:root {
      --noir:      #1C2128;
      --noir-2:    #232B35;
      --noir-3:    #2C3540;
      --noir-4:    #364250;
      --gris:      #6B7A8D;
      --gris-mid:  #98A8B8;
      --gris-clair:#C8D4E0;
      --blanc:     #EDF2F7;
      --jaune:     #F0920A;
      --jaune-dim: #D07A08;
      --acier:     #4A90B8;
      --acier-dim: #2E6A8A;
    }
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      font-family: 'Barlow', sans-serif;
      background: var(--noir); color: var(--blanc);
      overflow-x: hidden;
    }



    /* ── GRAIN ── */
    body::after {
      content: ''; position: fixed; inset: 0; z-index: 9997; pointer-events: none;
      background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
      opacity: 0.2;
    }
    /* Metallic sheen on hero */
    .hero::before {
      content: ''; position: absolute; inset: 0; z-index: 1; pointer-events: none;
      background: repeating-linear-gradient(
        92deg,
        transparent 0px,
        rgba(74,144,184,0.015) 1px,
        transparent 2px,
        transparent 6px
      );
    }

    /* ── NAV ── */
    nav {
      position: fixed; top: 0; left: 0; right: 0; z-index: 500;
      display: flex; align-items: center;
      padding: 0 clamp(1.5rem, 4vw, 3.5rem); height: 96px;
      background: rgba(28,33,40,0.92); backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(74,144,184,0.15);
      box-shadow: 0 4px 24px rgba(0,0,0,0.45);
      transition: border-color 0.3s;
    }
    nav.scrolled { border-bottom-color: rgba(74,144,184,0.35); }
    .nav-logo { display: flex; align-items: center; margin-right: auto; }
    .nav-logo a { text-decoration: none; color: inherit; }
    .nav-links { display: flex; gap: 2.5rem; list-style: none; flex: none; }
    .nav-right { display: flex; align-items: center; gap: 1.5rem; margin-left: 2.5rem; }
    .nav-links a {
      text-decoration: none;
      font-family: 'Barlow Condensed', sans-serif;
      font-size: 1.6rem; font-weight: 600;
      letter-spacing: 0.14em; text-transform: uppercase;
      color: var(--gris-mid); transition: color 0.2s;
    }
    .nav-links a:hover { color: var(--jaune); }
    .nav-cta {
      text-decoration: none;
      background: var(--jaune); color: var(--noir);
      padding: 0.45rem 1.1rem; font-weight: 800;
      font-family: 'Barlow Condensed', sans-serif;
      font-size: 1.6rem; letter-spacing: 0.14em; text-transform: uppercase;
      white-space: nowrap;
    }
    .nav-cta:hover { background: var(--blanc); }
    .nav-phone {
      font-family: 'Barlow Condensed', sans-serif;
      font-size: 1.6rem; font-weight: 700;
      color: var(--jaune); letter-spacing: 0.08em;
      white-space: nowrap;
    }
    .nav-brand {
      font-family: 'Barlow Condensed', sans-serif;
      font-size: 1.6rem; font-weight: 800;
      letter-spacing: 0.14em; text-transform: uppercase;
      background: var(--jaune); color: var(--noir);
      padding: 0.45rem 1.1rem;
      white-space: nowrap;
    }
    .nav-logo a:hover .nav-brand { background: var(--blanc); }
    .burger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 0.4rem; }
    .burger span { display: block; width: 22px; height: 2px; background: var(--blanc); transition: all 0.3s; }

    /* ── HERO ── */
    .hero {
      min-height: calc(100vh - 176px); display: flex; flex-direction: column;
      justify-content: center;
      padding: 0 clamp(1.5rem, 5vw, 4rem) 0;
      position: relative; overflow: hidden;
    }
    .hero-bg { position: absolute; inset: 0; background: linear-gradient(160deg, #1a2535 0%, #1C2128 45%, #1e2a32 100%); }
    .hero-grid {
      position: absolute; inset: 0;
      background-image:
        linear-gradient(rgba(74,144,184,0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(74,144,184,0.06) 1px, transparent 1px);
      background-size: 60px 60px;
    }
    .hero-glow {
      position: absolute; inset: 0;
      background: radial-gradient(ellipse at 65% 40%, rgba(74,144,184,0.12) 0%, transparent 65%);
    }
    .hero-big-num {
      position: absolute; top: 50%; right: clamp(2rem, 8vw, 8rem);
      transform: translateY(-50%);
      font-family: 'Barlow Condensed', sans-serif;
      font-size: clamp(16rem, 28vw, 26rem); font-weight: 900; line-height: 1;
      color: transparent; -webkit-text-stroke: 1px rgba(74,144,184,0.1);
      user-select: none; pointer-events: none; letter-spacing: -0.04em;
    }
    .hero-content { position: relative; z-index: 2; max-width: 900px; }
    .hero-tag {
      display: flex; flex-direction: column; align-items: flex-start; gap: 0.1rem;
      font-family: 'Barlow Condensed', sans-serif;
      font-size: 2.16rem; font-weight: 700;
      letter-spacing: 0.1em; text-transform: uppercase; color: var(--jaune);
      margin-bottom: 0.3rem;
      opacity: 0; animation: fadeUp 0.7s 0.2s ease forwards;
    }
    .hero-tag::before { display: none; }
    .hero-title {
      font-family: 'Barlow Condensed', sans-serif;
      font-size: clamp(1.8rem, 3.8vw, 3.8rem); font-weight: 900; line-height: 0.92;
      text-transform: uppercase; letter-spacing: -0.02em; color: var(--blanc);
      opacity: 0; animation: fadeUp 0.7s 0.3s ease forwards;
    }
    .hero-title .accent { color: var(--jaune); }
    .hero-sub {
      display: flex; align-items: flex-end; gap: 3rem; flex-wrap: wrap; margin-top: 2.5rem;
      opacity: 0; animation: fadeUp 0.7s 0.5s ease forwards;
    }
    .hero-slogan { font-size: clamp(0.88rem, 1.4vw, 1.05rem); color: var(--gris-mid); font-weight: 300; font-style: italic; max-width: 280px; line-height: 1.6; }
    .hero-btns { display: flex; gap: 0.8rem; flex-wrap: wrap; }

    /* ── HERO LAYOUT ── */
    .hero-inner {
      display: flex; flex-direction: column;
      gap: 2rem;
      position: relative; z-index: 2;
      padding: 1rem 0;
    }
    .hero-content { }

    /* ── À LA UNE ── */
    .hero-une { align-self: start; }
    .une-label {
      font-family: 'Barlow Condensed', sans-serif;
      font-size: 1.4rem; font-weight: 800;
      letter-spacing: 0.2em; text-transform: uppercase;
      color: var(--jaune); margin-bottom: 0.8rem;
      display: flex; align-items: center; gap: 0.6rem;
    }
    .une-label::before { content:''; width:20px; height:2px; background:var(--jaune); }
    .une-grid { display: flex; flex-direction: row; gap: 0.6rem; }
    .une-card { flex: 1; }
    .une-card {
      display: flex; gap: 0.8rem; align-items: center;
      background: rgba(255,255,255,0.04);
      border: 1px solid rgba(74,144,184,0.15);
      border-left: 3px solid var(--jaune);
      padding: 0.6rem 0.8rem;
      transition: background 0.2s;
      cursor: pointer;
    }
    .une-card:hover { background: rgba(232,197,71,0.06); }
    .une-img {
      width: 64px; height: 48px; flex-shrink: 0;
      object-fit: cover; display: block;
    }
    .une-img img { width:100%; height:100%; object-fit:cover; display:block; }
    .une-body { flex: 1; min-width: 0; }
    .une-tag {
      font-family: 'Barlow Condensed', sans-serif;
      font-size: 1.2rem; font-weight: 800;
      letter-spacing: 0.14em; text-transform: uppercase;
      color: var(--jaune); margin-bottom: 2px;
    }
    .une-title {
      font-family: 'Barlow Condensed', sans-serif;
      font-size: 1.425rem; font-weight: 700;
      color: var(--blanc); line-height: 1.2;
      white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    }
    @media (max-width: 768px) {
      .une-grid { flex-direction: column; }
      .hero-une { display: none; }
    }
    .btn-primary {
      display: inline-block; text-decoration: none;
      background: var(--jaune); color: var(--noir);
      padding: 0.85rem 2rem;
      font-family: 'Barlow Condensed', sans-serif;
      font-size: 0.78rem; font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase;
      transition: background 0.2s, transform 0.2s;
    }
    .btn-primary:hover { background: var(--blanc); transform: translateY(-2px); }
    .btn-outline {
      display: inline-block; text-decoration: none;
      background: transparent; color: var(--blanc);
      padding: 0.85rem 2rem;
      font-family: 'Barlow Condensed', sans-serif;
      font-size: 0.78rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
      border: 1px solid rgba(255,255,255,0.2);
      transition: border-color 0.2s, color 0.2s, transform 0.2s;
    }
    .btn-outline:hover { border-color: var(--jaune); color: var(--jaune); transform: translateY(-2px); }
    .hero-scroll {
      position: absolute; bottom: 2.5rem; right: clamp(1.5rem, 4vw, 3.5rem);
      display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
      opacity: 0; animation: fadeUp 0.7s 0.8s ease forwards;
    }
    .hero-scroll span {
      font-family: 'Barlow Condensed', sans-serif; font-size: 0.62rem;
      letter-spacing: 0.2em; text-transform: uppercase; color: var(--gris);
      writing-mode: vertical-rl;
    }
    .scroll-line { width: 1px; height: 48px; background: linear-gradient(to bottom, var(--jaune), transparent); animation: pulse 2s infinite; }
    @keyframes pulse { 0%,100%{opacity:.3} 50%{opacity:1} }

    /* ── STATS ── */
    .stats-strip {
      background: var(--jaune); padding: 1.2rem clamp(1.5rem, 5vw, 4rem);
      display: flex; gap: 0; overflow-x: auto;
    }
    .stat-item {
      flex: 1; min-width: 110px;
      display: flex; flex-direction: column; align-items: center;
      padding: 0 1rem; position: relative;
    }
    .stat-item + .stat-item::before {
      content: ''; position: absolute; left: 0; top: 10%; bottom: 10%;
      width: 1px; background: rgba(10,10,10,0.15);
    }
    .stat-num { font-family: 'Barlow Condensed', sans-serif; font-size: clamp(1.8rem,4vw,2.8rem); font-weight: 900; color: var(--noir); line-height: 1; letter-spacing: -0.02em; }
    .stat-label { font-family: 'Barlow Condensed', sans-serif; font-size: 0.68rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: rgba(10,10,10,0.5); margin-top: 2px; }

    /* ── SECTION BASE ── */
    section { position: relative; z-index: 1; }
    #services, #apropos, #contact, #promotions, #avis { scroll-margin-top: 96px; }
    #realisations { scroll-margin-top: 130px; }
    .section-label {
      font-family: 'Barlow Condensed', sans-serif; font-size: 1.36rem; font-weight: 700;
      letter-spacing: 0.22em; text-transform: uppercase; color: var(--jaune);
      display: flex; align-items: center; gap: 0.8rem; margin-bottom: 1rem;
    }
    .section-label::before { content: ''; width: 24px; height: 2px; background: var(--jaune); flex-shrink: 0; }
    .section-title {
      font-family: 'Barlow Condensed', sans-serif;
      font-size: clamp(2.8rem, 6vw, 5.5rem); font-weight: 900;
      text-transform: uppercase; letter-spacing: -0.02em; line-height: 0.92; color: var(--blanc);
    }
    .section-title .dim { color: var(--gris); }

    /* ── SERVICES ── */
    #services { padding: clamp(5rem, 9vw, 8rem) clamp(1.5rem, 5vw, 4rem); }
    .services-layout { display: grid; grid-template-columns: 1fr 2fr; gap: 4rem; align-items: start; }
    .services-intro { position: sticky; top: 90px; }
    .services-intro .section-title { margin-bottom: 1.5rem; }
    .services-intro p { font-size: 0.9rem; line-height: 1.8; color: var(--gris-mid); max-width: 320px; }
    .services-list { display: flex; flex-direction: column; }
    .service-row {
      display: grid; grid-template-columns: 48px 1fr auto;
      align-items: center; gap: 1.5rem; padding: 1.1rem 0;
      border-bottom: 1px solid rgba(255,255,255,0.06);
      transition: background 0.3s;
    }
    .service-row:first-child { border-top: 1px solid rgba(255,255,255,0.06); }
    .service-row:hover { background: rgba(74,144,184,0.05); }
    .service-row:hover .service-arrow { color: var(--jaune); transform: translateX(4px); }
    .service-row:hover .service-name { color: var(--jaune); }
    .service-idx { font-family: 'Barlow Condensed', sans-serif; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.12em; color: var(--jaune); }
    .service-name { font-family: 'Barlow Condensed', sans-serif; font-size: 1.5rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.02em; color: var(--blanc); margin-bottom: 0.3rem; transition: color 0.2s; }
    .service-desc { font-size: 0.83rem; color: var(--gris-mid); line-height: 1.6; }
    .service-tags { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-top: 0.6rem; }
    .service-tag { font-family: 'Barlow Condensed', sans-serif; font-size: 0.6rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; padding: 0.2rem 0.6rem; border: 1px solid rgba(255,255,255,0.1); color: var(--gris-mid); }
    .service-arrow { color: var(--gris); font-size: 1.2rem; transition: color 0.2s, transform 0.2s; }

    /* ── RÉALISATIONS ── */
    #realisations { padding: max(clamp(5rem, 9vw, 8rem), 10vh) clamp(1.5rem, 5vw, 4rem); background: var(--noir-2); }
    .realisations-header { display: flex; justify-content: space-between; align-items: flex-end; flex-wrap: wrap; gap: 2rem; margin-bottom: 3rem; }
    .filter-bar { display: flex; gap: 0.3rem; flex-wrap: wrap; }
    .filter-btn {
      font-family: 'Barlow Condensed', sans-serif; font-size: 0.7rem; font-weight: 700;
      letter-spacing: 0.12em; text-transform: uppercase;
      padding: 0.4rem 0.9rem; background: transparent; color: var(--gris-mid);
      border: 1px solid rgba(255,255,255,0.1); cursor: pointer; transition: all 0.2s;
    }
    .filter-btn:hover, .filter-btn.active { background: var(--jaune); color: var(--noir); border-color: var(--jaune); }

    .projects-grid {
      display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
    }
    .project-card {
      cursor: pointer; overflow: hidden; position: relative;
      background: var(--noir-3); border: 1px solid rgba(74,144,184,0.1);
      transition: transform 0.35s ease;
      display: flex; flex-direction: column;
    }
    .project-card:hover { transform: translateY(-4px); }
    .project-img-wrap { overflow: hidden; aspect-ratio: 16/9; position: relative; flex-shrink: 0; }
    .project-img-wrap img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.6s, filter 0.4s; filter: grayscale(15%); }
    .project-card:hover .project-img-wrap img { transform: scale(1.06); filter: grayscale(0%); }
    .project-tag-pill { position: absolute; top: 0.8rem; left: 0.8rem; font-family: 'Barlow Condensed', sans-serif; font-size: 0.6rem; font-weight: 800; letter-spacing: 0.16em; text-transform: uppercase; background: var(--jaune); color: var(--noir); padding: 0.2rem 0.6rem; display: inline-block; }
    .project-photo-count { position: absolute; bottom: 0.7rem; right: 0.7rem; background: rgba(5,5,5,0.75); color: var(--gris-clair); font-family: 'Barlow Condensed', sans-serif; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.08em; padding: 0.15rem 0.5rem; }
    .project-body { padding: 1rem 1.2rem 1.3rem; flex: 1; display: flex; flex-direction: column; gap: 0.3rem; }
    .project-title-card { font-family: 'Barlow Condensed', sans-serif; font-size: 1.15rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.03em; color: var(--blanc); line-height: 1.1; }
    .project-desc-card { font-size: 0.78rem; color: var(--gris-mid); line-height: 1.5; flex: 1; }
    .project-year { font-family: 'Barlow Condensed', sans-serif; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.1em; color: var(--jaune); margin-top: 0.4rem; }
    .project-open-icon { position: absolute; top: 0.8rem; right: 0.8rem; width: 30px; height: 30px; background: rgba(5,5,5,0.7); border: 1px solid rgba(232,197,71,0.3); display: flex; align-items: center; justify-content: center; color: var(--jaune); font-size: 0.9rem; opacity: 0; transform: scale(0.7); transition: opacity 0.3s, transform 0.3s; }
    .project-card:hover .project-open-icon { opacity: 1; transform: scale(1); }

    /* ── LIGHTBOX ── */
    .lightbox { display: none; position: fixed; inset: 0; z-index: 999; background: rgba(5,5,5,0.97); align-items: center; justify-content: center; }
    .lightbox.open { display: flex; }
    .lightbox-img { max-width: 88vw; max-height: 82vh; object-fit: contain; }
    .lightbox-caption { position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%); font-family: 'Barlow Condensed', sans-serif; font-size: 0.8rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--gris-mid); white-space: nowrap; }
    .lightbox-close { position: absolute; top: 1.5rem; right: 2rem; background: none; border: 1px solid rgba(255,255,255,0.15); color: var(--gris-clair); font-size: 1rem; cursor: pointer; width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; transition: border-color 0.2s, color 0.2s; }
    .lightbox-close:hover { border-color: var(--jaune); color: var(--jaune); }
    .lightbox-nav { position: absolute; top: 50%; transform: translateY(-50%); background: none; border: 1px solid rgba(255,255,255,0.12); color: var(--gris-clair); font-size: 1.4rem; cursor: pointer; width: 48px; height: 48px; display: flex; align-items: center; justify-content: center; transition: all 0.2s; }
    .lightbox-nav:hover { border-color: var(--jaune); color: var(--jaune); }
    .lightbox-prev { left: 1.5rem; }
    .lightbox-next { right: 1.5rem; }

    /* ── À PROPOS ── */
    #apropos { padding: clamp(3rem,6vw,5rem) clamp(1.5rem, 5vw, 4rem); display: flex; flex-direction: column; justify-content: center; }
    .about-grid { display: grid; grid-template-columns: 1fr 2.5fr; gap: clamp(2rem, 4vw, 4rem); align-items: center; }
    .about-text { align-self: center; }
    .about-visual { position: relative; }
    .about-img-box { aspect-ratio: 3/4; max-height: 380px; background: var(--noir-3); position: relative; overflow: hidden; }
    .about-img-box::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(74,144,184,0.12) 0%, transparent 60%); }
    .about-img-inner { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; }
    .about-img-inner svg { opacity: 0.05; }
    .about-accent-box { position: absolute; bottom: -2rem; right: -2rem; background: var(--jaune); padding: 2rem 2.5rem; z-index: 2; }
    .about-accent-num { font-family: 'Barlow Condensed', sans-serif; font-size: 3rem; font-weight: 900; color: var(--noir); line-height: 1; }
    .about-accent-label { font-family: 'Barlow Condensed', sans-serif; font-size: 0.7rem; font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase; color: rgba(10,10,10,0.55); }
    .about-corner { position: absolute; top: -1.5rem; left: -1.5rem; width: 80px; height: 80px; border-top: 3px solid var(--jaune); border-left: 3px solid var(--jaune); }
    .about-text .section-title { margin-bottom: max(0.5rem, 1.5vh); }
    .about-text p { font-size: 0.92rem; line-height: 1.6; color: var(--gris-mid); margin-bottom: max(0.3rem, 0.8vh); }
    .about-values { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin: max(0.5rem, 1vh) 0; border-top: 1px solid rgba(255,255,255,0.07); }
    .about-value { padding: max(0.3rem, 0.8vh) 0; border-bottom: 1px solid rgba(255,255,255,0.07); display: flex; flex-direction: column; gap: 0.3rem; }
    .about-value:nth-child(odd) { padding-right: 1.5rem; border-right: 1px solid rgba(255,255,255,0.07); }
    .about-value:nth-child(even) { padding-left: 1.5rem; }
    .about-value-title { font-family: 'Barlow Condensed', sans-serif; font-size: 0.85rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.08em; color: var(--jaune); }
    .about-value-text { font-size: 0.8rem; color: var(--gris-mid); line-height: 1.5; }

    /* ── ABOUT STATS BAND ── */
    .about-stats-band {
      display: grid; grid-template-columns: repeat(4, 1fr);
      background: var(--jaune);
      margin: clamp(2rem, 4vw, 4rem) calc(-1 * clamp(1.5rem, 5vw, 4rem));
      padding: 2.5rem clamp(1.5rem, 5vw, 4rem);
    }
    .about-stat { text-align: center; }
    .about-stat-num {
      font-family: 'Barlow Condensed', sans-serif; font-size: clamp(2rem, 4vw, 3rem);
      font-weight: 900; color: var(--noir); letter-spacing: -0.01em; line-height: 1;
    }
    .about-stat-label {
      font-family: 'Barlow Condensed', sans-serif; font-size: 0.8rem; font-weight: 700;
      text-transform: uppercase; letter-spacing: 0.1em; color: rgba(0,0,0,0.6);
      margin-top: 0.3rem;
    }
    @media (max-width: 600px) { .about-stats-band { grid-template-columns: 1fr 1fr; gap: 1.5rem 0; } }

    /* ── ENGAGEMENTS ── */
    .engagements-grid {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem;
      margin-top: clamp(2rem, 4vw, 4rem);
      padding-top: clamp(2rem, 4vw, 4rem);
      border-top: 1px solid rgba(255,255,255,0.07);
    }
    .engagement-card {
      display: flex; flex-direction: column; align-items: center; text-align: center;
      padding: 2rem 1.5rem; background: var(--noir-3);
      border: 1px solid rgba(74,144,184,0.1);
      border-top: 3px solid var(--jaune);
      transition: transform 0.3s;
    }
    .engagement-card:hover { transform: translateY(-4px); }
    .engagement-icon {
      width: 56px; height: 56px; background: rgba(232,197,71,0.1);
      display: flex; align-items: center; justify-content: center;
      margin-bottom: 1.2rem; color: var(--jaune);
    }
    .engagement-icon svg { width: 28px; height: 28px; }
    .engagement-title {
      font-family: 'Barlow Condensed', sans-serif; font-size: 1.1rem; font-weight: 800;
      text-transform: uppercase; letter-spacing: 0.08em; color: var(--blanc);
      margin-bottom: 0.7rem;
    }
    .engagement-text { font-size: 0.82rem; color: var(--gris-mid); line-height: 1.65; }

    /* ── POURQUOI NOUS CHOISIR ── */
    .pourquoi-layout { display: grid; grid-template-columns: 260px 1fr; gap: 3rem; align-items: start; }
    .pourquoi-tabs { display: flex; flex-direction: column; gap: 0; border-left: 2px solid rgba(255,255,255,0.07); }
    .pourquoi-tab { background: none; border: none; text-align: left; padding: 1rem 1.5rem; font-family: 'Barlow Condensed', sans-serif; font-size: 1rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--gris-mid); cursor: pointer; transition: color 0.2s, border-color 0.2s; border-left: 3px solid transparent; margin-left: -2px; }
    .pourquoi-tab:hover { color: var(--blanc); }
    .pourquoi-tab.active { color: var(--jaune); border-left-color: var(--jaune); }
    .pourquoi-panel { display: none; }
    .pourquoi-panel.active { display: block; }
    .pourquoi-panel p { font-size: 0.95rem; color: var(--gris-clair); line-height: 1.8; }
    @media (max-width: 768px) { .pourquoi-layout { grid-template-columns: 1fr; } .pourquoi-tabs { flex-direction: row; border-left: none; border-bottom: 2px solid rgba(255,255,255,0.07); } .pourquoi-tab { border-left: none; border-bottom: 3px solid transparent; margin-left: 0; margin-bottom: -2px; } .pourquoi-tab.active { border-left-color: transparent; border-bottom-color: var(--jaune); } }

    /* ── CONTACT ── */
    #contact { padding: clamp(5rem, 9vw, 8rem) clamp(1.5rem, 5vw, 4rem); background: var(--noir-2); }
    .contact-grid { display: grid; grid-template-columns: 1fr 1.8fr; gap: clamp(3rem, 6vw, 6rem); }
    .contact-left .section-title { margin-bottom: 2.5rem; }
    .contact-info-items { display: flex; flex-direction: column; }
    .contact-info-item { display: flex; align-items: flex-start; gap: 1rem; padding: 1.2rem 0; border-bottom: 1px solid rgba(255,255,255,0.06); }
    .contact-info-item:first-child { border-top: 1px solid rgba(255,255,255,0.06); }
    .contact-info-icon { width: 36px; height: 36px; flex-shrink: 0; background: rgba(74,144,184,0.1); display: flex; align-items: center; justify-content: center; color: var(--jaune); }
    .contact-info-icon svg { width: 16px; height: 16px; }
    .contact-info-label { font-family: 'Barlow Condensed', sans-serif; font-size: 0.65rem; font-weight: 800; letter-spacing: 0.16em; text-transform: uppercase; color: var(--jaune); margin-bottom: 3px; }
    .contact-info-value { font-size: 0.88rem; color: var(--gris-clair); line-height: 1.5; }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.8rem; }
    .form-group { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: 0.8rem; }
    .form-group label { font-family: 'Barlow Condensed', sans-serif; font-size: 0.65rem; font-weight: 800; letter-spacing: 0.16em; text-transform: uppercase; color: var(--jaune); }
    .form-group input, .form-group select, .form-group textarea { font-family: 'Barlow', sans-serif; font-size: 0.88rem; color: var(--blanc); background: var(--noir-4); border: 1px solid rgba(255,255,255,0.08); padding: 0.8rem 1rem; width: 100%; outline: none; transition: border-color 0.2s; -webkit-appearance: none; }
    .form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--jaune); }
    .form-group input::placeholder, .form-group textarea::placeholder { color: var(--gris); }
    .form-group select option { background: var(--noir-3); }
    .form-group textarea { resize: vertical; min-height: 120px; }
    .form-submit { width: 100%; padding: 1rem; background: var(--jaune); color: var(--noir); border: none; cursor: pointer; font-family: 'Barlow Condensed', sans-serif; font-size: 0.85rem; font-weight: 900; letter-spacing: 0.16em; text-transform: uppercase; transition: background 0.2s, transform 0.2s; margin-top: 0.5rem; }
    .form-submit:hover { background: var(--blanc); transform: translateY(-2px); }
    .form-note { font-size: 0.72rem; color: var(--gris); margin-top: 0.8rem; line-height: 1.5; }

    /* ── FOOTER ── */
    footer { background: #151B22; padding: 2rem clamp(1.5rem, 5vw, 4rem); display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 1rem; border-top: 1px solid rgba(74,144,184,0.15); }
    .footer-logo { font-family: 'Barlow Condensed', sans-serif; font-weight: 900; font-size: 1rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--blanc); }
    .footer-logo span { color: var(--jaune); }
    .footer-sub { font-family: 'Barlow Condensed', sans-serif; font-size: 0.62rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--gris); margin-top: 2px; }
    .footer-info { font-size: 0.75rem; color: var(--gris); line-height: 1.7; text-align: center; }
    .footer-legal { font-size: 0.7rem; color: var(--gris); text-align: right; line-height: 1.7; }

    /* ── ANIMATIONS ── */
    @keyframes fadeUp { from { opacity:0; transform:translateY(28px); } to { opacity:1; transform:none; } }
    .reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.75s ease, transform 0.75s ease; }
    .reveal.visible { opacity: 1; transform: none; }
    .reveal-d1 { transition-delay: 0.1s; }
    .reveal-d2 { transition-delay: 0.2s; }

    /* ── RESPONSIVE ── */
    @media (max-width: 1024px) {
      .services-layout { grid-template-columns: 1fr; gap: 2.5rem; }
      .services-intro { position: static; }
      .projects-grid { grid-template-columns: 1fr 1fr; }
      .project-card:nth-child(n) { grid-column: span 1; }
      .about-grid { grid-template-columns: 1fr; }
      .about-visual { display: none; }
      .engagements-grid { grid-template-columns: 1fr 1fr; }
      .contact-grid { grid-template-columns: 1fr; }
    }
    @media (max-width: 768px) {
      .nav-links { display: none; }
      .nav-links.open { display: flex; flex-direction: column; position: absolute; top: 96px; left: 0; right: 0; background: var(--noir-2); padding: 1.5rem 2rem; border-bottom: 1px solid rgba(74,144,184,0.15); gap: 1.2rem; }
      .burger { display: flex; }
      .projects-grid { grid-template-columns: 1fr; }
      .engagements-grid { grid-template-columns: 1fr; }
      .form-grid { grid-template-columns: 1fr; }
      .about-values { grid-template-columns: 1fr; }
      .about-value:nth-child(odd) { border-right: none; padding-right: 0; }
      .about-value:nth-child(even) { padding-left: 0; }
    }
    @media (max-width: 480px) {
      .hero-btns { flex-direction: column; }
      .hero-sub { flex-direction: column; align-items: flex-start; gap: 1.5rem; }
      .realisations-header { flex-direction: column; align-items: flex-start; }
      .hero-une { display: none; }
    }

    /* ── SCROLL PROGRESS BAR ── */
    #scroll-progress {
      position: fixed; top: 0; left: 0; height: 3px; z-index: 9999;
      background: var(--jaune); width: 0%; transition: width 0.1s linear;
    }

    /* ── BACK TO TOP ── */
    #back-to-top {
      position: fixed; bottom: 2rem; right: 2rem; z-index: 999;
      width: 44px; height: 44px; background: var(--jaune); color: var(--noir);
      border: none; cursor: pointer; display: flex; align-items: center; justify-content: center;
      font-size: 1.2rem; opacity: 0; transform: translateY(10px);
      transition: opacity 0.3s, transform 0.3s;
    }
    #back-to-top.visible { opacity: 1; transform: none; }
    #back-to-top:hover { background: var(--blanc); }

    /* ── PHONE FLOAT ── */
    #phone-float {
      position: fixed; bottom: 2rem; left: 2rem; z-index: 999;
      display: flex; align-items: center; gap: 0.6rem;
      background: var(--noir-3); border: 1px solid rgba(232,197,71,0.3);
      padding: 0.6rem 1rem; opacity: 0; transform: translateY(10px);
      transition: opacity 0.3s, transform 0.3s;
    }
    #phone-float.visible { opacity: 1; transform: none; }
    #phone-float a { color: var(--jaune); font-family: 'Barlow Condensed', sans-serif; font-size: 0.9rem; font-weight: 800; letter-spacing: 0.06em; text-decoration: none; }
    #phone-float svg { width: 14px; height: 14px; color: var(--jaune); flex-shrink: 0; }

    /* ── CTA RÉALISATIONS ── */
    .realisations-cta {
      margin-top: 3rem; padding: 2.5rem; background: var(--noir-3);
      border: 1px solid rgba(232,197,71,0.2); border-left: 4px solid var(--jaune);
      display: flex; align-items: center; justify-content: space-between; gap: 2rem; flex-wrap: wrap;
    }
    .realisations-cta-text { font-family: 'Barlow Condensed', sans-serif; font-size: 1.3rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.04em; color: var(--blanc); }
    .realisations-cta-sub { font-size: 0.85rem; color: var(--gris-mid); margin-top: 0.3rem; }

    /* ── NAV ACTIVE ── */
    .nav-links a.active { color: var(--jaune); }

    /* ── FILTRE MOBILE SCROLL ── */
    @media (max-width: 768px) {
      .filter-bar { overflow-x: auto; flex-wrap: nowrap; padding-bottom: 0.5rem; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
      .filter-bar::-webkit-scrollbar { display: none; }
      .filter-btn { flex-shrink: 0; }
    }