:root {
      --co2-primary: #0b5f88;
      --co2-primary-dark: #083f5c;
      --co2-accent: #16a3a6;
      --co2-soft: #eef8fb;
      --co2-soft-2: #f7fbfd;
      --co2-text: #193140;
      --co2-muted: #5b6d78;
      --co2-border: #d7e6ec;
      --co2-warning: #fff8e6;
      --co2-warning-border: #e5b94f;
      --co2-white: #ffffff;
      --co2-shadow: 0 14px 35px rgba(11, 95, 136, 0.10);
      --co2-radius: 18px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      background: var(--co2-soft-2);
      color: var(--co2-text);
      font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

    .co2-page {
      overflow: hidden;
    }

    .co2-container {
      width: min(1160px, calc(100% - 32px));
      margin: 0 auto;
    }

    .co2-hero {
      position: relative;
      padding: 70px 0 58px;
      background:
        radial-gradient(circle at 88% 16%, rgba(22, 163, 166, 0.19), transparent 31%),
        linear-gradient(135deg, #072f49 0%, #0b5f88 58%, #0e7f93 100%);
      color: var(--co2-white);
    }

    .co2-hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.12fr) minmax(320px, 0.88fr);
      gap: 46px;
      align-items: center;
    }

    .co2-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      margin-bottom: 18px;
      padding: 8px 14px;
      border: 1px solid rgba(255,255,255,0.30);
      border-radius: 999px;
      background: rgba(255,255,255,0.11);
      font-size: 0.86rem;
      font-weight: 700;
      letter-spacing: 0.03em;
      text-transform: uppercase;
    }

    .co2-hero h1 {
      margin: 0;
      max-width: 820px;
      color: var(--co2-white);
      font-size: clamp(2.1rem, 5vw, 4.25rem);
      line-height: 1.06;
      letter-spacing: -0.035em;
    }

    .co2-lead {
      max-width: 760px;
      margin: 24px 0 0;
      color: rgba(255,255,255,0.90);
      font-size: clamp(1.03rem, 1.8vw, 1.23rem);
    }

    .co2-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 10px 22px;
      margin-top: 25px;
      color: rgba(255,255,255,0.78);
      font-size: 0.93rem;
    }

    .co2-hero-visual {
      position: relative;
      padding: 18px;
      border: 1px solid rgba(255,255,255,0.25);
      border-radius: 28px;
      background: rgba(255,255,255,0.12);
      box-shadow: 0 22px 60px rgba(0,0,0,0.22);
      backdrop-filter: blur(12px);
    }

    .co2-hero-visual img {
      display: block;
      width: 100%;
      height: auto;
      border-radius: 19px;
      background: #fff;
    }

    .co2-main {
      padding: 54px 0 80px;
    }

    .co2-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 310px;
      gap: 42px;
      align-items: start;
    }

    .co2-article {
      min-width: 0;
    }

    .co2-card,
    .co2-section,
    .co2-toc,
    .co2-side-card {
      border: 1px solid var(--co2-border);
      border-radius: var(--co2-radius);
      background: var(--co2-white);
      box-shadow: var(--co2-shadow);
    }

    .co2-card,
    .co2-section {
      margin-bottom: 26px;
      padding: clamp(24px, 4vw, 42px);
    }

    .co2-answer {
      border-left: 6px solid var(--co2-accent);
      background: linear-gradient(135deg, #ffffff, #eefbfb);
    }

    .co2-answer h2,
    .co2-section h2 {
      margin: 0 0 18px;
      color: var(--co2-primary-dark);
      font-size: clamp(1.55rem, 3vw, 2.15rem);
      line-height: 1.2;
      letter-spacing: -0.02em;
    }

    .co2-section h3 {
      margin: 30px 0 12px;
      color: var(--co2-primary);
      font-size: 1.25rem;
      line-height: 1.35;
    }

    .co2-section p,
    .co2-card p {
      margin: 0 0 16px;
    }

    .co2-section p:last-child,
    .co2-card p:last-child {
      margin-bottom: 0;
    }

    .co2-highlight {
      font-weight: 750;
      color: var(--co2-primary-dark);
    }

    .co2-checklist,
    .co2-list {
      margin: 18px 0 0;
      padding: 0;
      list-style: none;
    }

    .co2-checklist li,
    .co2-list li {
      position: relative;
      margin: 12px 0;
      padding-left: 32px;
    }

    .co2-checklist li::before {
      content: "✓";
      position: absolute;
      left: 0;
      top: 0.04em;
      display: grid;
      width: 22px;
      height: 22px;
      place-items: center;
      border-radius: 50%;
      background: #dff6f2;
      color: #087c75;
      font-size: 0.82rem;
      font-weight: 900;
    }

    .co2-list li::before {
      content: "•";
      position: absolute;
      left: 8px;
      color: var(--co2-accent);
      font-weight: 900;
    }

    .co2-toc {
      margin-bottom: 26px;
      padding: 26px 30px;
    }

    .co2-toc strong {
      display: block;
      margin-bottom: 12px;
      color: var(--co2-primary-dark);
      font-size: 1.08rem;
    }

    .co2-toc ol {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 8px 22px;
      margin: 0;
      padding-left: 20px;
    }

    .co2-toc a {
      color: var(--co2-primary);
      text-decoration: none;
    }

    .co2-toc a:hover {
      text-decoration: underline;
    }

    .co2-note {
      margin: 24px 0;
      padding: 20px 22px;
      border: 1px solid var(--co2-warning-border);
      border-radius: 14px;
      background: var(--co2-warning);
    }

    .co2-note strong {
      color: #805c00;
    }

    .co2-grid-2,
    .co2-grid-3 {
      display: grid;
      gap: 18px;
      margin-top: 22px;
    }

    .co2-grid-2 {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .co2-grid-3 {
      grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .co2-mini-card {
      padding: 20px;
      border: 1px solid var(--co2-border);
      border-radius: 14px;
      background: var(--co2-soft-2);
    }

    .co2-mini-card h3 {
      margin: 0 0 8px;
      color: var(--co2-primary-dark);
      font-size: 1.08rem;
    }

    .co2-mini-card p {
      margin: 0;
      color: var(--co2-muted);
      font-size: 0.96rem;
    }

    .co2-table-wrap {
      margin-top: 22px;
      overflow-x: auto;
      border: 1px solid var(--co2-border);
      border-radius: 14px;
    }

    .co2-table {
      width: 100%;
      min-width: 720px;
      border-collapse: collapse;
      background: #fff;
    }

    .co2-table th,
    .co2-table td {
      padding: 15px 16px;
      border-bottom: 1px solid var(--co2-border);
      text-align: left;
      vertical-align: top;
    }

    .co2-table th {
      background: var(--co2-primary);
      color: #fff;
      font-size: 0.92rem;
    }

    .co2-table tr:last-child td {
      border-bottom: 0;
    }

    .co2-table tbody tr:nth-child(even) {
      background: #f8fbfc;
    }

    .co2-image {
      margin: 28px 0;
    }

    .co2-image img {
      display: block;
      width: 100%;
      height: auto;
      border-radius: 16px;
      border: 1px solid var(--co2-border);
      background: #fff;
    }

    .co2-image figcaption {
      margin-top: 9px;
      color: var(--co2-muted);
      font-size: 0.88rem;
      text-align: center;
    }

    .co2-link {
      color: var(--co2-primary);
      font-weight: 700;
      text-decoration-thickness: 1px;
      text-underline-offset: 3px;
    }

    .co2-link:hover {
      color: var(--co2-primary-dark);
    }

    .co2-cta {
      position: relative;
      overflow: hidden;
      margin: 32px 0;
      padding: clamp(28px, 5vw, 48px);
      border-radius: 22px;
      background: linear-gradient(135deg, #083f5c, #0b7191);
      color: #fff;
      box-shadow: var(--co2-shadow);
    }

    .co2-cta::after {
      content: "";
      position: absolute;
      right: -90px;
      bottom: -100px;
      width: 260px;
      height: 260px;
      border-radius: 50%;
      background: rgba(255,255,255,0.08);
    }

    .co2-cta h2 {
      position: relative;
      z-index: 1;
      margin: 0 0 12px;
      color: #fff;
      font-size: clamp(1.55rem, 3vw, 2.1rem);
    }

    .co2-cta p {
      position: relative;
      z-index: 1;
      max-width: 760px;
      color: rgba(255,255,255,0.88);
    }

    .co2-buttons {
      position: relative;
      z-index: 1;
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 23px;
    }

    .co2-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      padding: 12px 20px;
      border: 1px solid rgba(255,255,255,0.55);
      border-radius: 12px;
      color: #fff;
      font-weight: 800;
      text-decoration: none;
      transition: transform .2s ease, background .2s ease;
    }

    .co2-btn-primary {
      border-color: #fff;
      background: #fff;
      color: var(--co2-primary-dark);
    }

    .co2-btn:hover {
      transform: translateY(-2px);
      background: rgba(255,255,255,0.15);
    }

    .co2-btn-primary:hover {
      background: #eaf8fb;
    }

    .co2-sidebar {
      position: sticky;
      top: 24px;
    }

    .co2-side-card {
      margin-bottom: 20px;
      padding: 23px;
    }

    .co2-side-card h2,
    .co2-side-card h3 {
      margin: 0 0 12px;
      color: var(--co2-primary-dark);
      font-size: 1.12rem;
      line-height: 1.35;
    }

    .co2-side-card p {
      margin: 0;
      color: var(--co2-muted);
      font-size: 0.95rem;
    }

    .co2-score {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 10px;
      margin: 12px 0;
      padding-bottom: 10px;
      border-bottom: 1px dashed var(--co2-border);
    }

    .co2-score:last-child {
      margin-bottom: 0;
      padding-bottom: 0;
      border-bottom: 0;
    }

    .co2-score span:last-child {
      color: var(--co2-primary);
      font-weight: 800;
    }

    .co2-faq details {
      margin: 12px 0;
      border: 1px solid var(--co2-border);
      border-radius: 13px;
      background: #fff;
    }

    .co2-faq summary {
      cursor: pointer;
      padding: 17px 20px;
      color: var(--co2-primary-dark);
      font-weight: 800;
    }

    .co2-faq details p {
      padding: 0 20px 18px;
      color: var(--co2-muted);
    }

    .co2-references {
      color: var(--co2-muted);
      font-size: 0.92rem;
    }

    .co2-references a {
      color: var(--co2-primary);
    }

    .co2-disclaimer {
      margin-top: 28px;
      padding: 18px 20px;
      border-radius: 14px;
      background: #edf3f5;
      color: #536670;
      font-size: 0.9rem;
    }

    @media (max-width: 980px) {
      .co2-hero-grid,
      .co2-layout {
        grid-template-columns: 1fr;
      }

      .co2-hero-visual {
        max-width: 620px;
      }

      .co2-sidebar {
        position: static;
      }

      .co2-grid-3 {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 700px) {
      .co2-hero {
        padding: 48px 0 42px;
      }

      .co2-main {
        padding: 34px 0 60px;
      }

      .co2-toc ol,
      .co2-grid-2 {
        grid-template-columns: 1fr;
      }

      .co2-card,
      .co2-section,
      .co2-toc {
        padding: 23px 20px;
      }

      .co2-buttons {
        flex-direction: column;
      }

      .co2-btn {
        width: 100%;
      }
    }

    @media print {
      body {
        background: #fff;
      }

      .co2-hero,
      .co2-cta {
        color: #000;
        background: #fff;
      }

      .co2-sidebar,
      .co2-buttons {
        display: none;
      }

      .co2-layout {
        display: block;
      }

      .co2-card,
      .co2-section,
      .co2-toc {
        box-shadow: none;
      }
    }
  
  /* =========================================================
     CORRECTION ANTI-DÉFORMATION DES IMAGES
     Ces règles sont volontairement plus spécifiques et utilisent
     !important pour neutraliser les styles imposés par certains CMS.
     ========================================================= */
  .co2-page img {
    display: block !important;
    max-width: 100% !important;
    height: auto !important;
    object-fit: contain !important;
    object-position: center !important;
  }

  .co2-page figure {
    max-width: 100%;
  }

  /* Image carrée du hero : conserve intégralement le visuel 1:1 */
  .co2-page .co2-hero-visual {
    overflow: hidden;
  }

  .co2-page .co2-hero-visual img {
    width: 100% !important;
    height: auto !important;
    aspect-ratio: 1 / 1;
    object-fit: contain !important;
    object-position: center !important;
  }

  /* Images éditoriales : rapport natif respecté, aucune hauteur forcée */
  .co2-page .co2-image,
  .co2-page .co2-content-image {
    width: 100%;
    margin: 28px 0;
    overflow: hidden;
    border: 1px solid var(--co2-border);
    border-radius: 16px;
    background: #fff;
  }

  .co2-page .co2-image img,
  .co2-page .co2-content-image img {
    width: 100% !important;
    height: auto !important;
    max-height: none !important;
    object-fit: contain !important;
    object-position: center !important;
    border: 0 !important;
    border-radius: 0 !important;
  }

  /* Visuels carrés 1254 × 1254 */
  .co2-page .co2-image-square img {
    aspect-ratio: 1 / 1;
  }

  /* Visuels paysage 600 × 400 */
  .co2-page .co2-image-landscape img {
    aspect-ratio: 3 / 2;
  }

  .co2-page .co2-content-image figcaption {
    padding: 10px 14px 13px;
    color: var(--co2-muted);
    font-size: 0.88rem;
    line-height: 1.55;
    text-align: center;
  }

  /* Protection contre les règles globales du thème du site */
  .co2-page article img,
  .co2-page section img,
  .co2-page figure img {
    min-width: 0 !important;
    max-width: 100% !important;
    min-height: 0 !important;
    max-height: none !important;
    transform: none !important;
  }

  @media (max-width: 700px) {
    .co2-page .co2-hero-visual img,
    .co2-page .co2-image-square img,
    .co2-page .co2-image-landscape img {
      width: 100% !important;
      height: auto !important;
    }
  }