*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    img { height: auto; max-width: 100%; }

    :root {
      --black: #0a0a0a;
      --dark: #111111;
      --gray: #888;
      --light-gray: #f5f4f0;
      --white: #ffffff;
      --accent: #c8a96e;
      --text: #1a1a1a;
    }

    html {
      scroll-behavior: smooth;
      overflow-x: hidden;
    }

    body {
      font-family: 'Inter', sans-serif;
      background: var(--white);
      color: var(--text);
      min-height: 100vh;
    }

    /* ── NAV ── */
    nav {
      position: fixed;
      top: 0; left: 0; right: 0;
      z-index: 1000;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 20px 48px;
      transition: background 0.3s, box-shadow 0.3s;
    }
    nav.scrolled {
      background: rgba(255,255,255,0.97);
      box-shadow: 0 1px 0 rgba(0,0,0,0.08);
    }
    .nav-logo {
      font-family: 'Playfair Display', serif;
      font-size: 22px;
      font-weight: 700;
      color: var(--white);
      text-decoration: none;
      letter-spacing: 0.5px;
      transition: color 0.3s;
    }
    nav.scrolled .nav-logo { color: var(--black); }
    .nav-links {
      display: flex;
      gap: 36px;
      list-style: none !important;
    }
    .nav-links a {
      font-size: 13px;
      font-weight: 500;
      letter-spacing: 0.8px;
      text-transform: uppercase;
      color: rgba(255,255,255,0.85);
      text-decoration: none;
      transition: color 0.2s;
    }
    nav.scrolled .nav-links a { color: var(--gray); }
    .nav-links a:hover,
    nav.scrolled .nav-links a:hover { color: var(--accent); }
    .nav-social {
      display: flex;
      gap: 14px;
      align-items: center;
    }
    .nav-social a {
      color: rgba(255,255,255,0.6);
      transition: color 0.2s;
    }
    nav.scrolled .nav-social a { color: var(--gray); }
    .nav-social a:hover { color: var(--accent); }
    .nav-lang { display: flex; gap: 8px; }
    .nav-lang a {
      font-size: 12px;
      font-weight: 500;
      letter-spacing: 0.8px;
      text-transform: uppercase;
      color: rgba(255,255,255,0.6);
      text-decoration: none;
      border: 1px solid rgba(255,255,255,0.3);
      padding: 5px 12px;
      border-radius: 20px;
      transition: all 0.2s;
    }
    nav.scrolled .nav-lang a { color: var(--gray); border-color: #ccc; }
    .nav-lang a:hover { color: var(--accent); border-color: var(--accent); }
    .nav-mobile-toggle { display: none; cursor: pointer; }
    .nav-mobile-toggle span {
      display: block; width: 24px; height: 2px;
      background: white; margin: 5px 0; transition: background 0.3s;
    }
    nav.scrolled .nav-mobile-toggle span { background: var(--black); }

    /* ── HERO ── */
    #hero {
      position: relative;
      height: 100vh;
      min-height: 600px;
      background: var(--black);
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      overflow: hidden;
    }
    .hero-bg {
      position: absolute;
      inset: 0;
      background: url('/assets/img/portfolio/cartoon-05-1.webp') center/cover no-repeat;
      opacity: 0.18;
      filter: grayscale(80%);
    }
    .hero-content {
      position: relative;
      z-index: 2;
      padding: 0 24px;
    }
    .hero-eyebrow {
      font-size: 11px;
      font-weight: 600;
      letter-spacing: 3px;
      text-transform: uppercase;
      color: var(--accent);
      margin-bottom: 20px;
    }
    .hero-name {
      font-family: 'Playfair Display', serif;
      font-size: clamp(52px, 9vw, 100px);
      font-weight: 700;
      color: var(--white);
      line-height: 1.05;
      margin-bottom: 20px;
    }
    .hero-subtitle {
      font-size: 15px;
      font-weight: 300;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: rgba(255,255,255,0.6);
      margin-bottom: 48px;
    }
    .hero-cta {
      display: inline-flex;
      gap: 16px;
      flex-wrap: wrap;
      justify-content: center;
    }
    .hero-services {
      margin-top: 20px;
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 6px 10px;
      font-size: 12px;
      letter-spacing: 1px;
      text-transform: uppercase;
      color: rgba(255,255,255,0.55);
    }
    .hero-services a {
      color: inherit;
      text-decoration: none;
      border-bottom: 1px solid transparent;
      padding-bottom: 1px;
      transition: color 0.2s, border-color 0.2s;
    }
    .hero-services a:hover { color: var(--accent); border-color: var(--accent); }
    .hero-services span { opacity: 0.4; }
    .btn-primary {
      display: inline-block;
      background: var(--accent);
      color: var(--black);
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 1px;
      text-transform: uppercase;
      padding: 14px 32px;
      text-decoration: none;
      border-radius: 2px;
      transition: opacity 0.2s;
    }
    .btn-primary:hover { opacity: 0.85; }
    .btn-outline {
      display: inline-block;
      border: 1px solid rgba(255,255,255,0.4);
      color: var(--white);
      font-size: 12px;
      font-weight: 500;
      letter-spacing: 1px;
      text-transform: uppercase;
      padding: 14px 32px;
      text-decoration: none;
      border-radius: 2px;
      transition: all 0.2s;
    }
    .btn-outline:hover { border-color: var(--accent); color: var(--accent); }
    .hero-scroll {
      position: absolute;
      bottom: 36px;
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 8px;
      color: rgba(255,255,255,0.4);
      font-size: 10px;
      letter-spacing: 2px;
      text-transform: uppercase;
    }
    .hero-scroll::after {
      content: '';
      display: block;
      width: 1px;
      height: 40px;
      background: rgba(255,255,255,0.2);
      animation: scrollDown 1.5s ease-in-out infinite;
    }
    @keyframes scrollDown {
      0% { transform: scaleY(0); transform-origin: top; }
      50% { transform: scaleY(1); transform-origin: top; }
      50.01% { transform: scaleY(1); transform-origin: bottom; }
      100% { transform: scaleY(0); transform-origin: bottom; }
    }

    /* ── SECTIONS ── */
    section { padding: 100px 0; position: relative; }
    .container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

    .section-label {
      font-size: 11px;
      font-weight: 600;
      letter-spacing: 3px;
      text-transform: uppercase;
      color: var(--accent);
      margin-bottom: 16px;
    }
    .section-title {
      font-family: 'Playfair Display', serif;
      font-size: clamp(32px, 4vw, 48px);
      font-weight: 700;
      line-height: 1.2;
      margin-bottom: 24px;
    }
    .section-lead {
      font-size: 16px;
      line-height: 1.8;
      color: #555;
      max-width: 600px;
    }

    /* ── ABOUT ── */
    #about {
      background: var(--light-gray);
    }
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 80px;
      align-items: center;
    }
    .about-photo {
      position: relative;
    }
    .about-photo img {
      width: 100%;
      aspect-ratio: 3/4;
      object-fit: cover;
      display: block;
    }
    .about-photo::before {
      content: '';
      position: absolute;
      inset: -16px;
      border: 1px solid var(--accent);
      opacity: 0.4;
      z-index: 0;
    }
    .about-photo img { position: relative; z-index: 1; }
    .about-text p {
      font-size: 15px;
      line-height: 1.85;
      color: #444;
      margin-bottom: 20px;
    }
    .about-text p:last-child { margin-bottom: 0; }
    .about-text a { color: var(--accent); text-decoration: none; }
    .about-text a:hover { text-decoration: underline; }
    .about-stats {
      display: flex;
      gap: 40px;
      margin-top: 40px;
      padding-top: 40px;
      border-top: 1px solid #ddd;
    }
    .stat-num {
      font-family: 'Playfair Display', serif;
      font-size: 40px;
      font-weight: 700;
      color: var(--black);
      line-height: 1;
    }
    .stat-label {
      font-size: 12px;
      font-weight: 500;
      color: var(--gray);
      letter-spacing: 0.5px;
      margin-top: 6px;
    }

    /* ── PORTFOLIO ── */
    #portfolio { background: var(--light-gray); }
    .filters {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }
    .filter-btn {
      font-size: 12px;
      font-weight: 500;
      letter-spacing: 0.8px;
      text-transform: uppercase;
      padding: 8px 20px;
      border: 1px solid #ddd;
      background: transparent;
      color: var(--gray);
      cursor: pointer;
      border-radius: 2px;
      transition: all 0.2s;
    }
    .filter-btn:hover,
    .filter-btn.active {
      background: var(--black);
      border-color: var(--black);
      color: var(--white);
    }
    .portfolio-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
    }
    .portfolio-item {
      position: relative;
      overflow: hidden;
      aspect-ratio: 1;
      cursor: pointer;
      background: #f0f0f0;
    }
    .portfolio-item img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.5s ease;
    }
    .portfolio-item:hover img { transform: scale(1.06); }
    .portfolio-item.portfolio-hidden { display: none !important; }
    .portfolio-more-wrap { text-align: center; margin-top: 32px; }
    .portfolio-more-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 12px 28px;
      background: transparent;
      color: var(--text);
      font-family: 'Inter', sans-serif;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 1.5px;
      text-transform: uppercase;
      border: 1px solid var(--text);
      border-radius: 4px;
      cursor: pointer;
      transition: background 0.2s, color 0.2s;
    }
    .portfolio-more-btn:hover { background: var(--text); color: var(--white); }
    .portfolio-overlay {
      position: absolute;
      inset: 0;
      background: rgba(10,10,10,0.7);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      opacity: 0;
      transition: opacity 0.3s;
      gap: 8px;
    }
    .portfolio-item:hover .portfolio-overlay { opacity: 1; }
    .portfolio-overlay h3 {
      font-family: 'Playfair Display', serif;
      font-size: 18px;
      color: var(--white);
      font-weight: 400;
    }
    .portfolio-overlay p {
      font-size: 12px;
      letter-spacing: 1px;
      text-transform: uppercase;
      color: var(--accent);
    }
    .portfolio-overlay .zoom-icon {
      width: 40px; height: 40px;
      border: 1px solid rgba(255,255,255,0.4);
      border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      color: white;
      font-size: 18px;
      margin-top: 8px;
      text-decoration: none;
      transition: border-color 0.2s;
    }
    .portfolio-overlay .zoom-icon:hover { border-color: var(--accent); color: var(--accent); }

    .hidden { display: none; }

    /* ── LIVRES ── */
    #books { background: var(--dark); }
    #books .section-title { color: var(--white); }
    #books .section-label { color: var(--accent); }
    #books .section-lead { color: rgba(255,255,255,0.5); }
    .books-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 48px;
    }
    .book-card img {
      width: 100%;
      aspect-ratio: 3/4;
      object-fit: cover;
      display: block;
      filter: grayscale(20%);
      transition: filter 0.3s, transform 0.3s;
    }
    .book-card:hover img { filter: grayscale(0); transform: translateY(-4px); }
    .book-card-title {
      font-size: 13px;
      font-weight: 500;
      color: rgba(255,255,255,0.7);
      margin-top: 12px;
      text-align: center;
    }

    /* ── EXPOSITIONS ── */
    #exhibitions { background: var(--light-gray); }
    .timeline {
      position: relative;
      max-width: 700px;
      margin: 0 auto;
      padding-top: 16px;
    }
    .timeline::before {
      content: '';
      position: absolute;
      left: 80px;
      top: 0; bottom: 0;
      width: 1px;
      background: #ddd;
    }
    .timeline-item {
      display: flex;
      gap: 40px;
      align-items: flex-start;
      margin-bottom: 40px;
    }
    .timeline-year {
      font-family: 'Playfair Display', serif;
      font-size: 20px;
      font-weight: 700;
      color: var(--accent);
      min-width: 80px;
      text-align: right;
      padding-top: 2px;
    }
    .timeline-dot {
      width: 10px; height: 10px;
      background: var(--accent);
      border-radius: 50%;
      margin-top: 6px;
      flex-shrink: 0;
      position: relative;
      z-index: 1;
    }
    .timeline-body p {
      font-size: 15px;
      line-height: 1.7;
      color: #444;
    }

    /* ── BOOK & CV ── */
    #book-cv { background: var(--white); }
    .doc-cards {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      margin-top: 48px;
    }
    .doc-card {
      background: white;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 4px 24px rgba(0,0,0,0.07);
      transition: transform 0.3s, box-shadow 0.3s;
    }
    .doc-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 40px rgba(0,0,0,0.12);
    }
    .doc-card-visual {
      position: relative;
      height: 320px;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      background: var(--light-gray);
    }
    .doc-card-visual img {
      height: 100%;
      width: 100%;
      object-fit: contain;
      padding: 24px;
      transition: transform 0.3s;
    }
    .doc-card:hover .doc-card-visual img {
      transform: scale(1.03);
    }
    /* PDF overlay */
    .pdf-overlay {
      display: none;
      position: fixed;
      inset: 0;
      z-index: 2000;
      background: rgba(10,10,10,0.85);
      align-items: center;
      justify-content: center;
    }
    .pdf-overlay.active { display: flex; }
    .pdf-overlay-inner {
      position: relative;
      width: 50%;
      height: 90vh;
      background: white;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 20px 60px rgba(0,0,0,0.5);
    }
    .pdf-overlay-inner object {
      width: 100%;
      height: 100%;
    }
    .pdf-overlay-close {
      position: absolute;
      top: 12px;
      right: 16px;
      background: var(--black);
      color: white;
      border: none;
      width: 36px;
      height: 36px;
      border-radius: 50%;
      font-size: 18px;
      cursor: pointer;
      z-index: 2001;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: background 0.2s;
    }
    .pdf-overlay-close:hover { background: var(--accent); color: var(--black); }
    @media (max-width: 900px) {
      .pdf-overlay-inner { width: 90%; height: 80vh; }
    }
    .doc-card-label {
      position: absolute;
      top: 20px;
      right: 20px;
      background: var(--accent);
      color: var(--black);
      font-size: 10px;
      font-weight: 700;
      letter-spacing: 1.5px;
      text-transform: uppercase;
      padding: 4px 10px;
      border-radius: 2px;
      z-index: 2;
    }
    .doc-card-body {
      padding: 20px 24px 24px;
    }
    .doc-card-title {
      font-family: 'Playfair Display', serif;
      font-size: 20px;
      font-weight: 700;
      color: var(--black);
      margin-bottom: 4px;
    }
    .doc-card-subtitle {
      font-size: 12px;
      color: var(--gray);
      margin-bottom: 20px;
    }
    .doc-card-actions {
      display: flex;
      gap: 10px;
    }
    .doc-btn {
      flex: 1;
      font-size: 13px;
      font-weight: 500;
      letter-spacing: 0.4px;
      padding: 11px 0;
      border-radius: 4px;
      text-decoration: none;
      text-align: center;
      border: 1px solid #ddd;
      color: var(--black);
      background: white;
      transition: all 0.2s;
    }
    .doc-btn:hover { border-color: var(--accent); color: var(--accent); }
    .doc-btn.primary { background: var(--black); color: white; border-color: var(--black); }
    .doc-btn.primary:hover { background: var(--accent); border-color: var(--accent); color: var(--black); }
    @media (max-width: 700px) {
      .doc-cards { grid-template-columns: 1fr; }
    }

    /* ── COURS / SERVICES ── */
    #cours { background: var(--white); }
    #cours .section-label { color: var(--accent); }

    .cours-tabs {
      display: flex;
      gap: 4px;
      border-bottom: 2px solid #eee;
      margin-bottom: 48px;
    }
    .cours-tab-btn {
      background: none;
      border: none;
      padding: 14px 28px;
      font-family: 'Inter', sans-serif;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 1px;
      text-transform: uppercase;
      color: var(--gray);
      cursor: pointer;
      border-bottom: 2px solid transparent;
      margin-bottom: -2px;
      transition: color 0.2s, border-color 0.2s;
    }
    .cours-tab-btn:hover { color: var(--text); }
    .cours-tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }
    .cours-tab-panel { display: none; }
    .cours-tab-panel.active { display: block; }

    /* Tab: Teacher */
    .prof-grid {
      display: grid;
      grid-template-columns: 300px 1fr;
      gap: 60px;
      align-items: start;
    }
    .prof-photo {
      width: 100%;
      aspect-ratio: 1;
      object-fit: cover;
      border-radius: 4px;
      filter: grayscale(20%);
    }
    .prof-name {
      font-family: 'Playfair Display', serif;
      font-size: 32px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .prof-title {
      font-size: 13px;
      color: var(--accent);
      letter-spacing: 2px;
      text-transform: uppercase;
      margin-bottom: 24px;
    }
    .prof-bio {
      font-size: 16px;
      line-height: 1.8;
      color: #444;
      margin-bottom: 20px;
    }
    .prof-superprof {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 1px;
      text-transform: uppercase;
      color: var(--text);
      text-decoration: none;
      border-bottom: 1px solid var(--accent);
      padding-bottom: 2px;
      transition: color 0.2s;
    }
    .prof-superprof:hover { color: var(--accent); }
    .prof-cta {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 24px;
      margin: 8px 16px 20px 0;
      background: var(--black);
      color: var(--white);
      font-family: 'Inter', sans-serif;
      font-size: 14px;
      font-weight: 600;
      letter-spacing: 1px;
      text-transform: uppercase;
      border: none;
      border-radius: 4px;
      cursor: pointer;
      transition: background 0.2s;
    }
    .prof-cta:hover { background: var(--accent); color: var(--black); }
    .prof-cta sup { font-size: 0.7em; }

    /* Tab: The classes */
    .niveau-grid {
      display: grid;
      grid-template-columns: 300px 1fr;
      gap: 60px;
      align-items: start;
      margin-bottom: 48px;
    }
    .niveau-photo {
      width: 100%;
      aspect-ratio: 1;
      object-fit: cover;
      border-radius: 4px;
      filter: grayscale(20%);
    }
    .niveau-tabs {
      display: flex;
      gap: 8px;
      margin-bottom: 36px;
    }
    .niveau-btn {
      padding: 10px 24px;
      border: 1px solid #ddd;
      background: none;
      font-family: 'Inter', sans-serif;
      font-size: 13px;
      font-weight: 500;
      cursor: pointer;
      border-radius: 2px;
      color: var(--gray);
      transition: all 0.2s;
    }
    .niveau-btn:hover { border-color: var(--accent); color: var(--text); }
    .niveau-btn.active { background: var(--black); color: var(--white); border-color: var(--black); }
    .niveau-panel { display: none; }
    .niveau-panel.active { display: block; }
    .niveau-desc {
      font-size: 16px;
      line-height: 1.8;
      color: #444;
      max-width: 700px;
      margin-bottom: 48px;
    }

    /* Cours gallery */
    .cours-gallery {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
      margin-bottom: 56px;
    }
    .cours-gallery-placeholder {
      aspect-ratio: 1;
      background: var(--light-gray);
      border-radius: 4px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #ccc;
      font-size: 12px;
      letter-spacing: 1px;
      text-transform: uppercase;
    }
    .cours-carousel {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 56px;
    }
    .carousel-btn {
      flex-shrink: 0;
      width: 40px; height: 40px;
      border: 1px solid #ddd;
      background: none;
      border-radius: 50%;
      font-size: 18px;
      cursor: pointer;
      color: var(--text);
      transition: all .2s;
      display: flex; align-items: center; justify-content: center;
    }
    .carousel-btn:hover { border-color: var(--accent); color: var(--accent); }
    .carousel-btn:disabled { opacity: 0.3; cursor: default; }
    .cours-carousel .cours-gallery { margin-bottom: 0; flex: 1; }
    .visually-hidden {
      position: absolute !important;
      width: 1px; height: 1px;
      padding: 0; margin: -1px;
      overflow: hidden;
      clip: rect(0, 0, 0, 0);
      white-space: nowrap;
      border: 0;
    }
    .cours-gallery img {
      width: 100%;
      aspect-ratio: 1;
      object-fit: cover;
      border-radius: 4px;
    }

    /* Tab: Sign up */
    .inscription-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: start;
    }
    .inscription-info h3 {
      font-family: 'Playfair Display', serif;
      font-size: 28px;
      margin-bottom: 16px;
    }
    .inscription-info p {
      font-size: 15px;
      line-height: 1.8;
      color: #555;
      margin-bottom: 12px;
    }
    .inscription-detail {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      color: #444;
      margin-bottom: 10px;
    }
    .inscription-detail span:first-child {
      font-size: 18px;
    }
    .tarifs {
      margin-top: 32px;
      border: 1px solid #eee;
      border-radius: 6px;
      overflow: hidden;
    }
    .tarifs-title {
      background: var(--black);
      color: var(--white);
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 2px;
      text-transform: uppercase;
      padding: 10px 20px;
    }
    .tarif-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 14px 20px;
      border-bottom: 1px solid #f0f0f0;
      font-size: 14px;
    }
    .tarif-item:last-child { border-bottom: none; }
    .tarif-label { color: #444; }
    .tarif-price { font-weight: 700; color: var(--text); }
    .tarif-offert {
      background: #fff8ee;
      color: var(--accent);
      font-weight: 700;
    }
    .tarif-offert .tarif-price { color: var(--accent); }
    .tarif-mode-link {
      color: var(--accent);
      text-decoration: none;
      border-bottom: 1px dashed var(--accent);
      padding-bottom: 1px;
      font-weight: 500;
      cursor: pointer;
      transition: color 0.2s;
    }
    .tarif-mode-link:hover { color: var(--text); border-bottom-style: solid; }
    .tarifs[data-mode="online"] .tarif-item[data-mode-item="onsite"] { display: none !important; }
    .tarifs[data-mode="onsite"] .tarif-item[data-mode-item="online"] { display: none !important; }
    .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
    .form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
    .form-group label {
      font-size: 11px;
      font-weight: 600;
      letter-spacing: 1.5px;
      text-transform: uppercase;
      color: var(--gray);
    }
    .form-group input,
    .form-group select,
    .form-group textarea {
      padding: 12px 14px;
      border: 1px solid #ddd;
      border-radius: 4px;
      font-family: 'Inter', sans-serif;
      font-size: 14px;
      color: var(--text);
      background: var(--white);
      transition: border-color 0.2s;
      outline: none;
    }
    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus { border-color: var(--accent); }
    .form-group textarea { resize: vertical; min-height: 100px; }
    .form-submit {
      width: 100%;
      padding: 14px;
      background: var(--black);
      color: var(--white);
      border: none;
      border-radius: 4px;
      font-family: 'Inter', sans-serif;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 1.5px;
      text-transform: uppercase;
      cursor: pointer;
      transition: background 0.2s;
      margin-top: 8px;
    }
    .form-submit:hover { background: var(--accent); color: var(--black); }
    .label-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
    .file-input { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
    .file-clip {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 26px;
      height: 26px;
      border-radius: 50%;
      background: #f4f4f4;
      cursor: pointer;
      font-size: 13px;
      transition: background 0.2s, transform 0.15s;
      user-select: none;
    }
    .file-clip:hover { background: #e8e1cf; transform: rotate(-15deg); }
    .file-hint { display: block; font-size: 12px; color: #888; margin-top: 6px; }
    .file-list { display: block; font-size: 13px; color: #333; margin-top: 4px; font-weight: 500; }
    .form-msg {
      display: none;
      padding: 12px 16px;
      border-radius: 4px;
      font-size: 14px;
      margin-top: 12px;
      text-align: center;
    }
    .form-msg.success { background: #e8f5e9; color: #2e7d32; display: block; }
    .form-msg.error { background: #fdecea; color: #c62828; display: block; }

    /* Tab: Graphic facilitation */
    .facilitation-grid {
      display: grid;
      grid-template-columns: 280px 1fr;
      gap: 60px;
      align-items: center;
    }
    .facilitation-video {
      width: 100%;
      aspect-ratio: 9/16;
      object-fit: cover;
      border-radius: 4px;
      display: block;
    }
    .facilitation-text { }
    .facilitation-intro {
      font-size: 17px;
      line-height: 1.8;
      color: #444;
      margin: 0 0 32px;
    }
    .facilitation-quote {
      border-left: 3px solid var(--accent);
      padding: 8px 0 8px 24px;
      max-width: 720px;
      margin: 0 0 40px;
      font-family: 'Playfair Display', serif;
      font-style: italic;
      font-size: 22px;
      line-height: 1.5;
      color: #333;
    }
    .facilitation-quote cite {
      display: block;
      margin-top: 12px;
      font-family: 'Inter', sans-serif;
      font-style: normal;
      font-size: 13px;
      letter-spacing: 1px;
      text-transform: uppercase;
      color: var(--gray);
    }
    .facilitation-cta {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 28px;
      background: var(--black);
      color: var(--white);
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 1px;
      text-transform: uppercase;
      text-decoration: none;
      border-radius: 4px;
      transition: background 0.2s;
    }
    .facilitation-cta:hover { background: var(--accent); color: var(--black); }

    @media (max-width: 900px) {
      .prof-grid { grid-template-columns: 1fr; }
      .prof-photo { max-width: 240px; }
      .niveau-grid { grid-template-columns: 1fr; gap: 32px; }
      .niveau-photo { max-width: 240px; }
      .inscription-grid { grid-template-columns: 1fr; }
      .form-row { grid-template-columns: 1fr; }
      .cours-gallery { grid-template-columns: repeat(2, 1fr); }
      .facilitation-grid { grid-template-columns: 1fr; gap: 32px; }
      .facilitation-video-wrap { max-width: 320px; margin: 0 auto; }
    }
    @media (max-width: 600px) {
      .cours-tabs { flex-wrap: wrap; }
      .cours-tab-btn { padding: 10px 16px; font-size: 11px; }
      .niveau-tabs { flex-wrap: wrap; }
    }

    /* ── CONTACT ── */
    #contact { background: var(--black); position: relative; z-index: 1; overflow: visible; }
    #contact .section-title { color: var(--white); }
    #contact .section-label { color: var(--accent); }
    #contact .section-lead { color: rgba(255,255,255,0.5); }
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      margin-top: 56px;
      align-items: start;
    }
    .contact-info-block {
      display: flex;
      flex-direction: column;
      gap: 32px;
    }
    .contact-item { display: flex; gap: 16px; align-items: flex-start; }
    .contact-item-icon {
      width: 44px; height: 44px;
      border: 1px solid rgba(255,255,255,0.15);
      border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      color: var(--accent);
      font-size: 16px;
      flex-shrink: 0;
    }
    .contact-item-label {
      font-size: 11px;
      font-weight: 600;
      letter-spacing: 1px;
      text-transform: uppercase;
      color: rgba(255,255,255,0.4);
      margin-bottom: 4px;
    }
    .contact-item-value {
      font-size: 15px;
      color: var(--white);
    }
    .contact-item-value a { color: var(--white); text-decoration: none; }
    .contact-item-value a:hover { color: var(--accent); }
    .contact-social {
      display: flex;
      gap: 12px;
      margin-top: 40px;
    }
    .social-link {
      width: 44px; height: 44px;
      border: 1px solid rgba(255,255,255,0.15);
      border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      color: rgba(255,255,255,0.6);
      font-size: 17px;
      text-decoration: none;
      transition: all 0.2s;
    }
    .social-link:hover {
      border-color: var(--accent);
      color: var(--accent);
    }
    .contact-tagline {
      font-family: 'Playfair Display', serif;
      font-size: clamp(24px, 3vw, 36px);
      font-style: italic;
      color: rgba(255,255,255,0.35);
      line-height: 1.4;
    }
    .contact-form { display: flex; flex-direction: column; gap: 14px; }
    .contact-form .cf-group { display: flex; flex-direction: column; gap: 6px; }
    .contact-form label { font-size: 11px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: rgba(255,255,255,0.45); }
    .contact-form input, .contact-form textarea { background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.15); color: var(--white); padding: 11px 14px; border-radius: 4px; font-family: inherit; font-size: 14px; outline: none; transition: border-color .2s; }
    .contact-form input::placeholder, .contact-form textarea::placeholder { color: rgba(255,255,255,0.25); }
    .contact-form input:focus, .contact-form textarea:focus { border-color: var(--accent); }
    .contact-form textarea { resize: vertical; min-height: 110px; }
    .cf-submit { background: var(--accent); color: var(--white); border: none; padding: 13px 28px; font-weight: 700; font-size: 12px; letter-spacing: .07em; text-transform: uppercase; cursor: pointer; border-radius: 4px; transition: opacity .2s; align-self: flex-start; }
    .cf-submit:hover { opacity: .85; }
    .cf-msg { font-size: 13px; margin-top: 4px; }
    .cf-msg.ok { color: #7ec87e; }
    .cf-msg.err { color: #e07070; }

    /* ── FOOTER ── */
    footer {
      position: relative;
      z-index: 2;
      background: #050505;
      border-top: 1px solid rgba(255,255,255,0.12);
      padding: 28px 48px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
    }
    footer p {
      font-size: 12px;
      color: rgba(255,255,255,0.6);
    }

    /* ── BACK TO TOP ── */
    .back-to-top {
      position: fixed;
      bottom: 32px;
      right: 32px;
      z-index: 999;
      width: 44px; height: 44px;
      background: var(--accent);
      color: var(--black);
      display: flex; align-items: center; justify-content: center;
      text-decoration: none;
      font-size: 20px;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.3s;
      border-radius: 2px;
    }
    .back-to-top.visible { opacity: 1; pointer-events: all; }

    /* ── RESPONSIVE TABLETTE (≤ 900px) ── */
    @media (max-width: 900px) {
      /* Nav */
      nav { padding: 16px 24px; }
      .nav-links, .nav-lang, .nav-social { display: none; }
      .nav-mobile-toggle { display: block; }
      .nav-links.open {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 0; left: 0; right: 0; bottom: 0;
        background: rgba(10,10,10,0.97);
        align-items: center;
        justify-content: center;
        gap: 32px;
        z-index: 999;
      }
      .nav-links.open a { font-size: 20px; color: white; letter-spacing: 1px; }
      .nav-links.open ~ .nav-lang {
        display: block;
        position: fixed;
        bottom: 60px;
        left: 50%;
        transform: translateX(-50%);
        z-index: 1000;
      }
      .nav-links.open ~ .nav-lang a {
        color: white;
        border-color: rgba(255,255,255,0.4);
        font-size: 16px;
      }
      .nav-links.open ~ .nav-social {
        display: flex;
        position: fixed;
        bottom: 100px;
        left: 50%;
        transform: translateX(-50%);
        z-index: 1000;
        gap: 20px;
      }
      .nav-links.open ~ .nav-social a { color: rgba(255,255,255,0.6); }
      .nav-links.open ~ .nav-social a:hover { color: var(--accent); }

      /* Sections */
      section { padding: 80px 0; }

      /* About */
      .about-grid { grid-template-columns: 1fr; gap: 40px; }
      .about-photo::before { display: none; } /* prevent overflow */
      .about-photo img { max-height: 400px; width: 100%; object-fit: cover; }
      .about-stats { flex-wrap: wrap; gap: 28px; }

      /* Portfolio */
      .portfolio-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
      .filters { gap: 6px; }
      .filter-btn { padding: 7px 14px; font-size: 11px; }

      /* Livres */
      .books-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }

      /* Timeline */
      .timeline { padding-left: 0; }
      .timeline::before { left: 56px; }
      .timeline-year { min-width: 56px; font-size: 15px; }
      .timeline-item { gap: 20px; }

      /* Doc cards */
      .doc-cards { grid-template-columns: 1fr; max-width: 480px; }
      .doc-card-visual { height: 240px; }

      /* Contact */
      .contact-grid { grid-template-columns: 1fr; gap: 40px; }
      .contact-tagline { font-size: clamp(18px, 4vw, 28px); }

      /* Footer */
      footer { padding: 20px 24px; flex-direction: column; text-align: center; gap: 8px; }
    }

    /* ── RESPONSIVE MOBILE (≤ 560px) ── */
    @media (max-width: 560px) {
      /* Sections */
      section { padding: 64px 0; }
      .container { padding: 0 16px; }

      /* Hero */
      .hero-name { font-size: clamp(38px, 12vw, 56px); }
      .hero-eyebrow { font-size: 10px; letter-spacing: 2px; }
      .hero-subtitle { font-size: 12px; letter-spacing: 1.5px; }
      .hero-cta { flex-direction: column; align-items: center; gap: 12px; }
      .btn-primary, .btn-outline { width: 200px; text-align: center; }

      /* About */
      .about-stats { gap: 20px; }
      .stat-num { font-size: 32px; }
      .section-title { font-size: 28px; }

      /* Portfolio */
      .portfolio-grid { grid-template-columns: 1fr 1fr; gap: 6px; }
      .filters { gap: 5px; margin-bottom: 28px; }
      .filter-btn { padding: 6px 10px; font-size: 10px; }

      /* Livres */
      .books-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
      .book-card-title { font-size: 11px; }

      /* Timeline */
      .timeline::before { display: none; }
      .timeline-item { flex-direction: column; gap: 8px; }
      .timeline-year { min-width: auto; text-align: left; font-size: 22px; }
      .timeline-dot { display: none; }
      .timeline-body p { font-size: 14px; }

      /* Doc cards */
      .doc-cards { max-width: 100%; }
      .doc-card-visual { height: 200px; }
      .doc-card-body { padding: 16px; }
      .doc-card-actions { flex-direction: column; gap: 8px; }
      .doc-btn { padding: 12px; }

      /* Contact */
      .contact-tagline { font-size: 20px; }
      .contact-item-icon { width: 36px; height: 36px; font-size: 14px; }

      /* Services carousel */
      .cours-carousel { gap: 6px; }
      .carousel-btn { width: 32px; height: 32px; font-size: 14px; }
      .cours-gallery { grid-template-columns: repeat(2, 1fr); }
      .niveau-desc { font-size: 14px; }
      .tarifs { font-size: 13px; }
      .tarif-item { padding: 10px 14px; }
      .inscription-detail { font-size: 13px; }

      /* Back to top */
      .back-to-top { bottom: 16px; right: 16px; width: 38px; height: 38px; }
    }

    /* ===== TIPS ===== */
    #tips {
      padding: 100px 0;
      background: var(--light-gray);
    }
    .tips-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 20px;
      margin-top: 48px;
    }
    .tip-card {
      display: flex;
      flex-direction: column;
      background: var(--dark);
      border-radius: 4px;
      overflow: hidden;
    }
    .tip-img-wrap {
      aspect-ratio: 1;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 16px;
    }
    .tip-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: contain;
    }
    .tip-title {
      font-family: 'Playfair Display', serif;
      font-size: 0.95rem;
      color: var(--accent);
      padding: 16px 16px 8px;
      letter-spacing: 0.03em;
    }
    .tip-quote {
      font-size: 0.82rem;
      color: rgba(255,255,255,0.72);
      padding: 0 16px 20px;
      line-height: 1.6;
      font-style: italic;
      flex: 1;
    }
    @media (max-width: 900px) {
      .tips-grid { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 560px) {
      .tips-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
      #tips { padding: 72px 0; }
    }
    :focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: 2px;
    }
    .skip-nav {
      position: absolute;
      top: -100%;
      left: 16px;
      z-index: 9999;
      background: var(--black);
      color: white;
      padding: 12px 24px;
      font-size: 14px;
      text-decoration: none;
      border-radius: 0 0 4px 4px;
    }
    .skip-nav:focus { top: 0; }


/* ── FAQ ── */
#faq { background: var(--light-gray); }
.faq-list { max-width: 820px; margin: 40px auto 0; }
.faq-item {
  border-bottom: 1px solid #ddd;
  padding: 18px 0;
}
.faq-item:first-child { border-top: 1px solid #ddd; }
.faq-item summary {
  font-family: 'Playfair Display', serif;
  font-size: 18px;
  font-weight: 700;
  cursor: pointer;
  list-style: none !important;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  color: var(--text);
  transition: color 0.2s;
}
.faq-item summary::-webkit-details-marker { display: none !important; }
.faq-item summary::marker { content: ''; display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 24px;
  font-weight: 300;
  color: var(--accent);
  transition: transform 0.2s;
  flex-shrink: 0;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item summary:hover { color: var(--accent); }
.faq-item p {
  margin: 14px 0 0;
  color: #444;
  line-height: 1.75;
  font-size: 15px;
}