* { box-sizing: border-box; margin: 0; padding: 0; }

    :root {
      --lime: #B8E83A;
      --night: #0C0D0A;
      --ink: #111210;
      --steel: #1E201A;
      --plate: #2A2C24;
      --mist: #7A7D6E;
      --fog: #B0B3A0;
      --cream: #F2F4EC;
      --orange: #E8540A;
    }

    html, body {
      background: radial-gradient(circle at 20% 0%, #1f221b 0%, #12130f 55%, #0c0d0a 100%);
      color: var(--cream);
      font-family: 'Space Grotesk', sans-serif;
      min-height: 100%;
    }

    a { color: inherit; text-decoration: none; }

    .container {
      width: min(1180px, 100% - 32px);
      margin: 0 auto;
    }

    .site-nav {
      position: sticky;
      top: 0;
      z-index: 40;
      backdrop-filter: blur(12px);
      background: rgba(12, 13, 10, 0.86);
      border-bottom: 1px solid rgba(184, 232, 58, 0.16);
    }

    .site-nav-inner {
      height: 70px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 14px;
      font-family: 'Syne', sans-serif;
      color: var(--cream);
      text-decoration: none;
    }

    .logo-text {
      display: flex;
      flex-direction: column;
      font-size: 26px;
      font-weight: 800;
      line-height: 0.95;
      letter-spacing: -0.02em;
    }

    .logo-text span:last-child { color: var(--lime); }

    .logo-mark {
      width: 44px;
      height: 44px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--lime);
      background: rgba(184, 232, 58, 0.08);
      border: 1px solid rgba(184, 232, 58, 0.35);
      border-radius: 12px;
    }

    .logo-mark svg,
    .logo-mark img,
    .logo-mark .logo-dice {
      width: 26px;
      height: 26px;
      display: block;
      animation: logo-spin 20s linear infinite;
    }

    .logo-mark .logo-dice {
      background-color: var(--lime);
      -webkit-mask: url('/logo.svg') no-repeat center / contain;
              mask: url('/logo.svg') no-repeat center / contain;
    }

    .logo:hover .logo-mark img,
    .logo:hover .logo-mark svg,
    .logo:hover .logo-mark .logo-dice { animation-duration: 6s; }

    @keyframes logo-spin {
      from { transform: rotate(0deg); }
      to { transform: rotate(360deg); }
    }

    @media (prefers-reduced-motion: reduce) {
      .logo-mark svg,
      .logo-mark img,
      .logo-mark .logo-dice { animation: none; }
    }

    .site-links {
      display: flex;
      align-items: center;
      gap: 16px;
      overflow-x: auto;
      scrollbar-width: none;
    }

    .site-links::-webkit-scrollbar { display: none; }

    .site-link {
      font-size: 12px;
      color: var(--fog);
      letter-spacing: 0.09em;
      text-transform: uppercase;
      white-space: nowrap;
      cursor: pointer;
      transition: color 0.2s ease;
    }

    .site-link:hover,
    .site-link.active { color: var(--lime); }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .lang-switch {
      display: flex;
      border: 1px solid rgba(242, 244, 236, 0.16);
      border-radius: 6px;
      overflow: hidden;
    }

    .lang-btn {
      background: transparent;
      color: var(--fog);
      border: 0;
      padding: 7px 10px;
      font-size: 11px;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      cursor: pointer;
    }

    .lang-btn.active {
      color: var(--night);
      background: var(--lime);
      font-weight: 700;
    }

    .cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: var(--lime);
      color: var(--night);
      border: 0;
      padding: 11px 16px;
      border-radius: 6px;
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 0.09em;
      text-transform: uppercase;
      cursor: pointer;
      transition: transform 0.2s ease;
    }

    .cta:hover { transform: translateY(-1px); }

    .tabs {
      margin: 18px auto 0;
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
      background: #080908;
      border: 1px solid var(--steel);
      border-radius: 10px;
      padding: 8px;
    }

    .tab {
      border: 0;
      background: transparent;
      color: var(--mist);
      font-size: 12px;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      padding: 10px 14px;
      border-radius: 7px;
      cursor: pointer;
      transition: background 0.2s ease, color 0.2s ease;
    }

    .tab.active {
      background: rgba(184, 232, 58, 0.13);
      color: var(--lime);
    }

    .page {
      margin-top: 18px;
      border: 1px solid var(--steel);
      border-radius: 16px;
      overflow: hidden;
      background: var(--ink);
      box-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
    }

    .hero {
      position: relative;
      min-height: 360px;
      display: flex;
      align-items: flex-end;
      overflow: hidden;
      isolation: isolate;
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background-size: cover;
      background-position: center;
      filter: brightness(0.4);
      z-index: -2;
      /* Hint navigateur : décode l'image en arrière-plan, n'empêche pas le rendu */
      will-change: auto;
    }

    .hero::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(to right, rgba(12, 13, 10, 0.9) 0%, rgba(12, 13, 10, 0.48) 56%, rgba(12, 13, 10, 0.12) 100%);
      z-index: -1;
    }

    /*
     * Hero backgrounds — servis en AVIF (≈75 KB) ou WebP (≈110 KB) à la place
     * du PNG original (2.1 MB). Fallback PNG conservé pour navigateurs très anciens.
     * Breakpoints calés sur la largeur du `.container` (max 1180 px).
     */
    /* Mobile (≤ 640 px) */
    #page-home .hero::before,    [data-hero="home"] .hero::before,
    #page-private .hero::before, [data-hero="private"] .hero::before,
    #page-faq .hero::before,     [data-hero="faq"] .hero::before {
      background-image: url('/city.png');
      background-image: image-set(
        url('/city-640.avif') type('image/avif'),
        url('/city-640.webp') type('image/webp')
      );
    }
    #page-corp .hero::before, [data-hero="corp"] .hero::before,
    #page-how .hero::before,  [data-hero="how"] .hero::before {
      background-image: url('/city_light.png');
      background-image: image-set(
        url('/city_light-640.avif') type('image/avif'),
        url('/city_light-640.webp') type('image/webp')
      );
    }

    /* Tablette / desktop standard (641 – 1024 px) */
    @media (min-width: 641px) {
      #page-home .hero::before,    [data-hero="home"] .hero::before,
      #page-private .hero::before, [data-hero="private"] .hero::before,
      #page-faq .hero::before,     [data-hero="faq"] .hero::before {
        background-image: url('/city.png');
        background-image: image-set(
          url('/city-1024.avif') type('image/avif'),
          url('/city-1024.webp') type('image/webp')
        );
      }
      #page-corp .hero::before, [data-hero="corp"] .hero::before,
      #page-how .hero::before,  [data-hero="how"] .hero::before {
        background-image: url('/city_light.png');
        background-image: image-set(
          url('/city_light-1024.avif') type('image/avif'),
          url('/city_light-1024.webp') type('image/webp')
        );
      }
    }

    /* Desktop large / retina (≥ 1025 px) */
    @media (min-width: 1025px) {
      #page-home .hero::before,    [data-hero="home"] .hero::before,
      #page-private .hero::before, [data-hero="private"] .hero::before,
      #page-faq .hero::before,     [data-hero="faq"] .hero::before {
        background-image: url('/city.png');
        background-image: image-set(
          url('/city-1352.avif') type('image/avif'),
          url('/city-1352.webp') type('image/webp')
        );
      }
      #page-corp .hero::before, [data-hero="corp"] .hero::before,
      #page-how .hero::before,  [data-hero="how"] .hero::before {
        background-image: url('/city_light.png');
        background-image: image-set(
          url('/city_light-1352.avif') type('image/avif'),
          url('/city_light-1352.webp') type('image/webp')
        );
      }
    }

    .hero-content {
      width: 100%;
      padding: 32px;
    }

    .hero-tag {
      display: inline-block;
      margin-bottom: 14px;
      padding: 5px 10px;
      border-radius: 5px;
      border: 1px solid rgba(184, 232, 58, 0.35);
      background: rgba(184, 232, 58, 0.1);
      color: var(--lime);
      font-size: 10px;
      letter-spacing: 0.14em;
      text-transform: uppercase;
    }

    .hero-title {
      font-family: 'Syne', sans-serif;
      font-size: clamp(38px, 7vw, 72px);
      line-height: 0.9;
      letter-spacing: -0.03em;
      max-width: 620px;
    }

    .hero-title em {
      display: block;
      color: var(--cream);
      font-style: normal;
      position: relative;
    }

    .hero-title em::after {
      content: "";
      display: block;
      width: 88px;
      height: 4px;
      margin-top: 10px;
      background: var(--lime);
      border-radius: 2px;
    }

    .hero-sub {
      margin-top: 14px;
      padding-left: 12px;
      border-left: 2px solid var(--lime);
      font-size: 15px;
      line-height: 1.65;
      color: var(--fog);
      max-width: 560px;
    }

    .hero-actions {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      margin-top: 20px;
    }

    .cta.secondary {
      background: transparent;
      color: var(--cream);
      border: 1px solid rgba(242, 244, 236, 0.22);
    }

    .stats {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      border-top: 1px solid rgba(184, 232, 58, 0.14);
      background: #080908;
    }

    .stat {
      text-align: center;
      padding: 16px 8px;
      border-right: 1px solid rgba(255, 255, 255, 0.05);
    }

    .stat:last-child { border-right: 0; }

    .stat-value {
      font-family: 'Syne', sans-serif;
      color: var(--cream);
      font-size: 24px;
      font-weight: 800;
      line-height: 1;
    }

    .stat-label {
      margin-top: 6px;
      font-size: 11px;
      color: var(--mist);
      letter-spacing: 0.09em;
      text-transform: uppercase;
    }

    .section {
      padding: 34px;
      border-top: 1px solid rgba(184, 232, 58, 0.08);
    }

    .section.alt { background: #0A0B08; }

    .section-kicker {
      font-size: 11px;
      letter-spacing: 0.2em;
      text-transform: uppercase;
      color: var(--mist);
      margin-bottom: 10px;
    }

    .section-title {
      font-family: 'Syne', sans-serif;
      font-size: clamp(26px, 4vw, 38px);
      line-height: 1;
      margin-bottom: 20px;
    }

    .grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
    .grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
    .grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }

    .card {
      border-radius: 10px;
      padding: 18px;
      background: var(--steel);
      border: 1px solid var(--plate);
    }

    .card.lime {
      background: rgba(184, 232, 58, 0.06);
      border-color: rgba(184, 232, 58, 0.24);
    }

    .card.orange {
      background: rgba(232, 84, 10, 0.06);
      border-color: rgba(232, 84, 10, 0.24);
    }

    .card-badge {
      display: inline-block;
      margin-bottom: 10px;
      padding: 4px 8px;
      border-radius: 4px;
      font-size: 10px;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      background: rgba(184, 232, 58, 0.14);
      color: var(--lime);
    }

    .card-title {
      font-family: 'Syne', sans-serif;
      font-size: 20px;
      margin-bottom: 8px;
      line-height: 1.1;
    }

    .card-text {
      font-size: 14px;
      color: var(--fog);
      line-height: 1.6;
    }

    .price-strip {
      margin-top: 16px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      background: rgba(184, 232, 58, 0.09);
      border: 1px solid rgba(184, 232, 58, 0.25);
      border-radius: 10px;
      padding: 16px;
    }

    .price-main {
      font-family: 'Syne', sans-serif;
      font-size: 22px;
      color: var(--cream);
      line-height: 1.15;
    }

    .price-main em {
      font-style: normal;
      color: var(--lime);
    }

    .price-sub {
      margin-top: 6px;
      color: var(--mist);
      font-size: 13px;
    }

    .timeline {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 12px;
    }

    .step {
      background: var(--steel);
      border: 1px solid var(--plate);
      border-radius: 10px;
      padding: 16px;
    }

    .step-index {
      width: 30px;
      height: 30px;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: rgba(184, 232, 58, 0.16);
      color: var(--lime);
      font-family: 'Syne', sans-serif;
      font-size: 12px;
      margin-bottom: 10px;
    }

    .step-title {
      font-family: 'Syne', sans-serif;
      font-size: 17px;
      margin-bottom: 6px;
    }

    .step-text {
      color: var(--fog);
      font-size: 13px;
      line-height: 1.5;
    }

    .faq-item {
      border-bottom: 1px solid var(--steel);
      padding: 12px 0;
    }

    .faq-item:last-child { border-bottom: 0; }

    .faq-q {
      width: 100%;
      border: 0;
      background: transparent;
      color: var(--cream);
      text-align: left;
      cursor: pointer;
      font-size: 16px;
      display: flex;
      justify-content: space-between;
      gap: 12px;
      align-items: center;
    }

    .faq-q span {
      color: var(--lime);
      font-size: 20px;
      line-height: 1;
      flex-shrink: 0;
    }

    .faq-a {
      display: none;
      margin-top: 9px;
      color: var(--fog);
      font-size: 14px;
      line-height: 1.7;
      max-width: 860px;
    }

    .faq-item.open .faq-a { display: block; }

    /* FAQ — sommaire et CTA final */
    .faq-toc {
      background: rgba(184, 232, 58, 0.04);
      border-top: 1px solid rgba(184, 232, 58, 0.18);
      border-bottom: 1px solid rgba(184, 232, 58, 0.18);
    }

    .faq-toc-list {
      list-style: none;
      margin: 0;
      padding: 0;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 8px 16px;
    }

    .faq-toc-list a {
      color: var(--lime);
      text-decoration: none;
      font-size: 14px;
      padding: 6px 0;
      display: inline-block;
      border-bottom: 1px solid transparent;
      transition: border-color 0.15s ease;
    }

    .faq-toc-list a:hover {
      border-bottom-color: var(--lime);
    }

    .faq-cta-block {
      text-align: center;
    }

    .faq-cta-block .section-title {
      margin-bottom: 12px;
    }

    .faq-cta-text {
      color: var(--fog);
      font-size: 15px;
      line-height: 1.6;
      max-width: 600px;
      margin: 0 auto 20px;
    }

    /* Corp page: secondary orange accent for a more B2B tone */
    #page-corp .price-strip,
    [data-hero="corp"] ~ .section .price-strip,
    .price-strip.corp {
      background: rgba(232, 84, 10, 0.07);
      border-color: rgba(232, 84, 10, 0.28);
    }

    #page-corp .price-strip .cta,
    [data-hero="corp"] ~ .section .price-strip .cta,
    .price-strip.corp .cta {
      background: var(--orange);
      color: var(--cream);
    }

    #page-corp .price-main em,
    [data-hero="corp"] ~ .section .price-main em,
    .price-strip.corp .price-main em { color: var(--orange); }

    .site-footer {
      margin: 18px 0 32px;
      border-radius: 12px;
      border: 1px solid var(--steel);
      background: #070807;
      padding: 20px;
      color: var(--mist);
      font-size: 13px;
    }

    @media (max-width: 980px) {
      .site-nav-inner {
        flex-wrap: wrap;
        height: auto;
        padding: 12px 0;
      }

      .site-links { width: 100%; }
      .nav-actions { margin-left: auto; }
      .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .grid-4, .timeline { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .grid-3 { grid-template-columns: 1fr; }
      .grid-2 { grid-template-columns: 1fr; }
      .price-strip { flex-direction: column; align-items: flex-start; }
    }

    @media (max-width: 640px) {
      .container { width: calc(100% - 20px); }
      .hero { min-height: 320px; }
      .hero-content, .section { padding: 18px; }
      .tabs { padding: 6px; }
      .tab { font-size: 11px; padding: 9px 10px; }
      .logo-text { font-size: 22px; }
      .logo-mark { width: 38px; height: 38px; }
      .logo-mark svg,
      .logo-mark img,
      .logo-mark .logo-dice { width: 22px; height: 22px; }
      .grid-4, .timeline, .stats { grid-template-columns: 1fr; }
      .cta { width: 100%; }
      .hero-actions .cta.secondary { width: 100%; }
    }

    /* Contact modal */
    .contact-modal {
      position: fixed; inset: 0; z-index: 100;
      display: flex; align-items: center; justify-content: center; padding: 20px;
    }
    .contact-modal[hidden] { display: none; }
    .contact-modal-backdrop {
      position: absolute; inset: 0;
      background: rgba(7, 8, 7, 0.78);
      backdrop-filter: blur(6px);
    }
    .contact-modal-card {
      position: relative;
      width: min(560px, 100%);
      max-height: calc(100vh - 40px);
      overflow-y: auto;
      background: var(--ink);
      border: 1px solid rgba(184, 232, 58, 0.22);
      border-radius: 14px;
      padding: 28px;
    }
    .contact-modal-close {
      position: absolute; top: 10px; right: 12px;
      background: transparent; border: 0; color: var(--fog);
      font-size: 26px; cursor: pointer; line-height: 1;
    }
    .contact-modal-title {
      font-family: 'Syne', sans-serif; font-size: 22px; color: var(--cream);
      margin-bottom: 6px;
    }
    .contact-modal-sub { color: var(--fog); font-size: 14px; margin-bottom: 18px; }
    .contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .contact-field { display: flex; flex-direction: column; gap: 6px; }
    .contact-field.full { grid-column: 1 / -1; }
    .contact-field label {
      font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
      color: var(--mist);
    }
    .contact-field input, .contact-field select, .contact-field textarea {
      background: var(--steel); border: 1px solid var(--plate);
      border-radius: 8px; color: var(--cream);
      padding: 10px 12px; font: inherit; font-family: 'Space Grotesk', sans-serif;
    }
    .contact-field input:focus, .contact-field select:focus, .contact-field textarea:focus {
      outline: none; border-color: var(--lime);
    }
    .contact-field.invalid input,
    .contact-field.invalid select,
    .contact-field.invalid textarea {
      border-color: #f87171;
    }
    .contact-field-error {
      color: #f87171; font-size: 12px; min-height: 14px;
    }
    .contact-submit { grid-column: 1 / -1; margin-top: 6px; }
    .contact-feedback { grid-column: 1 / -1; font-size: 13px; min-height: 18px; }
    .contact-feedback.success { color: var(--lime); }
    .contact-feedback.error { color: #f87171; }
    @media (max-width: 640px) {
      .contact-form { grid-template-columns: 1fr; }
      .contact-modal-card { padding: 22px 18px; }
    }