:root {
      /* Fonds clairs, neutres */
      --bg: #FAFAFC;            /* fond principal */
      --bg-alt: #F4F5F9;        /* alternance subtile */
      --bg-panel: #FFFFFF;      /* panneaux blancs */
      --bg-soft: #EFF2F7;       /* zone légèrement plus froide */

      /* Bleu LEXCO — utilisé avec parcimonie */
      --blue: #3A5FA0;
      --blue-bright: #4A7CC9;
      --blue-soft: #E6ECF5;

      /* Texte */
      --t-1: #14182A;     /* titres */
      --t-2: #3A3F52;     /* corps */
      --t-3: #575c6f;     /* secondaire 6C7185 */
      --t-4: #9AA0B0;     /* annotations */

      /* Lignes */
      --rule: #E4E6EE;
      --rule-soft: #ECEEF4;
      --rule-strong: #D4D7E0;

      --ff: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
      --max: 1240px;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }

    body {
      font-family: var(--ff);
      font-weight: 400;
      font-size: 16px;
      line-height: 1.65;
      color: var(--t-2);
      background: var(--bg);
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      overflow-x: hidden;
    }
    a { color: var(--blue); text-decoration: none; transition: color .25s ease; }
    a:hover { color: var(--blue-bright); }
    img { display: block; max-width: 100%; }
    ::selection { background: var(--blue-soft); color: var(--t-1); }

    .eyebrow {
      display: inline-block;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 0.24em;
      text-transform: uppercase;
      color: var(--blue);
    }

    /* ============= HEADER ============= */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(250, 250, 252, 0.88);
      backdrop-filter: blur(12px) saturate(1.1);
      -webkit-backdrop-filter: blur(12px) saturate(1.1);
      border-bottom: 1px solid var(--rule);
    }
    .header-inner {
      max-width: var(--max);
      margin: 0 auto;
      padding: 20px 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 40px;
    }
    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-logo {
      width: 46px;
      height: 46px;
      object-fit: contain;
      flex-shrink: 0;
    }
    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.1;
      white-space: nowrap;
    }
    .brand-text .name {
      font-weight: 600;
      font-size: 16px;
      letter-spacing: 0.01em;
      color: var(--t-1);
    }
    .brand-text .sub {
      font-size: 9px;
      font-weight: 500;
      letter-spacing: 0.22em;
      text-transform: uppercase;
      color: var(--t-3);
      margin-top: 5px;
    }

    nav ul {
      display: flex;
      gap: 36px;
      list-style: none;
      align-items: center;
    }
    nav a {
      font-weight: 500;
      font-size: 13px;
      color: var(--t-2);
      letter-spacing: 0.02em;
      position: relative;
      padding-bottom: 3px;
    }
    nav a::after {
      content: '';
      position: absolute;
      left: 0; bottom: 0;
      width: 0;
      height: 1px;
      background: var(--blue);
      transition: width .3s ease;
    }
    nav a:hover { color: var(--t-1); }
    nav a:hover::after { width: 100%; }

    .cta-header {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 20px;
      border: 1px solid var(--rule-strong);
      border-radius: 999px;
      font-size: 12.5px;
      font-weight: 500;
      letter-spacing: 0.04em;
      color: var(--t-1);
      background: transparent;
      transition: all .25s ease;
    }
    .cta-header:hover {
      border-color: var(--blue);
      color: var(--blue);
    }

    /* ============= HERO ============= */
    .hero {
      padding: 140px 40px 130px;
      position: relative;
    }
    .hero-inner {
      max-width: var(--max);
      margin: 0 auto;
      display: grid;
      grid-template-columns: minmax(0, 1fr) 320px;
      gap: 100px;
      align-items: start;
    }

    .hero-meta {
      display: flex;
      align-items: center;
      gap: 20px;
      margin-bottom: 48px;
    }
    .hero-meta .rule {
      flex: 0 0 56px;
      height: 1px;
      background: var(--rule-strong);
    }
    .hero-meta .year {
      font-weight: 500;
      font-size: 14px;
      color: var(--t-3);
      letter-spacing: 0.04em;
    }

    .hero h1 {
      font-weight: 300;
      font-size: clamp(2.4rem, 5.4vw, 4.6rem);
      line-height: 1.08;
      letter-spacing: -0.022em;
      color: var(--t-1);
      margin-bottom: 44px;
      max-width: 900px;
    }
    .hero h1 em {
      font-style: italic;
      font-weight: 300;
      color: var(--blue);
    }

    .hero-lede {
      max-width: 640px;
      font-size: 1.05rem;
      line-height: 1.75;
      color: var(--t-2);
      margin-bottom: 52px;
      font-weight: 400;
    }

    .cta-group {
      display: flex;
      gap: 28px;
      align-items: center;
      flex-wrap: wrap;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-family: var(--ff);
      font-weight: 500;
      font-size: 13px;
      letter-spacing: 0.04em;
      cursor: pointer;
      border: none;
      transition: all .25s ease;
    }
    .btn-primary {
      background: var(--t-1);
      color: #FFF;
      padding: 16px 28px;
      border-radius: 2px;
    }
    .btn-primary:hover {
      background: var(--blue);
      transform: translateY(-1px);
      color: var(--bg-panel);
    }
    .btn-ghost {
      background: transparent;
      color: var(--t-1);
      padding: 4px 0 6px;
      border-bottom: 1px solid var(--t-1);
      border-radius: 0;
    }
    .btn-ghost:hover { color: var(--blue); border-color: var(--blue); }
    .btn-arrow { display: inline-block; transition: transform .25s ease; }
    .btn:hover .btn-arrow { transform: translateX(4px); }

    /* Hero aside */
    .hero-aside {
      padding-left: 36px;
      padding-top: 8px;
      border-left: 1px solid var(--rule);
    }
    .hero-aside .label {
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 0.24em;
      text-transform: uppercase;
      color: var(--t-3);
      margin-bottom: 28px;
    }
    .aside-stat {
      padding: 26px 0;
      border-bottom: 1px solid var(--rule);
    }
    .aside-stat:first-of-type { padding-top: 0; }
    .aside-stat:last-child { border-bottom: none; padding-bottom: 0; }
    .aside-stat .num {
      display: flex;
      align-items: baseline;
      gap: 8px;
      font-weight: 300;
      font-size: 2.4rem;
      color: var(--t-1);
      line-height: 1;
      letter-spacing: -0.03em;
      margin-bottom: 10px;
    }
    .aside-stat .num em {
      font-style: normal;
      font-size: 0.95rem;
      color: var(--t-3);
      font-weight: 400;
      letter-spacing: 0;
    }
    .aside-stat .desc {
      font-size: 13px;
      color: var(--t-3);
      line-height: 1.6;
    }

    /* ============= SECTIONS ============= */
    .section {
      padding: 140px 40px;
      position: relative;
    }
    .section-inner { max-width: var(--max); margin: 0 auto; }
    .bg-alt { background: var(--bg-alt); }

    .section-head {
      display: grid;
      grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
      gap: 80px;
      padding-bottom: 80px;
      margin-bottom: 80px;
      border-bottom: 1px solid var(--rule);
      align-items: start;
    }

    .section-head-left .eyebrow { display: block; margin-bottom: 28px; }
    .section-number {
      font-weight: 300;
      font-size: 3rem;
      color: var(--t-4);
      line-height: 1;
      letter-spacing: -0.02em;
    }

    .section-title {
      font-weight: 300;
      font-size: clamp(1.7rem, 3.2vw, 2.6rem);
      line-height: 1.2;
      letter-spacing: -0.02em;
      color: var(--t-1);
      margin-bottom: 28px;
    }
    .section-title em {
      font-style: italic;
      color: var(--blue);
      font-weight: 300;
    }

    .section-sub {
      font-size: 1.02rem;
      line-height: 1.75;
      color: var(--t-3);
      max-width: 680px;
    }

    /* ============= VALEURS ============= */
    .values-list { display: grid; gap: 0; }
    .value-row {
      display: grid;
      grid-template-columns: 72px minmax(0, 5fr) minmax(0, 7fr);
      gap: 48px;
      padding: 44px 0;
      border-bottom: 1px solid var(--rule);
      align-items: start;
      transition: padding .35s ease;
    }
    .value-row:first-child { border-top: 1px solid var(--rule); }
    .value-row:hover { padding-left: 16px; padding-right: 16px; }
    .value-num {
      font-family: 'Times New Roman', Georgia, serif;
      font-style: italic;
      font-weight: 400;
      font-size: 1.1rem;
      color: var(--blue);
      line-height: 1;
      letter-spacing: 0.02em;
    }
    .value-title {
      font-weight: 500;
      font-size: 1.22rem;
      line-height: 1.3;
      color: var(--t-1);
      letter-spacing: -0.01em;
    }
    .value-desc {
      font-size: 0.97rem;
      line-height: 1.75;
      color: var(--t-3);
    }

    /* ============= MISSIONS ============= */
    .missions-stack { display: flex; flex-direction: column; }
    .mission-block {
      display: grid;
      grid-template-columns: 300px minmax(0, 1fr);
      gap: 70px;
      padding: 56px 0;
      border-bottom: 1px solid var(--rule);
      align-items: start;
    }
    .mission-block:first-child {
      border-top: 1px solid var(--t-1);
      padding-top: 48px;
    }
    .mission-block:last-child {
      border-bottom: 1px solid var(--t-1);
    }
    .mission-kicker {
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 0.26em;
      text-transform: uppercase;
      color: var(--blue);
      margin-bottom: 18px;
    }
    .mission-side h3 {
      font-weight: 400;
      font-size: 1.55rem;
      line-height: 1.25;
      color: var(--t-1);
      letter-spacing: -0.015em;
      margin-bottom: 18px;
    }
    .mission-side p {
      font-size: 0.92rem;
      line-height: 1.7;
      color: var(--t-3);
    }

    .mission-list {
      list-style: none;
      padding: 0;
      counter-reset: item;
    }
    .mission-list li {
      padding: 18px 0;
      border-bottom: 1px solid var(--rule-soft);
      display: grid;
      grid-template-columns: 32px 1fr;
      gap: 18px;
      align-items: baseline;
    }
    .mission-list li:first-child { padding-top: 0; }
    .mission-list li:last-child { border-bottom: none; }
    .mission-list li::before {
      content: counter(item, decimal-leading-zero);
      counter-increment: item;
      font-weight: 400;
      font-size: 0.78rem;
      color: var(--t-4);
      letter-spacing: 0.05em;
    }
    .mission-list .m-title {
      font-weight: 500;
      font-size: 0.98rem;
      color: var(--t-1);
      line-height: 1.45;
      display: block;
      margin-bottom: 6px;
    }
    .mission-ref {
      font-size: 0.77rem;
      color: var(--t-4);
      font-weight: 400;
      line-height: 1.6;
    }
    .mission-ref a {
      color: var(--blue);
      border-bottom: 1px dotted var(--blue);
      padding-bottom: 1px;
    }
    .mission-ref a:hover {
      color: var(--blue-bright);
      border-bottom-style: solid;
    }

    /* ============= INSTANCES ============= */
    .instances-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      border-top: 1px solid var(--rule);
      border-left: 1px solid var(--rule);
    }
    .instance-card {
      padding: 44px 28px;
      border-right: 1px solid var(--rule);
      border-bottom: 1px solid var(--rule);
      transition: background .3s ease;
      position: relative;
      background: transparent;
    }
    .instance-card:hover { background: var(--bg-panel); }
    .instance-num {
      font-weight: 400;
      font-size: 0.82rem;
      color: var(--blue);
      margin-bottom: 26px;
      display: block;
      letter-spacing: 0.1em;
    }
    .instance-card h4 {
      font-weight: 600;
      font-size: 1.2rem;
      line-height: 1.2;
      color: var(--t-1);
      margin-bottom: 10px;
      letter-spacing: -0.005em;
    }
    .instance-card p {
      font-size: 0.86rem;
      color: var(--t-3);
      line-height: 1.5;
    }

    /* ============= APPROCHE ============= */
    .approach-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      border-top: 1px solid var(--rule);
    }
    .approach-step {
      padding: 44px 28px 0 0;
      border-right: 1px solid var(--rule);
      min-height: 300px;
    }
    .approach-step:last-child { border-right: none; padding-right: 0; }
    .approach-step:not(:first-child) { padding-left: 32px; }
    .approach-phase {
      font-weight: 500;
      font-size: 11px;
      color: var(--blue);
      margin-bottom: 28px;
      letter-spacing: 0.22em;
      text-transform: uppercase;
    }
    .approach-step h4 {
      font-weight: 500;
      font-size: 1.4rem;
      line-height: 1.25;
      color: var(--t-1);
      margin-bottom: 18px;
      letter-spacing: -0.01em;
    }
    .approach-step p {
      font-size: 0.92rem;
      line-height: 1.7;
      color: var(--t-3);
    }

    /* ============= DURABILITÉ ============= */
    .sustain-wrap {
      display: grid;
      grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
      gap: 80px;
      align-items: start;
    }
    .sustain-text h3 {
      font-weight: 400;
      font-size: 1.6rem;
      line-height: 1.25;
      color: var(--t-1);
      margin-bottom: 28px;
      letter-spacing: -0.015em;
    }
    .sustain-text h3 em {
      font-style: italic;
      color: var(--blue);
      font-weight: 300;
    }
    .sustain-text > p {
      font-size: 1rem;
      line-height: 1.75;
      color: var(--t-2);
      margin-bottom: 32px;
    }
    .sustain-points {
      list-style: none;
      padding: 0;
      border-top: 1px solid var(--rule);
    }
    .sustain-points li {
      padding: 20px 0;
      border-bottom: 1px solid var(--rule);
      font-size: 0.97rem;
      line-height: 1.65;
      color: var(--t-2);
      display: grid;
      grid-template-columns: 36px 1fr;
      gap: 18px;
      align-items: baseline;
    }
    .sustain-points li::before {
      content: '—';
      color: var(--blue);
      font-weight: 400;
    }
    .sustain-visual {
      background: var(--bg-panel);
      border: 1px solid var(--rule);
      padding: 44px 40px;
    }
    .ref-label {
      font-size: 10px;
      font-weight: 600;
      letter-spacing: 0.26em;
      text-transform: uppercase;
      color: var(--blue);
      margin-bottom: 20px;
    }
    .sustain-visual h4 {
      font-weight: 500;
      font-size: 1.2rem;
      line-height: 1.3;
      color: var(--t-1);
      margin-bottom: 20px;
      letter-spacing: -0.01em;
    }
    .sustain-visual p {
      font-size: 0.93rem;
      line-height: 1.7;
      color: var(--t-3);
    }

    /* ============= CONTACT ============= */
    .contact-wrap {
      display: grid;
      grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
      gap: 80px;
      align-items: start;
    }
    .contact-info h3 {
      font-weight: 300;
      font-size: 2rem;
      line-height: 1.2;
      color: var(--t-1);
      margin-bottom: 28px;
      letter-spacing: -0.02em;
    }
    .contact-info h3 em {
      font-style: italic;
      color: var(--blue);
      font-weight: 300;
    }
    .contact-info > p {
      font-size: 1rem;
      line-height: 1.75;
      color: var(--t-3);
      margin-bottom: 36px;
    }
    .contact-details { list-style: none; padding: 0; }
    .contact-details li {
      padding: 20px 0;
      border-top: 1px solid var(--rule);
      display: grid;
      grid-template-columns: 110px 1fr;
      gap: 24px;
      align-items: baseline;
    }
    .contact-details li:last-child { border-bottom: 1px solid var(--rule); }
    .contact-label {
      font-size: 11px;
      font-weight: 600;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--t-4);
    }
    .contact-value {
      font-weight: 500;
      font-size: 0.98rem;
      color: var(--t-1);
      line-height: 1.5;
    }
    .contact-value a { color: var(--blue); }

    .contact-panel {
      background: var(--bg-panel);
      border: 1px solid var(--rule);
      padding: 48px 44px;
    }
    .contact-panel h4 {
      font-weight: 400;
      font-size: 1.4rem;
      line-height: 1.3;
      color: var(--t-1);
      margin-bottom: 18px;
      letter-spacing: -0.015em;
    }
    .contact-panel h4 em { font-style: italic; color: var(--blue); font-weight: 300; }
    .contact-panel > p {
      font-size: 0.95rem;
      line-height: 1.7;
      color: var(--t-3);
      margin-bottom: 36px;
    }
    .contact-form { display: grid; gap: 20px; }
    .contact-form label {
      display: block;
      font-size: 11px;
      font-weight: 600;
      letter-spacing: 0.22em;
      text-transform: uppercase;
      color: var(--t-4);
      margin-bottom: 8px;
    }
    .contact-form input,
    .contact-form textarea {
      width: 100%;
      background: var(--bg);
      border: 1px solid var(--rule);
      padding: 14px 16px;
      font-family: var(--ff);
      font-size: 0.95rem;
      color: var(--t-1);
      border-radius: 0;
      transition: border-color .2s ease;
    }
    .contact-form input:focus,
    .contact-form textarea:focus {
      outline: none;
      border-color: var(--blue);
    }
    .contact-form textarea { resize: vertical; min-height: 110px; }
    .contact-form .btn-primary { justify-self: start; margin-top: 8px; }

    .contact-form .field-hp {
        position: absolute;
        left: -9999px;
    }

    /* ============= FOOTER ============= */
    .site-footer {
      background: var(--bg);
      padding: 100px 40px 40px;
      border-top: 1px solid var(--rule);
    }
    .footer-inner { max-width: var(--max); margin: 0 auto; }
    .footer-top {
      display: grid;
      grid-template-columns: minmax(0, 2.2fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1fr);
      gap: 60px;
      padding-bottom: 56px;
      border-bottom: 1px solid var(--rule);
    }
    .footer-brand {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 22px;
    }
    .footer-brand img { width: 44px; height: 44px; object-fit: contain; }
    .footer-brand .name {
      font-weight: 600;
      font-size: 15px;
      letter-spacing: 0.04em;
      color: var(--t-1);
    }
    .footer-about {
      font-size: 0.9rem;
      line-height: 1.7;
      color: var(--t-3);
      max-width: 380px;
    }
    .footer-col h5 {
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 0.26em;
      text-transform: uppercase;
      color: var(--t-4);
      margin-bottom: 22px;
    }
    .footer-col ul { list-style: none; padding: 0; }
    .footer-col li { padding: 7px 0; font-size: 0.92rem; }
    .footer-col a { color: var(--t-2); }
    .footer-col a:hover { color: var(--blue); }
    .footer-memberships {
      padding-top: 28px;
      border-top: 1px solid var(--rule);
      font-size: 0.78rem;
      color: var(--t-3);
      line-height: 1.7;
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 32px;
      align-items: center;
    }
    .footer-memberships p { margin: 0; }
    .footer-memberships-text > p + p { margin-top: 4px; }
    .oec-badge {
      display: inline-flex;
      align-items: center;
      gap: 14px;
      padding: 10px 16px;
      border: 1px solid var(--rule);
      background: var(--bg-panel);
      border-radius: 4px;
      color: var(--t-2);
      transition: border-color .25s ease, background .25s ease;
      text-decoration: none;
      white-space: nowrap;
    }
    .oec-badge:hover { border-color: var(--blue); background: var(--bg-panel); }
    .oec-badge-logo {
      height: 34px;
      width: auto;
      display: block;
      flex-shrink: 0;
    }
    .oec-badge-mark {
      min-width: 42px;
      height: 38px;
      padding: 0 8px;
      border-radius: 999px;
      background: var(--blue);
      color: #fff;
      display: grid;
      place-items: center;
      font-weight: 600;
      font-size: 0.62rem;
      letter-spacing: 0.06em;
      line-height: 1;
      flex-shrink: 0;
    }
    .footer-badges {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      justify-content: flex-end;
    }
    .oec-badge-text {
      display: flex;
      flex-direction: column;
      gap: 2px;
      line-height: 1.25;
    }
    .oec-badge-text .o1 {
      font-size: 9px;
      font-weight: 600;
      letter-spacing: 0.2em;
      text-transform: uppercase;
      color: var(--t-4);
    }
    .oec-badge-text .o2 {
      font-size: 0.82rem;
      font-weight: 500;
      color: var(--t-1);
    }
    @media (max-width: 720px) {
      .footer-memberships { grid-template-columns: 1fr; }
    }
    .footer-legal {
      margin-top: 16px;
      padding-top: 16px;
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      font-size: 0.78rem;
      color: var(--t-4);
    }
    .footer-legal a:hover { color: var(--blue); }

    /* ============= REVEAL ============= */
    .reveal {
      opacity: 0;
      transform: translateY(16px);
      transition: opacity .8s cubic-bezier(0.16,1,0.3,1), transform .8s cubic-bezier(0.16,1,0.3,1);
    }
    .reveal.in { opacity: 1; transform: none; }

    /* ============= legal ============= */
    .legal-main { padding: 140px 40px 80px; background: var(--bg); }
    .legal-inner { max-width: 880px; margin: 0 auto; }
    .legal-eyebrow {
      font-size: 12px; font-weight: 600; letter-spacing: 0.32em; text-transform: uppercase;
      color: var(--blue); margin-bottom: 24px;
    }
    .legal-inner h1 {
      font-weight: 300; font-size: clamp(2.2rem, 4.6vw, 3.4rem);
      line-height: 1.08; letter-spacing: -0.025em; color: var(--t-1);
      margin-bottom: 20px;
    }
    .legal-inner > p.lede {
      font-size: 1.05rem; color: var(--t-3); line-height: 1.7;
      padding-bottom: 48px; border-bottom: 1px solid var(--rule); margin-bottom: 56px;
      max-width: 720px;
    }
    .legal-inner h2 {
      font-weight: 400; font-size: 1.45rem; color: var(--t-1);
      margin: 56px 0 20px; letter-spacing: -0.015em;
      display: flex; align-items: baseline; gap: 18px;
    }
    .legal-inner h2::before {
      content: attr(data-num);
      font-family: 'Times New Roman', Georgia, serif;
      font-style: italic; font-weight: 400; font-size: 1.15rem;
      color: var(--blue); min-width: 32px;
    }
    .legal-inner h3 {
      font-weight: 600; font-size: 0.82rem; letter-spacing: 0.14em; text-transform: uppercase;
      color: var(--t-3); margin: 28px 0 10px;
    }
    .legal-inner p, .legal-inner li {
      font-size: 0.95rem; line-height: 1.8; color: var(--t-2);
    }
    .legal-inner ul { padding-left: 0; list-style: none; margin-bottom: 16px; }
    .legal-inner li {
      padding: 8px 0; border-bottom: 1px solid var(--rule-soft);
      display: grid; grid-template-columns: 220px 1fr; gap: 24px;
    }
    .legal-inner li:last-child { border-bottom: none; }
    .legal-inner li > span:first-child {
      font-size: 12px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase;
      color: var(--t-4); padding-top: 3px;
    }
    .legal-inner li > span:last-child { color: var(--t-1); }
    .legal-inner a { color: var(--blue); text-decoration: underline; text-decoration-color: var(--rule-strong); text-underline-offset: 3px; }
    .legal-inner a:hover { text-decoration-color: var(--blue); }
    .legal-divider { height: 1px; background: var(--rule); margin: 56px 0; }
    @media (max-width: 720px) {
      .legal-main { padding: 120px 20px 60px; }
      .legal-inner li { grid-template-columns: 1fr; gap: 4px; }
    }

/* ── Feedback formulaire ── */
    #contact-feedback {
      margin-top: 1rem;
      padding: 0.875rem 1.125rem;
      border-radius: 4px;
      font-size: 0.9rem;
      line-height: 1.5;
      display: none; /* caché par défaut */
    }
    #contact-feedback.is-success {
      display: block;
      background: #f0faf4;
      border: 1px solid #6bbf8e;
      color: #1d5e36;
    }
    #contact-feedback.is-error {
      display: block;
      background: #fdf3f3;
      border: 1px solid #d9807e;
      color: #7a1c1a;
    }
    #contact-feedback ul {
      margin: 0.25rem 0 0 1rem;
      padding: 0;
    }
    #contact-submit[disabled] {
      opacity: 0.6;
      cursor: not-allowed;
      pointer-events: none;
    }


    /* ============= RESPONSIVE ============= */
    @media (max-width: 1024px) {
      .instances-grid { grid-template-columns: repeat(3, 1fr); }
      .approach-grid { grid-template-columns: repeat(2, 1fr); }
      .approach-step { min-height: auto; padding: 40px 0 !important; border-right: none; border-bottom: 1px solid var(--rule); }
      .approach-step:nth-child(odd) { border-right: 1px solid var(--rule); padding-right: 32px !important; }
      .approach-step:nth-child(even) { padding-left: 32px !important; }
    }
    @media (max-width: 820px) {
      .header-inner { padding: 14px 20px; gap: 16px; }
      nav, .cta-header { display: none; }
      .brand-text .sub { display: none; }
      .hero { padding: 80px 20px 80px; }
      .hero-inner { grid-template-columns: 1fr; gap: 56px; }
      .hero-aside { border-left: none; border-top: 1px solid var(--rule); padding-left: 0; padding-top: 40px; }
      .section { padding: 80px 20px; }
      .section-head { grid-template-columns: 1fr; gap: 24px; padding-bottom: 48px; margin-bottom: 48px; }
      .value-row { grid-template-columns: 48px 1fr; gap: 16px; padding: 28px 0; }
      .value-row .value-desc { grid-column: 1 / -1; padding-left: 64px; margin-top: -8px; }
      .mission-block { grid-template-columns: 1fr; gap: 28px; padding: 40px 0; }
      .instances-grid { grid-template-columns: repeat(2, 1fr); }
      .approach-grid { grid-template-columns: 1fr; }
      .approach-step { border-right: none !important; padding: 36px 0 !important; }
      .sustain-wrap, .contact-wrap { grid-template-columns: 1fr; gap: 48px; }
      .contact-panel { padding: 32px 24px; }
      .footer-top { grid-template-columns: 1fr 1fr; gap: 40px; }
      .footer-top > :first-child { grid-column: 1 / -1; }
      .footer-legal { flex-direction: column; }
    }
    @media (max-width: 480px) {
      .instances-grid { grid-template-columns: 1fr; }
      .footer-top { grid-template-columns: 1fr; }
      .contact-details li { grid-template-columns: 1fr; gap: 6px; }
    }

    @media (prefers-reduced-motion: reduce) {
      .reveal { opacity: 1; transform: none; transition: none; }
      html { scroll-behavior: auto; }
    }