    :root {
      --navy:   #0b1a2e;
      --deep:   #0d2240;
      --teal:   #0fbfad;
      --gold:   #d4a843;
      --water:  #1a9db0;
      --light:  #e8f4f8;
      --white:  #ffffff;
      --text:   #1c2b3a;
      --muted:  #5a7a8a;
      --radius: 12px;
      --shadow: 0 8px 40px rgba(11,26,46,.18);
    }
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body { font-family: 'DM Sans', sans-serif; color: var(--text); background: var(--white); overflow-x: hidden; }
    a { text-decoration: none; color: inherit; }
    img { max-width: 100%; display: block; }
    ul { list-style: none; }

    /* ── NAV ── */
    nav {
      position: fixed; top: 0; left: 0; width: 100%; z-index: 900;
      background: rgba(11,26,46,.92); backdrop-filter: blur(14px);
      display: flex; align-items: center; justify-content: space-between;
      padding: 0 6vw; height: 70px;
      border-bottom: 1px solid rgba(15,191,173,.15);
    }
    .nav-logo { display: flex; align-items: center; gap: .75rem; }
    .nav-logo img { height: 36px; width: auto; }
    .nav-logo span { font-family: 'Playfair Display', serif; font-size: 1.1rem; color: var(--teal); }
    .nav-links { display: flex; gap: 2.2rem; align-items: center; }
    .nav-links a { color: rgba(255,255,255,.8); font-size: .88rem; font-weight: 500; letter-spacing: .05em; text-transform: uppercase; transition: color .2s; }
    .nav-links a:hover { color: var(--teal); }
    .nav-cta { background: var(--teal); color: var(--navy) !important; padding: .5rem 1.2rem; border-radius: 100px; font-weight: 600 !important; transition: background .2s, transform .15s !important; }
    .nav-cta:hover { background: var(--gold); transform: scale(1.04); }
    .nav-burger { display: none; cursor: pointer; flex-direction: column; gap: 5px; }
    .nav-burger span { display: block; width: 26px; height: 2px; background: var(--white); border-radius: 2px; }

    /* ── HERO ── */
    .hero {
      min-height: 100vh;
      background:
        linear-gradient(155deg, rgba(11,26,46,.88) 0%, rgba(13,34,64,.65) 45%, rgba(15,191,173,.08) 100%),
        url('/assets/aquabike_geneve_mix.png') center/cover no-repeat;
      display: flex; align-items: center;
      padding: 120px 6vw 100px;
      position: relative; overflow: hidden;
    }
    .hero::after {
      content: ''; position: absolute; bottom: 0; left: 0; right: 0;
      height: 140px; background: linear-gradient(to bottom, transparent, var(--white));
    }
    .hero-content { max-width: 660px; position: relative; z-index: 2; }
    .hero-badge {
      display: inline-flex; align-items: center; gap: .5rem;
      background: rgba(15,191,173,.15); border: 1px solid var(--teal);
      color: var(--teal); font-size: .78rem; font-weight: 600; letter-spacing: .1em;
      text-transform: uppercase; padding: .4rem 1rem; border-radius: 100px;
      margin-bottom: 1.5rem; animation: fadeUp .6s ease both;
    }
    .hero h1 { font-family: 'Playfair Display', serif; font-size: clamp(2.4rem, 5.5vw, 4rem); line-height: 1.12; color: var(--white); margin-bottom: 1.2rem; animation: fadeUp .7s .1s ease both; }
    .hero h1 em { color: var(--teal); font-style: italic; }
    .hero p { font-size: 1.05rem; line-height: 1.7; color: rgba(255,255,255,.78); margin-bottom: .8rem; animation: fadeUp .7s .2s ease both; }
    .hero-private-tag {
      display: inline-flex; align-items: center; gap: .4rem;
      background: rgba(212,168,67,.15); border: 1px solid rgba(212,168,67,.4);
      color: var(--gold); font-size: .82rem; font-weight: 600;
      padding: .35rem .9rem; border-radius: 100px; margin-bottom: 1.8rem;
      animation: fadeUp .7s .25s ease both;
    }
    .hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; animation: fadeUp .7s .3s ease both; }
    .btn-primary { background: var(--teal); color: var(--navy); font-weight: 700; font-size: .95rem; padding: .85rem 2rem; border-radius: 100px; border: none; cursor: pointer; transition: background .2s, transform .15s, box-shadow .2s; box-shadow: 0 4px 20px rgba(15,191,173,.35); }
    .btn-primary:hover { background: var(--gold); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(212,168,67,.4); }
    .btn-secondary { background: transparent; color: var(--white); font-weight: 500; font-size: .95rem; padding: .85rem 2rem; border-radius: 100px; border: 1px solid rgba(255,255,255,.35); cursor: pointer; transition: border-color .2s, color .2s; }
    .btn-secondary:hover { border-color: var(--teal); color: var(--teal); }
    .btn-booking { display: inline-flex; align-items: center; gap: .55rem; color: rgba(255,255,255,.7); font-size: .88rem; font-weight: 500; text-decoration: none; border-bottom: 1px solid rgba(255,255,255,.25); padding-bottom: .15rem; transition: color .2s, border-color .2s; letter-spacing: .01em; }
    .btn-booking:hover { color: var(--teal); border-color: var(--teal); }
    .hero-stats { display: flex; gap: 3rem; margin-top: 3rem; animation: fadeUp .7s .4s ease both; flex-wrap: wrap; }
    .stat-item { text-align: left; }
    .stat-num { font-family: 'Playfair Display', serif; font-size: 2.2rem; font-weight: 700; color: var(--teal); line-height: 1; }
    .stat-label { font-size: .78rem; color: rgba(255,255,255,.6); text-transform: uppercase; letter-spacing: .07em; margin-top: .3rem; }

    /* ── PRIVATE BANNER ── */
    .private-banner {
      background: var(--navy);
      padding: 1.4rem 6vw;
      display: flex; align-items: center; justify-content: center;
      gap: 3rem; flex-wrap: wrap;
    }
    .pb-item { display: flex; align-items: center; gap: .7rem; color: rgba(255,255,255,.85); font-size: .88rem; font-weight: 500; }
    .pb-item span:first-child { font-size: 1.3rem; }
    .pb-divider { width: 1px; height: 24px; background: rgba(255,255,255,.15); }

    /* ── SECTION SHARED ── */
    section { padding: 100px 6vw; }
    .section-label { font-size: .75rem; font-weight: 700; letter-spacing: .15em; text-transform: uppercase; color: var(--teal); margin-bottom: .75rem; }
    .section-title { font-family: 'Playfair Display', serif; font-size: clamp(1.8rem, 3.5vw, 2.8rem); color: var(--navy); line-height: 1.2; margin-bottom: 1rem; }
    .section-sub { font-size: 1rem; color: var(--muted); line-height: 1.7; max-width: 560px; }
    .section-header { margin-bottom: 3.5rem; }
    .centered { text-align: center; }
    .centered .section-sub { margin: 0 auto; }

    /* ── BENEFITS ── */
    .benefits { background: var(--light); }
    .benefits-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.5rem; }
    .benefit-card { background: var(--white); border-radius: var(--radius); padding: 2rem; box-shadow: 0 2px 16px rgba(11,26,46,.06); border: 1px solid rgba(15,191,173,.1); transition: transform .25s, box-shadow .25s; }
    .benefit-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
    .benefit-icon { width: 52px; height: 52px; background: linear-gradient(135deg, rgba(15,191,173,.15), rgba(26,157,176,.1)); border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 1.6rem; margin-bottom: 1.2rem; }
    .benefit-card h3 { font-family: 'Playfair Display', serif; font-size: 1.1rem; color: var(--navy); margin-bottom: .6rem; }
    .benefit-card p { font-size: .9rem; color: var(--muted); line-height: 1.65; }

    /* ── HOW IT WORKS ── */
    .how { background: var(--white); }
    .how-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: center; }
    .how-visual { position: relative; border-radius: 20px; overflow: hidden; aspect-ratio: 4/5; box-shadow: var(--shadow); }
    .how-visual img { width: 100%; height: 100%; object-fit: cover; }
    .how-visual video { width: 100%; height: 100%; object-fit: cover; }
    .how-badge { position: absolute; bottom: 2rem; left: 2rem; background: rgba(11,26,46,.88); backdrop-filter: blur(10px); color: var(--white); padding: 1rem 1.5rem; border-radius: var(--radius); border: 1px solid rgba(15,191,173,.25); }
    .how-badge strong { font-size: 1.4rem; color: var(--teal); display: block; }
    .how-badge span { font-size: .8rem; color: rgba(255,255,255,.7); }
    .yt-thumb { position: relative; width: 100%; height: 100%; cursor: pointer; display: block; }
    .yt-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s; }
    .yt-thumb:hover img { transform: scale(1.03); }
    .yt-play { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; background: rgba(0,0,0,.15); transition: background .2s; }
    .yt-thumb:hover .yt-play { background: rgba(0,0,0,.3); }
    .yt-thumb iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: none; }
    .how-steps { display: flex; flex-direction: column; gap: 2rem; }
    .step { display: flex; gap: 1.2rem; align-items: flex-start; }
    .step-num { flex-shrink: 0; width: 42px; height: 42px; background: var(--teal); color: var(--navy); font-weight: 700; font-size: 1rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; }
    .step-content h4 { font-size: 1rem; font-weight: 600; color: var(--navy); margin-bottom: .35rem; }
    .step-content p { font-size: .88rem; color: var(--muted); line-height: 1.6; }

    /* ── CABINES — PHOTO GALLERY ── */
    .cabines { background: var(--navy); }
    .cabines .section-title { color: var(--white); }
    .cabines .section-label { color: var(--teal); }
    .cabines .section-sub { color: rgba(255,255,255,.65); }

    /* Private callout box */
    .private-callout {
      display: flex; gap: 1.5rem; align-items: flex-start; flex-wrap: wrap;
      background: rgba(15,191,173,.07);
      border: 1px solid rgba(15,191,173,.25);
      border-left: 4px solid var(--teal);
      border-radius: var(--radius);
      padding: 1.8rem 2rem;
      margin-bottom: 3rem;
    }
    .pc-feature { flex: 1; min-width: 160px; display: flex; gap: .8rem; align-items: flex-start; }
    .pc-icon { font-size: 1.8rem; flex-shrink: 0; }
    .pc-text strong { display: block; font-size: .9rem; color: var(--teal); margin-bottom: .25rem; }
    .pc-text span { font-size: .82rem; color: rgba(255,255,255,.65); line-height: 1.5; }

    /* Gallery grid */
    .cabines-gallery {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      grid-template-rows: 260px 260px;
      gap: 12px;
      border-radius: 16px; overflow: hidden;
      margin-bottom: 3rem;
    }
    .gal-item { overflow: hidden; position: relative; }
    .gal-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
    .gal-item:hover img { transform: scale(1.05); }
    .gal-item.tall { grid-row: 1 / 3; }
    .gal-item .gal-label {
      position: absolute; bottom: 0; left: 0; right: 0;
      background: linear-gradient(transparent, rgba(11,26,46,.8));
      color: var(--white); font-size: .78rem; font-weight: 600;
      padding: 1.5rem .9rem .7rem;
      letter-spacing: .04em; text-transform: uppercase;
    }

    /* Tech feature cards */
    .cabines-tech { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1.2rem; }
    .tech-card { border-radius: var(--radius); padding: 1.5rem; background: rgba(255,255,255,.05); border: 1px solid rgba(15,191,173,.12); text-align: center; transition: background .25s, border-color .25s; }
    .tech-card:hover { background: rgba(15,191,173,.08); border-color: var(--teal); }
    .tech-card .tech-icon { font-size: 2rem; margin-bottom: .8rem; }
    .tech-card h3 { font-family: 'Playfair Display', serif; font-size: .95rem; color: var(--teal); margin-bottom: .5rem; }
    .tech-card p { font-size: .8rem; color: rgba(255,255,255,.55); line-height: 1.55; }

    /* ── TARIFS ── */
    .tarifs { background: var(--light); }
    .tarifs-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.5rem; max-width: 900px; margin: 0 auto; }
    .tarif-card { background: var(--white); border-radius: var(--radius); padding: 2.5rem 2rem; box-shadow: 0 2px 16px rgba(11,26,46,.07); border: 2px solid transparent; text-align: center; transition: border-color .25s, transform .25s, box-shadow .25s; position: relative; }
    .tarif-card.featured { border-color: var(--teal); transform: scale(1.03); box-shadow: 0 12px 40px rgba(15,191,173,.2); }
    .tarif-badge { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--teal); color: var(--navy); font-size: .7rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; padding: .3rem .9rem; border-radius: 100px; }
    .tarif-card h3 { font-family: 'Playfair Display', serif; font-size: 1.15rem; color: var(--navy); margin-bottom: 1rem; }
    .tarif-price { font-size: 2.6rem; font-weight: 700; color: var(--navy); line-height: 1; }
    .tarif-price sup { font-size: 1.2rem; vertical-align: top; margin-top: .5rem; color: var(--muted); }
    .tarif-price span { font-size: .85rem; color: var(--muted); font-weight: 400; }
    .tarif-card ul { margin: 1.5rem 0; text-align: left; display: flex; flex-direction: column; gap: .7rem; }
    .tarif-card li { font-size: .88rem; color: var(--muted); display: flex; align-items: center; gap: .5rem; }
    .tarif-card li::before { content: '✓'; color: var(--teal); font-weight: 700; }

    /* ── TEMOIGNAGES ── */
    .temoignages { background: var(--white); }
    .temoignages-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }
    .temoignage-card { background: var(--light); border-radius: var(--radius); padding: 2rem; border-left: 4px solid var(--teal); }
    .stars { color: var(--gold); font-size: 1rem; margin-bottom: 1rem; letter-spacing: .1em; }
    .temoignage-card p { font-size: .92rem; color: var(--text); line-height: 1.7; margin-bottom: 1.2rem; font-style: italic; }
    .temoignage-author { display: flex; align-items: center; gap: .8rem; }
    .author-avatar { width: 40px; height: 40px; border-radius: 50%; background: linear-gradient(135deg, var(--teal), var(--water)); display: flex; align-items: center; justify-content: center; color: var(--white); font-weight: 700; font-size: .9rem; }
    .author-name { font-weight: 600; font-size: .9rem; color: var(--navy); }
    .author-role { font-size: .78rem; color: var(--muted); }

    /* ── CONTACT ── */
    .contact { background: var(--navy); }
    .contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: start; }
    .contact .section-title { color: var(--white); }
    .contact .section-label { color: var(--teal); }
    .contact .section-sub { color: rgba(255,255,255,.65); margin-bottom: 2rem; }
    .contact-info { display: flex; flex-direction: column; gap: 1.2rem; }
    .contact-item { display: flex; gap: 1rem; align-items: flex-start; }
    .contact-item-icon { width: 44px; height: 44px; flex-shrink: 0; background: rgba(15,191,173,.12); border: 1px solid rgba(15,191,173,.2); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; }
    .contact-item-text { display: flex; flex-direction: column; gap: .15rem; }
    .contact-item-text strong { font-size: .88rem; color: var(--teal); margin-bottom: .2rem; }
    .contact-item-text span { font-size: .9rem; color: rgba(255,255,255,.75); }
    .contact-form-box { background: rgba(255,255,255,.05); border: 1px solid rgba(15,191,173,.15); border-radius: 16px; padding: 2.5rem; }
    .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1rem; }
    .form-group { display: flex; flex-direction: column; gap: .4rem; margin-bottom: 1rem; }
    .form-group label { font-size: .8rem; font-weight: 600; color: rgba(255,255,255,.6); letter-spacing: .05em; text-transform: uppercase; }
    .form-group input, .form-group select, .form-group textarea { background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12); border-radius: 8px; padding: .75rem 1rem; color: var(--white); font-family: 'DM Sans', sans-serif; font-size: .92rem; outline: none; transition: border-color .2s; width: 100%; }
    .form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--teal); }
    .form-group input::placeholder, .form-group textarea::placeholder { color: rgba(255,255,255,.3); }
    .form-group select option { background: var(--navy); color: var(--white); }

    /* ── FOOTER ── */
    footer { background: #070f1a; padding: 3.5rem 6vw 2rem; color: rgba(255,255,255,.5); }
    .footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 3rem; margin-bottom: 2.5rem; }
    .footer-brand p { font-size: .85rem; line-height: 1.7; color: rgba(255,255,255,.45); margin-top: .8rem; }
    .footer-col h4 { font-size: .8rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--teal); margin-bottom: 1rem; }
    .footer-col li + li { margin-top: .55rem; }
    .footer-col a { font-size: .85rem; color: rgba(255,255,255,.5); transition: color .2s; }
    .footer-col a:hover { color: var(--teal); }
    .footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding-top: 1.5rem; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }
    .footer-bottom p { font-size: .78rem; }

    /* ── POPUP ── */
    .popup-overlay { position: fixed; inset: 0; z-index: 9999; background: rgba(7,15,26,.75); backdrop-filter: blur(6px); display: flex; align-items: center; justify-content: center; padding: 1.5rem; opacity: 0; pointer-events: none; transition: opacity .3s; }
    .popup-overlay.active { opacity: 1; pointer-events: all; }
    .popup-box { background: var(--white); border-radius: 20px; max-width: 480px; width: 100%; padding: 3rem 2.5rem; box-shadow: 0 30px 80px rgba(7,15,26,.5); position: relative; transform: scale(.92) translateY(20px); transition: transform .35s cubic-bezier(.34,1.56,.64,1); }
    .popup-overlay.active .popup-box { transform: scale(1) translateY(0); }
    .popup-close { position: absolute; top: 1.2rem; right: 1.2rem; background: var(--light); border: none; cursor: pointer; width: 34px; height: 34px; border-radius: 50%; font-size: 1.1rem; color: var(--muted); display: flex; align-items: center; justify-content: center; transition: background .2s, color .2s; }
    .popup-close:hover { background: var(--navy); color: var(--white); }
    .popup-icon { font-size: 2.8rem; margin-bottom: 1rem; }
    .popup-box h2 { font-family: 'Playfair Display', serif; font-size: 1.6rem; color: var(--navy); margin-bottom: .5rem; }
    .popup-box p { font-size: .9rem; color: var(--muted); line-height: 1.65; margin-bottom: 1.8rem; }
    .popup-form { display: flex; flex-direction: column; gap: .9rem; }
    .popup-field { display: flex; flex-direction: column; gap: .35rem; }
    .popup-field label { font-size: .75rem; font-weight: 600; color: var(--navy); letter-spacing: .06em; text-transform: uppercase; }
    .popup-field input { background: var(--light); border: 1.5px solid rgba(11,26,46,.1); border-radius: 10px; padding: .75rem 1rem; font-family: 'DM Sans', sans-serif; font-size: .95rem; color: var(--navy); outline: none; transition: border-color .2s, box-shadow .2s; }
    .popup-field input:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(15,191,173,.12); }
    .popup-field input::placeholder { color: rgba(11,26,46,.3); }
    .popup-submit { background: var(--teal); color: var(--navy); font-weight: 700; font-size: 1rem; padding: .9rem; border: none; border-radius: 100px; cursor: pointer; margin-top: .3rem; transition: background .2s, transform .15s; box-shadow: 0 4px 16px rgba(15,191,173,.3); }
    .popup-submit:hover { background: var(--gold); transform: translateY(-1px); }
    .popup-legal { font-size: .72rem; color: var(--muted); text-align: center; margin-top: .5rem; line-height: 1.5; }
    .popup-success { display: none; text-align: center; padding: 1rem 0; }
    .popup-success.show { display: block; }
    .popup-success h3 { font-family: 'Playfair Display', serif; font-size: 1.4rem; color: var(--navy); margin-bottom: .5rem; }

    /* ── FLOATING CTA ── */
    .floating-cta { position: fixed; bottom: 2rem; right: 2rem; z-index: 800; background: var(--teal); color: var(--navy); font-weight: 700; font-size: .88rem; padding: .85rem 1.6rem; border-radius: 100px; box-shadow: 0 6px 24px rgba(15,191,173,.5); cursor: pointer; border: none; display: flex; align-items: center; gap: .5rem; transition: background .2s, transform .15s; animation: pulse 2.5s infinite; }
    .floating-cta:hover { background: var(--gold); transform: scale(1.05); animation: none; }

    /* ── ANIMATIONS ── */
    @keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
    @keyframes pulse { 0%, 100% { box-shadow: 0 6px 24px rgba(15,191,173,.5); } 50% { box-shadow: 0 6px 36px rgba(15,191,173,.75); } }

    /* ── RESPONSIVE ── */
    @media (max-width: 1024px) {
      .cabines-gallery { grid-template-columns: 1fr 1fr; grid-template-rows: 220px 220px 220px; }
      .gal-item.tall { grid-row: 1 / 3; }
    }
    @media (max-width: 900px) {
      .how-layout { grid-template-columns: 1fr; }
      .how-visual { aspect-ratio: 16/9; }
      .contact-layout { grid-template-columns: 1fr; }
      .footer-top { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 640px) {
      section { padding: 70px 5vw; }
      .hero { padding: 110px 5vw 70px; }
      .hero-stats { gap: 1.8rem; }
      .nav-links { display: none; }
      .nav-burger { display: flex; }
      .form-row { grid-template-columns: 1fr; }
      .footer-top { grid-template-columns: 1fr; }
      .popup-box { padding: 2rem 1.5rem; }
      .private-banner { gap: 1.2rem; flex-direction: column; text-align: center; }
      .pb-divider { display: none; }
      .cabines-gallery { grid-template-columns: 1fr 1fr; grid-template-rows: repeat(3, 180px); }
      .gal-item.tall { grid-row: auto; }
    }
