lf-cap:hover .lf-cap-arrow {
    opacity: 1;
    transform: translateX(0);
}

/* ----- Cartes (réalisations, presse) ----------------------------------- */
.lf-card {
    background: var(--lf-cream);
    border: 1px solid rgba(20, 64, 23, 0.1);
    border-radius: 1.25rem;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease, border-color 0.4s ease;
}

.lf-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 30px 50px -30px rgba(20, 64, 23, 0.45);
    border-color: rgba(201, 116, 46, 0.4);
}

/* ----- Marquee logos clients ------------------------------------------- */
.lf-marquee {
    overflow: hidden;
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
    mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.lf-marquee-track {
    display: flex;
    align-items: center;
    gap: 4.5rem;
    width: max-content;
    animation: lf-scroll 55s linear infinite;
}

.lf-marquee:hover .lf-marquee-track {
    animation-play-state: paused;
}

.lf-marquee-track img {
    height: 2.6rem;
    width: auto;
    object-fit: contain;
    opacity: 0.55;
    filter: grayscale(100%);
    transition: opacity 0.3s ease, filter 0.3s ease;
}

.lf-marquee-track img:hover {
    opacity: 1;
    filter: grayscale(0%);
}

@keyframes lf-scroll {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

/* ----- Témoignages (pull-quotes) --------------------------------------- */
.lf-quote {
    position: relative;
    background: var(--lf-cream);
    border: 1px solid rgba(20, 64, 23, 0.1);
    border-radius: 1.5rem;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.lf-quote:hover {
    transform: translateY(-5px);
    box-shadow: 0 30px 50px -30px rgba(20, 64, 23, 0.4);
}

.lf-quote-mark {
    font-family: var(--lf-serif);
    font-size: 4.5rem;
    line-height: 0.6;
    color: var(--lf-terracotta);
    opacity: 0.45;
}

.lf-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    border-radius: 999px;
    background: var(--lf-forest);
    color: var(--lf-cream);
    font-family: var(--lf-serif);
    font-size: 1.05rem;
    flex-shrink: 0;
}

/* ----- Avatars « média » presse ---------------------------------------- */
.lf-media-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 0.75rem;
    background: var(--lf-sand);
    color: var(--lf-forest);
    font-family: var(--lf-serif);
    font-size: 1.1rem;
    flex-shrink: 0;
}

/* ----- Bandeau chiffres clés ------------------------------------------- */
.lf-stat-num {
    font-family: var(--lf-serif);
    line-height: 1;
}

/* ----- Formulaire (thème dédié) ---------------------------------------- */
.lf-field input,
.lf-field textarea {
    width: 100%;
    padding: 0.85rem 0;
    background: transparent;
    border: 0;
    border-bottom: 1px solid rgba(20, 64, 23, 0.25);
    color: var(--lf-ink);
    font-size: 1.05rem;
    font-weight: 300;
    transition: border-color 0.3s ease;
    border-radius: 0;
}

.lf-field input:focus,
.lf-field textarea:focus {
    outline: none;
    border-color: var(--lf-terracotta);
    box-shadow: none;
}

.lf-field input::placeholder,
.lf-field textarea::placeholder {
    color: rgba(91, 107, 88, 0.55);
}

.lf-field label {
    display: block;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--lf-muted);
    margin-bottom: 0.5rem;
}

.lf-field textarea {
    resize: none;
}

/* ----- Accessibilité : mouvement réduit -------------------------------- */
@media (prefers-reduced-motion: reduce) {
    .lf-reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .lf-marquee-track {
        animation: none;
    }

    .lf *,
    .lf *::before,
    .lf *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}