/* ═══════════════════════════════════════════════════════════════
   EcoSens Team — Theme CSS
   Palette Bauhaus · Identité ECOSENS
   ═══════════════════════════════════════════════════════════════ */

/* ── Variables ──────────────────────────────────────────────── */
:root {
    --bleu-nuit: #061E30;
    --turquoise: #00A3AD;
    --vert-profond: #285B39;
    --vert-clair: #A3CC2B;
    --orange: #FF6415;
    --blanc: #FFFFFF;
    --gris-clair: #F3F7F7;
    --gris-moyen: #E0E7E7;
    --gris-texte: #4A5B5E;
    --texte: #1A2B2E;

    --font-main: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    --container-max: 1200px;
    --container-narrow: 800px;
    --gap: 2rem;
    --gap-sm: 1rem;
    --radius: 8px;
    --radius-lg: 16px;
    --shadow: 0 2px 12px rgba(6,30,48,0.08);
    --shadow-lg: 0 8px 32px rgba(6,30,48,0.12);
    --transition: 0.25s ease;

    --header-height: 72px;
}

/* ── Reset & Base ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
    font-size: 17px;
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-height) + 1rem);
}

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

body {
    font-family: var(--font-main);
    color: var(--texte);
    background: var(--blanc);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--turquoise); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--bleu-nuit); }

h1, h2, h3, h4 { color: var(--bleu-nuit); line-height: 1.25; font-weight: 700; }
h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); margin-bottom: 1rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }

p { margin-bottom: 1rem; max-width: 72ch; }

.screen-reader-text {
    position: absolute; width: 1px; height: 1px;
    padding: 0; margin: -1px; overflow: hidden;
    clip: rect(0,0,0,0); border: 0;
}
.screen-reader-text:focus {
    position: fixed; top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: auto; height: auto;
    padding: 1rem 2rem; margin: 0;
    background: var(--blanc); color: var(--bleu-nuit);
    font-size: 1rem; z-index: 9999;
    clip: auto; border: 2px solid var(--turquoise);
}

/* ── Layout ─────────────────────────────────────────────────── */
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 1.5rem; }
.container-narrow { max-width: var(--container-narrow); }

section { padding: 5rem 0; }
section:nth-child(even) { background: var(--gris-clair); }

/* ── Header ─────────────────────────────────────────────────── */
.site-header {
    position: sticky; top: 0; z-index: 100;
    background: var(--bleu-nuit);
    height: var(--header-height);
    display: flex; align-items: center;
}

.header-inner {
    display: flex; align-items: center; justify-content: space-between;
    width: 100%;
}

.site-logo {
    display: flex; align-items: center; gap: 0.5rem;
    color: var(--blanc); font-weight: 800; font-size: 1.25rem;
    letter-spacing: 0.05em; text-transform: uppercase;
}
.site-logo:hover { color: var(--turquoise); }
.site-logo img { height: 40px; width: auto; }
.logo-text { color: var(--blanc); }

/* ── Navigation ─────────────────────────────────────────────── */
.nav-list {
    list-style: none; display: flex; gap: 0.25rem;
    align-items: center;
}
.nav-list li { position: relative; }
.nav-list a {
    display: block; padding: 0.5rem 0.75rem;
    color: rgba(255,255,255,0.85); font-size: 0.875rem;
    font-weight: 500; border-radius: var(--radius);
    transition: background var(--transition), color var(--transition);
}
.nav-list a:hover,
.nav-list .current-menu-item a {
    background: rgba(255,255,255,0.1); color: var(--blanc);
}

.menu-item-has-children > a::after { content: ' ▾'; font-size: 0.65em; opacity: 0.6; }

.sub-menu {
    display: none; position: absolute; top: 100%; left: 0;
    background: var(--blanc); border-radius: var(--radius);
    box-shadow: var(--shadow-lg); min-width: 220px;
    padding: 0.5rem 0; z-index: 200;
    list-style: none;
}
.menu-item-has-children:hover > .sub-menu,
.menu-item-has-children:focus-within > .sub-menu { display: block; }
.sub-menu a { color: var(--texte); padding: 0.5rem 1rem; font-size: 0.85rem; border-radius: 0; }
.sub-menu a:hover { background: var(--gris-clair); color: var(--bleu-nuit); }

/* ── Hamburger Mobile ───────────────────────────────────────── */
.menu-toggle {
    display: none; background: none; border: none; cursor: pointer;
    padding: 0.5rem; z-index: 150;
}
.hamburger-line {
    display: block; width: 24px; height: 2px; margin: 5px 0;
    background: var(--blanc); border-radius: 2px;
    transition: transform var(--transition), opacity var(--transition);
}

@media (max-width: 900px) {
    .menu-toggle { display: block; }
    .primary-nav {
        position: fixed; top: var(--header-height); right: -100%;
        width: 85%; max-width: 360px; height: calc(100vh - var(--header-height));
        background: var(--bleu-nuit); padding: 2rem;
        transition: right var(--transition); overflow-y: auto;
        z-index: 150;
    }
    .primary-nav.is-open { right: 0; }
    .nav-list { flex-direction: column; gap: 0; }
    .nav-list a { padding: 0.75rem 0; font-size: 1rem; border-bottom: 1px solid rgba(255,255,255,0.1); }
    .sub-menu { position: static; box-shadow: none; background: rgba(255,255,255,0.05); padding-left: 1rem; }
    .sub-menu a { color: rgba(255,255,255,0.7); }
}

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
    display: inline-block; padding: 0.75rem 1.5rem;
    font-size: 0.95rem; font-weight: 600; border-radius: var(--radius);
    cursor: pointer; border: 2px solid transparent;
    transition: all var(--transition); text-align: center;
}
.btn-primary {
    background: var(--turquoise); color: var(--blanc); border-color: var(--turquoise);
}
.btn-primary:hover { background: #008c94; border-color: #008c94; color: var(--blanc); }
.btn-outline {
    background: transparent; color: var(--bleu-nuit); border-color: var(--bleu-nuit);
}
.btn-outline:hover { background: var(--bleu-nuit); color: var(--blanc); }
.btn-sm { padding: 0.5rem 1rem; font-size: 0.85rem; }

/* ── Surtitre ───────────────────────────────────────────────── */
.surtitre {
    display: inline-block; font-size: 0.8rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.15em;
    color: var(--turquoise); margin-bottom: 0.75rem;
}

/* ── Séquence 1 : Accueil ──────────────────────────────────── */
.seq-accueil {
    background: linear-gradient(135deg, var(--bleu-nuit) 0%, #0a2d45 100%);
    color: var(--blanc); padding: 6rem 0 5rem; min-height: 80vh;
    display: flex; align-items: center;
}
.seq-accueil h1 { color: var(--blanc); margin-bottom: 1.5rem; max-width: 600px; }
.seq-accueil .surtitre { color: var(--turquoise); }
.accueil-intro { font-size: 1.1rem; color: rgba(255,255,255,0.85); max-width: 560px; }
.accueil-reperes {
    display: flex; gap: 0.5rem; align-items: center;
    margin: 1.5rem 0 2rem; font-size: 0.9rem; font-weight: 600;
    color: var(--vert-clair); flex-wrap: wrap;
}
.accueil-reperes .sep { opacity: 0.4; }
.accueil-actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.accueil-actions .btn-primary { background: var(--turquoise); }
.accueil-actions .btn-outline { color: var(--blanc); border-color: rgba(255,255,255,0.4); }
.accueil-actions .btn-outline:hover { background: rgba(255,255,255,0.1); border-color: var(--blanc); }

.accueil-content { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }

.schema-flow {
    display: flex; align-items: center; gap: 0.5rem;
    flex-wrap: wrap; justify-content: center;
}
.flow-step {
    text-align: center; padding: 1.5rem 1rem;
    background: rgba(255,255,255,0.05); border-radius: var(--radius-lg);
    border: 1px solid rgba(255,255,255,0.1);
    min-width: 140px; transition: background var(--transition);
    cursor: default;
}
.flow-step:hover { background: rgba(255,255,255,0.1); }
.flow-icon { color: var(--turquoise); margin-bottom: 0.75rem; }
.flow-label { display: block; font-weight: 700; font-size: 0.95rem; color: var(--blanc); margin-bottom: 0.5rem; }
.flow-desc {
    font-size: 0.78rem; color: rgba(255,255,255,0.65);
    display: none; max-width: 180px; margin: 0 auto;
}
.flow-step.expanded .flow-desc { display: block; }
.flow-arrow { color: var(--turquoise); font-size: 1.5rem; font-weight: 700; }

@media (max-width: 900px) {
    .accueil-content { grid-template-columns: 1fr; gap: 2rem; }
    .schema-flow { flex-direction: column; }
    .flow-arrow { transform: rotate(90deg); }
    .seq-accueil { min-height: auto; padding: 4rem 0; }
}

/* ── Séquence 2 : Expertises ────────────────────────────────── */
.seq-expertises { background: var(--gris-clair); }
.expertise-tabs {
    display: flex; gap: 0.5rem; margin-bottom: 2rem; flex-wrap: wrap;
}
.exp-tab {
    padding: 0.75rem 1.25rem; border: 2px solid var(--gris-moyen);
    background: var(--blanc); border-radius: var(--radius);
    font-size: 0.9rem; font-weight: 600; cursor: pointer;
    color: var(--gris-texte); transition: all var(--transition);
    font-family: var(--font-main);
}
.exp-tab:hover { border-color: var(--turquoise); color: var(--bleu-nuit); }
.exp-tab.active { background: var(--turquoise); color: var(--blanc); border-color: var(--turquoise); }
.expertise-panels { min-height: 200px; }
.exp-panel { display: none; animation: fadeIn 0.3s ease; }
.exp-panel.active { display: block; }
.exp-panel p { font-size: 1.05rem; max-width: 60ch; }
.ref-link { display: block; margin: 0.75rem 0; font-weight: 600; }
.exp-panel .btn { margin-top: 1rem; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* ── Séquence 3 : Méthode OTR² ─────────────────────────────── */
.seq-methode { background: var(--blanc); }
.methode-header { text-align: center; margin-bottom: 3rem; }
.methode-subtitle { font-size: 1.1rem; color: var(--gris-texte); }
.methode-def { color: var(--turquoise); font-size: 0.95rem; }

.methode-frise {
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}
.frise-step {
    background: var(--gris-clair); border-radius: var(--radius-lg);
    padding: 2rem 1.5rem; position: relative;
    border: 2px solid transparent;
    transition: border-color var(--transition);
}
.frise-step:hover { border-color: var(--turquoise); }
.frise-num {
    font-size: 2rem; font-weight: 800; color: var(--turquoise);
    opacity: 0.3; margin-bottom: 0.5rem;
}
.frise-step h3 { margin-bottom: 0.5rem; }
.frise-visible { font-size: 0.95rem; color: var(--gris-texte); }
.frise-detail {
    display: none; margin-top: 1rem; padding-top: 1rem;
    border-top: 1px solid var(--gris-moyen);
    font-size: 0.9rem;
}
.frise-step.expanded .frise-detail { display: block; }
.frise-toggle {
    position: absolute; top: 1rem; right: 1rem;
    width: 32px; height: 32px; border-radius: 50%;
    border: 2px solid var(--gris-moyen); background: var(--blanc);
    font-size: 1.2rem; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: all var(--transition); font-family: var(--font-main);
    color: var(--bleu-nuit);
}
.frise-toggle:hover { border-color: var(--turquoise); color: var(--turquoise); }
.frise-step.expanded .frise-toggle { background: var(--turquoise); color: var(--blanc); border-color: var(--turquoise); }

@media (max-width: 900px) {
    .methode-frise { grid-template-columns: 1fr; }
}

/* ── Séquence 4 : Offres ───────────────────────────────────── */
.seq-offres { background: var(--gris-clair); }
.offres-grid {
    display: grid; grid-template-columns: repeat(2, 1fr);
    gap: 2rem; margin-top: 2rem;
}
.offre-card {
    background: var(--blanc); border-radius: var(--radius-lg);
    padding: 2.5rem 2rem; box-shadow: var(--shadow);
    display: flex; flex-direction: column;
}
.offre-card h3 { margin-bottom: 1rem; font-size: 1.3rem; }
.offre-resultat { font-size: 0.95rem; margin-bottom: 1.5rem; }
.accordion-toggle {
    background: none; border: none; color: var(--turquoise);
    font-weight: 600; cursor: pointer; padding: 0.5rem 0;
    font-size: 0.9rem; font-family: var(--font-main);
}
.accordion-content { display: none; margin-top: 1rem; }
.accordion-content.open { display: block; }
.accordion-content ul { padding-left: 1.25rem; }
.accordion-content li { margin-bottom: 0.5rem; font-size: 0.9rem; }
.offre-card .btn { margin-top: auto; align-self: flex-start; }

@media (max-width: 768px) {
    .offres-grid { grid-template-columns: 1fr; }
}

/* ── Séquence 5 : Références ───────────────────────────────── */
.seq-references { background: var(--blanc); }
.ref-featured { margin-bottom: 2rem; }
.ref-card-main {
    background: linear-gradient(135deg, var(--bleu-nuit), #0a2d45);
    color: var(--blanc); border-radius: var(--radius-lg);
    padding: 3rem; position: relative; overflow: hidden;
}
.ref-card-main h3 { color: var(--blanc); font-size: 1.5rem; }
.ref-card-main p { color: rgba(255,255,255,0.85); }
.ref-card-main .btn-outline { color: var(--blanc); border-color: rgba(255,255,255,0.4); }
.ref-card-main .btn-outline:hover { background: rgba(255,255,255,0.1); }

.ref-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}
.ref-card {
    background: var(--gris-clair); border-radius: var(--radius);
    padding: 1.5rem; transition: box-shadow var(--transition);
}
.ref-card:hover { box-shadow: var(--shadow); }
.ref-card h4 { margin-bottom: 0.5rem; }
.ref-card p { font-size: 0.9rem; margin-bottom: 0.75rem; }
.ref-card a { font-weight: 600; font-size: 0.85rem; }
.ref-cta { text-align: center; margin-top: 2.5rem; }

@media (max-width: 900px) {
    .ref-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
    .ref-grid { grid-template-columns: 1fr; }
}

/* ── Badges ─────────────────────────────────────────────────── */
.ref-badge {
    display: inline-block; padding: 0.25rem 0.75rem;
    border-radius: 100px; font-size: 0.75rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}
.badge-industrie { background: #E8F4F8; color: #0A6E8A; }
.badge-logistique { background: #FFF3E0; color: #E65100; }
.badge-environnement { background: #E8F5E9; color: #2E7D32; }
.badge-amenagement { background: #F3E5F5; color: #7B1FA2; }
.badge-cooperation { background: #FFF8E1; color: #F57F17; }
.badge-default { background: var(--gris-moyen); color: var(--gris-texte); }

.ref-statut {
    display: inline-block; padding: 0.2rem 0.6rem;
    border-radius: 4px; font-size: 0.75rem; font-weight: 600;
}
.statut-prefiguration { background: #FFF3E0; color: #E65100; }
.statut-en_cours { background: #E8F5E9; color: #2E7D32; }
.statut-terminee { background: var(--gris-moyen); color: var(--gris-texte); }

/* ── Séquence 6 : Équipe ───────────────────────────────────── */
.seq-equipe { background: var(--gris-clair); }
.equipe-intro { max-width: 60ch; margin-bottom: 2.5rem; }
.equipe-grid {
    display: grid; grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}
.equipe-card {
    background: var(--blanc); border-radius: var(--radius-lg);
    padding: 2rem; box-shadow: var(--shadow); text-align: center;
}
.equipe-portrait { margin-bottom: 1.5rem; }
.portrait-placeholder {
    width: 120px; height: 120px; border-radius: 50%;
    background: linear-gradient(135deg, var(--turquoise), var(--vert-profond));
    color: var(--blanc); display: flex; align-items: center; justify-content: center;
    font-size: 2rem; font-weight: 800; margin: 0 auto;
}
.equipe-card h3 { margin-bottom: 0.25rem; }
.equipe-role {
    display: block; color: var(--turquoise); font-weight: 600;
    font-size: 0.9rem; margin-bottom: 1rem;
}
.equipe-contact { margin: 1rem 0; display: flex; flex-direction: column; gap: 0.25rem; }
.equipe-contact a { font-size: 0.85rem; }
.equipe-signature {
    text-align: center; font-style: italic; color: var(--gris-texte);
    margin-top: 2rem; font-size: 1.05rem;
}

@media (max-width: 768px) {
    .equipe-grid { grid-template-columns: 1fr; }
}

/* ── Séquence 7 : Contact ──────────────────────────────────── */
.seq-contact { background: var(--blanc); }
.contact-grid {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 4rem; align-items: start;
}
.contact-directs { margin: 2rem 0; }
.contact-person { margin-bottom: 1.5rem; }
.contact-person strong { display: block; margin-bottom: 0.25rem; }
.contact-person a { display: block; font-size: 0.9rem; margin-bottom: 0.15rem; }

.contact-form { margin-top: 0; }
.form-group { margin-bottom: 1.25rem; }
.form-group label {
    display: block; font-weight: 600; margin-bottom: 0.4rem;
    font-size: 0.9rem; color: var(--bleu-nuit);
}
.required { color: var(--orange); }
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%; padding: 0.75rem 1rem;
    border: 2px solid var(--gris-moyen); border-radius: var(--radius);
    font-size: 1rem; font-family: var(--font-main);
    transition: border-color var(--transition);
    background: var(--blanc); color: var(--texte);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none; border-color: var(--turquoise);
}
.form-group input.error,
.form-group textarea.error { border-color: var(--orange); }
.form-error {
    display: block; color: var(--orange); font-size: 0.8rem;
    margin-top: 0.3rem; min-height: 1.2rem;
}
.form-help { display: block; font-size: 0.8rem; color: var(--gris-texte); margin-top: 0.3rem; }
.form-privacy { font-size: 0.8rem; color: var(--gris-texte); margin-bottom: 1rem; }

.btn-submit { position: relative; }
.btn-loading { display: none; }
.btn-submit.loading .btn-text { visibility: hidden; }
.btn-submit.loading .btn-loading { display: inline; position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%); }

.form-status {
    margin-top: 1rem; padding: 0.75rem 1rem;
    border-radius: var(--radius); font-size: 0.9rem; display: none;
}
.form-status.success { display: block; background: #E8F5E9; color: #2E7D32; }
.form-status.error { display: block; background: #FFEBEE; color: #C62828; }

@media (max-width: 768px) {
    .contact-grid { grid-template-columns: 1fr; gap: 2rem; }
}

/* ── Séquence 8 : OMP² ─────────────────────────────────────── */
.seq-omp2 { background: var(--gris-clair); }
.omp2-content {
    display: grid; grid-template-columns: 1.2fr 0.8fr;
    gap: 3rem; align-items: center;
}
.omp2-parcours {
    display: flex; flex-wrap: wrap; gap: 0.5rem;
    align-items: center; margin: 1.5rem 0;
    font-weight: 600; font-size: 0.9rem; color: var(--bleu-nuit);
}
.omp2-parcours .arrow { color: var(--turquoise); font-size: 1.2rem; }
.omp2-signature { font-style: italic; color: var(--gris-texte); }
.omp2-visual img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }

.omp2-phase {
    background: var(--blanc); border-radius: var(--radius-lg);
    padding: 2.5rem; margin: 2rem 0; text-align: center;
    box-shadow: var(--shadow);
}
.phase-badge {
    display: inline-block; padding: 0.5rem 1.25rem;
    background: #FFF3E0; color: #E65100; border-radius: 100px;
    font-size: 0.85rem; font-weight: 700; margin-bottom: 1rem;
}

.parcours-steps {
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem; margin-top: 2rem;
}
.parcours-step {
    text-align: center; padding: 1.5rem 1rem;
    background: var(--blanc); border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.step-num {
    width: 40px; height: 40px; border-radius: 50%;
    background: var(--turquoise); color: var(--blanc);
    display: flex; align-items: center; justify-content: center;
    font-weight: 800; margin: 0 auto 1rem;
}
.parcours-step h3 { font-size: 1rem; margin-bottom: 0.5rem; }
.parcours-step p { font-size: 0.85rem; color: var(--gris-texte); }

@media (max-width: 768px) {
    .omp2-content { grid-template-columns: 1fr; }
    .parcours-steps { grid-template-columns: repeat(2, 1fr); }
}

/* ── Séquence 9 : Waste² ───────────────────────────────────── */
.seq-waste2 { background: var(--bleu-nuit); color: var(--blanc); }
.seq-waste2 h2 { color: var(--blanc); }
.seq-waste2 .surtitre { color: var(--vert-clair); }
.waste2-header { text-align: center; margin-bottom: 3rem; }
.waste2-header p { color: rgba(255,255,255,0.8); max-width: 60ch; margin: 0 auto; }

.waste2-grid {
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}
.waste2-card {
    background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg); padding: 2rem 1.5rem;
    transition: background var(--transition), border-color var(--transition);
}
.waste2-card:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.2); }
.waste2-card h3 { color: var(--blanc); margin-bottom: 0.5rem; font-size: 1.1rem; }
.waste2-accroche {
    color: var(--vert-clair); font-weight: 600; font-size: 0.9rem;
    margin-bottom: 0.75rem;
}
.waste2-card p { color: rgba(255,255,255,0.7); font-size: 0.9rem; }
.waste2-status {
    display: inline-block; padding: 0.3rem 0.75rem;
    background: rgba(255,100,21,0.15); color: var(--orange);
    border-radius: 100px; font-size: 0.8rem; font-weight: 600;
    margin-bottom: 1rem;
}
.waste2-status.status-active {
    background: rgba(163,204,43,0.15); color: var(--vert-clair);
}
.waste2-card .btn-sm { margin-top: 1rem; }
.marketplace-note { font-size: 0.8rem; margin-top: 0.75rem; }
.marketplace-note a { color: var(--turquoise); }
.waste2-card .btn-outline { color: var(--blanc); border-color: rgba(255,255,255,0.3); font-size: 0.85rem; }
.waste2-card .btn-outline:hover { background: rgba(255,255,255,0.1); }
.waste2-footer { text-align: center; margin-top: 3rem; }
.waste2-signature {
    font-style: italic; color: rgba(255,255,255,0.6);
    margin-bottom: 1.5rem;
}

@media (max-width: 900px) {
    .waste2-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
    .waste2-grid { grid-template-columns: 1fr; }
}

/* ── Pages internes ─────────────────────────────────────────── */
.page-references, .page-omp2, .page-waste2, .page-legal {
    padding: 4rem 0;
}
.page-header {
    margin-bottom: 3rem;
}
.page-header h1 { margin-bottom: 0.5rem; }
.page-subtitle { font-size: 1.1rem; color: var(--gris-texte); }

/* Filtres */
.ref-filters {
    display: flex; gap: 0.5rem; margin-bottom: 1.5rem; flex-wrap: wrap;
}
.filter-btn {
    padding: 0.5rem 1rem; border: 2px solid var(--gris-moyen);
    border-radius: 100px; font-size: 0.85rem; font-weight: 600;
    color: var(--gris-texte); background: var(--blanc);
    transition: all var(--transition);
}
.filter-btn:hover { border-color: var(--turquoise); color: var(--bleu-nuit); }
.filter-btn.active { background: var(--turquoise); color: var(--blanc); border-color: var(--turquoise); }
.ref-count { font-size: 0.9rem; color: var(--gris-texte); margin-bottom: 2rem; }

/* Catalogue */
.ref-catalog-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}
.ref-catalog-card {
    background: var(--blanc); border-radius: var(--radius-lg);
    overflow: hidden; box-shadow: var(--shadow);
    transition: box-shadow var(--transition), transform var(--transition);
}
.ref-catalog-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.ref-card-image img { width: 100%; height: 200px; object-fit: cover; }
.ref-card-content { padding: 1.5rem; }
.ref-card-content h2 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.ref-accroche { font-size: 0.9rem; color: var(--gris-texte); margin-bottom: 0.75rem; }
.ref-meta { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1rem; font-size: 0.8rem; color: var(--gris-texte); }
.ref-meta span { background: var(--gris-clair); padding: 0.2rem 0.5rem; border-radius: 4px; }

.ref-empty {
    text-align: center; padding: 4rem 2rem;
    background: var(--gris-clair); border-radius: var(--radius-lg);
}

@media (max-width: 900px) {
    .ref-catalog-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
    .ref-catalog-grid { grid-template-columns: 1fr; }
}

/* Fiche référence */
.ref-breadcrumb {
    font-size: 0.85rem; color: var(--gris-texte);
    margin-bottom: 2rem;
}
.ref-breadcrumb a { color: var(--turquoise); }
.ref-header { margin-bottom: 2rem; }
.ref-header .ref-meta { margin-top: 1rem; }
.ref-accroche-large { font-size: 1.2rem; font-weight: 600; color: var(--bleu-nuit); max-width: 60ch; margin-bottom: 2rem; }
.ref-section { margin-bottom: 2rem; }
.ref-section h2 { font-size: 1.2rem; border-bottom: 2px solid var(--turquoise); padding-bottom: 0.5rem; display: inline-block; }
.ref-text { max-width: 65ch; }
.ref-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 2rem 0; }
.ref-tag {
    padding: 0.3rem 0.75rem; background: var(--gris-clair);
    border-radius: 100px; font-size: 0.8rem; font-weight: 600;
    color: var(--bleu-nuit);
}
.ref-media { margin: 2rem 0; }
.ref-media img { border-radius: var(--radius-lg); }
.media-credit { font-size: 0.8rem; color: var(--gris-texte); font-style: italic; margin-top: 0.5rem; }
.ref-cta {
    background: var(--gris-clair); border-radius: var(--radius-lg);
    padding: 2rem; text-align: center; margin-top: 3rem;
}
.ref-cta p { font-size: 1.05rem; font-weight: 600; margin-bottom: 1rem; }
.ref-cta .btn { margin: 0 0.5rem; }

/* ── Pages OMP² & Waste² internes ──────────────────────────── */
.waste2-filieres {
    display: grid; grid-template-columns: repeat(2, 1fr);
    gap: 2rem; margin: 2rem 0;
}
.waste2-filiere {
    background: var(--blanc); border-radius: var(--radius-lg);
    padding: 2rem; box-shadow: var(--shadow);
    border-left: 4px solid var(--turquoise);
}
.waste2-filiere h2 { font-size: 1.2rem; }
.filiere-accroche { color: var(--vert-profond); font-weight: 600; font-size: 0.95rem; }

@media (max-width: 768px) {
    .waste2-filieres { grid-template-columns: 1fr; }
}

/* ── Pages légales ──────────────────────────────────────────── */
.page-legal h2 { margin-top: 2.5rem; font-size: 1.15rem; }
.page-legal ul { padding-left: 1.5rem; margin-bottom: 1rem; }
.page-legal li { margin-bottom: 0.4rem; }

/* ── 404 ────────────────────────────────────────────────────── */
.page-404 {
    text-align: center; padding: 8rem 2rem;
    background: var(--gris-clair);
}
.page-404 h1 { font-size: 3rem; margin-bottom: 1rem; }
.actions-404 { margin-top: 2rem; display: flex; gap: 1rem; justify-content: center; }

/* ── Footer ─────────────────────────────────────────────────── */
.site-footer {
    background: var(--bleu-nuit); color: rgba(255,255,255,0.7);
    padding: 4rem 0 2rem;
}
.footer-grid {
    display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 2rem; margin-bottom: 3rem;
}
.footer-logo {
    font-size: 1.25rem; font-weight: 800; color: var(--blanc);
    letter-spacing: 0.05em; text-transform: uppercase;
    display: block; margin-bottom: 0.5rem;
}
.footer-tagline {
    font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase;
    color: rgba(255,255,255,0.4); max-width: 300px;
}
.footer-nav h4 {
    color: var(--blanc); font-size: 0.85rem; text-transform: uppercase;
    letter-spacing: 0.05em; margin-bottom: 1rem;
}
.footer-nav ul { list-style: none; }
.footer-nav li { margin-bottom: 0.5rem; }
.footer-nav a { color: rgba(255,255,255,0.6); font-size: 0.85rem; }
.footer-nav a:hover { color: var(--turquoise); }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 1.5rem; text-align: center;
    font-size: 0.8rem; color: rgba(255,255,255,0.3);
}

@media (max-width: 768px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* ── Accessibility ──────────────────────────────────────────── */
:focus-visible {
    outline: 3px solid var(--turquoise);
    outline-offset: 2px;
}

@media (max-width: 480px) {
    html { font-size: 16px; }
    section { padding: 3rem 0; }
    .container { padding: 0 1rem; }
}