
<style>
  @import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600&family=Inter:wght@400;500&display=swap');
  html{scroll-behavior:smooth;}
  *{margin:0;padding:0;box-sizing:border-box;}
  :root{
    --primary:#2e0052;
    --kappa-bg:#6b21b8;
    --kappa-dim:#c084fc;
    --primary-container:#4b0082;
    --surface:#fcf9f8;
    --surface-low:#f6f3f2;
    --surface-lowest:#ffffff;
    --surface-high:#eae7e7;
    --on-primary:#ffffff;
    --on-bg:#1c1b1b;
  }
  body{font-family:'Inter',sans-serif;background:var(--surface);color:var(--on-bg);}
  .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

  /* NAV */
  nav{display:flex;align-items:center;justify-content:space-between;padding:1rem 3rem;background:var(--surface-lowest);position:sticky;top:0;z-index:10;box-shadow:0 10px 40px rgba(28,27,27,0.04);}
  .nav-logo img{height:42px;width:auto;display:block;}
  .nav-links{display:flex;gap:2rem;list-style:none;}
  .nav-links a{font-size:0.8rem;letter-spacing:0.08em;text-transform:uppercase;color:var(--on-bg);text-decoration:none;opacity:0.6;}
  .btn-primary{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-container) 100%);color:#fff;border:none;padding:0.6rem 1.4rem;border-radius:4px;font-size:0.75rem;letter-spacing:0.1em;text-transform:uppercase;cursor:pointer;font-family:'Inter',sans-serif;font-weight:500;}

  /* HERO */
  .hero{padding:6rem 3rem 5rem;display:grid;grid-template-columns:1.2fr 1fr;gap:3rem;align-items:center;min-height:85vh;}
  .hero-eyebrow{font-size:0.7rem;letter-spacing:0.12em;text-transform:uppercase;color:var(--primary-container);opacity:0.8;margin-bottom:1.5rem;}
  .hero-eyebrow::before{content:'';display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--primary-container);margin-right:8px;vertical-align:middle;animation:pulse 2s ease-in-out infinite;}
  @keyframes pulse{0%,100%{opacity:1;}50%{opacity:0.3;}}
  .hero h1{font-family:'Space Grotesk',sans-serif;font-size:3.5rem;line-height:1.1;font-weight:600;margin-bottom:1.5rem;}
  .hero h1 em{color:var(--primary-container);font-style:normal;}
  .hero-sub{font-size:1rem;line-height:1.6;opacity:0.6;max-width:380px;margin-bottom:2.5rem;}
  .hero-visual{height:340px;display:flex;align-items:center;justify-content:center;}
  .glass-orb{width:260px;height:260px;border-radius:50%;background:rgba(75,0,130,0.08);border:1px solid rgba(221,183,255,0.25);display:flex;align-items:center;justify-content:center;position:relative;}
  .glass-orb::before{content:'';position:absolute;inset:20px;border-radius:50%;border:1px solid rgba(221,183,255,0.15);}
  .orb-dots{display:grid;grid-template-columns:1fr 1fr;gap:12px;position:relative;width:80px;height:80px;}
  .orb-dot{width:20px;height:20px;border-radius:50%;background:var(--primary-container);opacity:1;position:absolute;}
  .orb-dot:nth-child(1){left:0;top:0;}
  .orb-dot:nth-child(2){right:0;top:0;}
  .orb-dot:nth-child(3){left:0;bottom:-0;}
  .orb-dot:nth-child(4){right:0;bottom:0;}
  .orb-dot:nth-child(5){left:50%;top:50%;right:50%;bottom:50%;}

  /* EXPERTISE */
  .expertise{padding:5rem 3rem;background:var(--surface-low);}
  .section-label{font-size:0.7rem;letter-spacing:0.12em;text-transform:uppercase;color:var(--primary-container);margin-bottom:0.75rem;opacity:0.7;}
  .section-title{font-family:'Space Grotesk',sans-serif;font-size:2.2rem;font-weight:600;margin-bottom:3rem;}
  .cards-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:1px;background:rgba(206,195,211,0.15);}
  .card{background:var(--surface-low);padding:3rem 2.5rem;transition:background 0.3s;}
  .card:hover{background:var(--surface-lowest);}
  .card h3{font-family:'Space Grotesk',sans-serif;font-size:1.05rem;font-weight:500;margin-bottom:0.75rem;}
  .card p{font-size:0.88rem;line-height:1.65;opacity:0.55;}
  .card-icon{margin-bottom:1.75rem;}

  /* PHILOSOPHY */
  .philosophy{padding:5rem 3rem;background:var(--surface);display:grid;grid-template-columns:1fr 1.6fr;gap:5rem;align-items:start;}
  .phil-left h2{font-family:'Space Grotesk',sans-serif;font-size:2rem;font-weight:600;}
  .phil-quote{font-family:'Space Grotesk',sans-serif;font-size:1.5rem;font-weight:400;font-style:italic;color:var(--primary-container);line-height:1.4;margin-bottom:2.5rem;padding-left:1.5rem;border-left:3px solid var(--primary-container);}
  .phil-body{display:grid;grid-template-columns:1fr 1fr;gap:2rem;}
  .phil-body p{font-size:0.88rem;line-height:1.7;opacity:0.6;}

  /* KAPPA */
  .kappa{padding:5rem 3rem;background:var(--kappa-bg);display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center;}
  .kappa-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.2);border-radius:4px;padding:0.35rem 0.85rem;margin-bottom:1.5rem;}
  .kappa-badge-dot{width:6px;height:6px;border-radius:50%;background:#fff;animation:pulse 2s ease-in-out infinite;}
  .kappa-badge span{font-size:0.65rem;letter-spacing:0.14em;text-transform:uppercase;color:#fff;font-family:'Inter',sans-serif;font-weight:500;opacity:0.85;}
  .kappa h2{font-family:'Space Grotesk',sans-serif;font-size:2.75rem;font-weight:600;color:#fff;line-height:1.1;margin-bottom:1.25rem;}
  .kappa-tagline{font-size:1.05rem;line-height:1.65;color:#fff;opacity:0.75;margin-bottom:2.25rem;max-width:420px;font-style:italic;}
  .kappa-pillars{display:flex;flex-direction:column;gap:0.75rem;margin-bottom:2.25rem;}
  .kappa-pillar{display:flex;align-items:flex-start;gap:10px;}
  .pillar-dot{width:5px;height:5px;border-radius:50%;background:#c084fc;margin-top:7px;flex-shrink:0;}
  .kappa-pillar p{font-size:0.82rem;line-height:1.55;color:#fff;opacity:0.6;}
  .kappa-pillar strong{color:#fff;opacity:0.9;font-weight:500;}
  .btn-kappa{background:transparent;border:1px solid rgba(255,255,255,0.3);color:#fff;padding:0.75rem 1.75rem;border-radius:4px;font-size:0.75rem;letter-spacing:0.1em;text-transform:uppercase;cursor:pointer;font-family:'Inter',sans-serif;font-weight:500;transition:background 0.2s;}
  .btn-kappa:hover{background:rgba(255,255,255,0.1);}
  .kappa-visual{height:320px;display:flex;align-items:center;justify-content:center;}
  .kappa-glass{background-color:rgba(255,255,255,0.08);background-image:url('./image/kappa-project.png');background-size:100% 100%;background-position:center;background-repeat:no-repeat;background-attachment:fixed;border:1px solid rgba(255,255,255,0.15);border-radius:12px;padding:2.5rem;width:100%;height:100%;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden;}
  .kappa-glass::before{content:'';position:absolute;top:-40px;right:-40px;width:180px;height:180px;border-radius:50%;background:radial-gradient(circle,rgba(192,132,252,0.2) 0%,transparent 70%);}
  .glass-label{font-size:0.65rem;letter-spacing:0.12em;text-transform:uppercase;color:#fff;opacity:0.45;}
  .glass-stat{font-family:'Space Grotesk',sans-serif;font-size:1.6rem;font-weight:600;color:#fff;margin:0.25rem 0 0.15rem;}
  .glass-sub{font-size:0.75rem;color:#fff;opacity:0.4;}
  .glass-divider{height:1px;background:rgba(255,255,255,0.1);margin:1rem 0;}
  .glass-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:0.5rem;}
  .glass-tag{font-size:0.65rem;letter-spacing:0.08em;text-transform:uppercase;border:1px solid rgba(255,255,255,0.2);color:#fff;border-radius:3px;padding:3px 8px;opacity:0.65;}

  /* CONTACT */
  .contact{padding:5rem 3rem;background:var(--surface-high);}
  .contact-header{text-align:center;margin-bottom:3.5rem;}
  .contact-header h2{font-family:'Space Grotesk',sans-serif;font-size:2.2rem;font-weight:600;margin-bottom:0.75rem;}
  .contact-header p{font-size:0.95rem;line-height:1.6;opacity:0.55;max-width:480px;margin:0 auto;}
  .contact-form{background:var(--surface-lowest);padding:3rem;max-width:700px;margin:0 auto;}
  .form-row{display:grid;grid-template-columns:1fr 1fr;gap:2rem;margin-bottom:2rem;}
  .field{display:flex;flex-direction:column;gap:0.4rem;}
  .field label{font-size:0.65rem;letter-spacing:0.12em;text-transform:uppercase;opacity:0.45;}
  .field input,.field select,.field textarea{background:transparent;border:none;border-bottom:1px solid rgba(125,116,131,0.3);padding:0.6rem 0;font-size:0.9rem;color:var(--on-bg);font-family:'Inter',sans-serif;outline:none;transition:border-color 0.25s;}
  .field input:focus,.field select:focus,.field textarea:focus{border-bottom-color:var(--primary-container);}
  .field textarea{resize:none;height:90px;margin-bottom:2rem;}
  .form-actions{text-align:center;margin-top:2rem;}

  footer{padding:2rem 3rem;background:var(--surface);display:flex;justify-content:space-between;align-items:center;border-top:1px solid rgba(206,195,211,0.2);}
  .footer-logo{font-family:'Space Grotesk',sans-serif;font-size:0.85rem;font-weight:500;opacity:0.6;letter-spacing:0.08em;text-transform:uppercase;}
  .footer-links{display:flex;gap:2rem;}
  .footer-links a{font-size:0.75rem;opacity:0.4;text-decoration:none;}
  .footer-copy{font-size:0.75rem;opacity:0.35;}

  /* LOGO HERO */
  #logo{
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:0.75rem;
  }
  #vivadix-anim{
    font-family:'Space Grotesk',sans-serif;
    font-size:2.2rem;
    font-weight:700;
    letter-spacing:0.08em;
    line-height:1.2;
    color:#4b0082;
    text-align:center;
    overflow:hidden;
  }
  #vivadix-anim .word{
    display:inline-block;
    overflow:hidden;
    vertical-align:bottom;
    margin-right:0.3em;
  }
  #vivadix-tagline{
    font-family:'Inter',sans-serif;
    font-size:0.55rem;
    letter-spacing:0.3em;
    text-transform:uppercase;
    color:#4b0082;
    opacity:0;
  }

  /* MATERIAL SYMBOLS */
  .material-symbols-outlined{font-variation-settings:'FILL' 0,'wght' 300,'GRAD' 0,'opsz' 24;}

  /* GLASS PANEL */
  .glass-panel{background:rgba(252,249,248,0.85);backdrop-filter:blur(12px);}

  /* KAPPA GRADIENT */
  .kappa-gradient{background:linear-gradient(135deg,#2e0052 0%,#4b0082 100%);}

  /* TEXT GLOW */
  .text-glow:hover{text-shadow:0 0 15px rgba(221,183,255,0.4);}

  /* FLOATING LABEL */
  input:focus ~ label,input:not(:placeholder-shown) ~ label{transform:translateY(-1.5rem) scale(0.85);color:#4b0082;}

  /* NO SCROLLBAR */
  .no-scrollbar::-webkit-scrollbar{display:none;}

  /* HERO PARTICLES */
  .hero-particles{
    background-image:radial-gradient(#4b0082 1px,transparent 1px);
    background-size:40px 40px;
  }

  /* ── MODAL OVERLAY ── */
  .modal-overlay{
    display:none;
    position:fixed;
    inset:0;
    background:rgba(28,0,52,0.75);
    backdrop-filter:blur(6px);
    z-index:1000;
    align-items:center;
    justify-content:center;
    padding:2rem;
  }
  .modal-overlay.open{display:flex;}

  .modal{
    background:var(--surface-lowest);
    border-radius:12px;
    width:100%;
    max-width:580px;
    max-height:90vh;
    overflow-y:auto;
    position:relative;
    box-shadow:0 40px 80px rgba(28,0,52,0.35);
  }

  /* Modal header bande violette */
  .modal-head{
    background:var(--kappa-bg);
    padding:2rem 2.5rem 1.75rem;
    border-radius:12px 12px 0 0;
    position:relative;
  }
  .modal-head::after{
    content:'';
    position:absolute;
    bottom:-1px;left:0;right:0;
    height:20px;
    background:var(--surface-lowest);
    border-radius:20px 20px 0 0;
  }
  .modal-eyebrow{font-size:0.65rem;letter-spacing:0.14em;text-transform:uppercase;color:#c084fc;margin-bottom:0.5rem;}
  .modal-title{font-family:'Space Grotesk',sans-serif;font-size:1.5rem;font-weight:600;color:#fff;line-height:1.2;}
  .modal-close{
    position:absolute;top:1.25rem;right:1.25rem;
    background:rgba(255,255,255,0.15);
    border:none;border-radius:50%;
    width:32px;height:32px;
    display:flex;align-items:center;justify-content:center;
    cursor:pointer;color:#fff;font-size:1rem;line-height:1;
    transition:background 0.2s;
  }
  .modal-close:hover{background:rgba(255,255,255,0.25);}

  .modal-body{padding:2rem 2.5rem 2.5rem;}

  /* Champs modal */
  .m-row{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin-bottom:1.5rem;}
  .m-field{display:flex;flex-direction:column;gap:0.35rem;}
  .m-field label{font-size:0.65rem;letter-spacing:0.1em;text-transform:uppercase;color:var(--on-bg);opacity:0.45;}
  .m-field input{
    background:transparent;
    border:none;
    border-bottom:1px solid rgba(125,116,131,0.3);
    padding:0.55rem 0;
    font-size:0.9rem;
    color:var(--on-bg);
    font-family:'Inter',sans-serif;
    outline:none;
    transition:border-color 0.25s;
  }
  .m-field input:focus{border-bottom-color:var(--kappa-bg);}

  /* Séparateur calendrier */
  .cal-separator{
    display:flex;align-items:center;gap:1rem;
    margin:1.75rem 0 1.5rem;
  }
  .cal-separator::before,.cal-separator::after{
    content:'';flex:1;height:1px;background:rgba(125,116,131,0.15);
  }
  .cal-separator span{
    font-size:0.65rem;letter-spacing:0.1em;text-transform:uppercase;
    color:var(--on-bg);opacity:0.4;white-space:nowrap;
  }

  /* Calendrier */
  .cal-wrap{background:var(--surface-low);border-radius:8px;padding:1.5rem;}
  .cal-nav{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.25rem;}
  .cal-month{font-family:'Space Grotesk',sans-serif;font-size:0.95rem;font-weight:500;}
  .cal-arrow{background:transparent;border:1px solid rgba(125,116,131,0.2);border-radius:4px;width:28px;height:28px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:0.75rem;color:var(--on-bg);opacity:0.6;transition:opacity 0.2s;}
  .cal-arrow:hover{opacity:1;}
  .cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;}
  .cal-day-name{font-size:0.65rem;letter-spacing:0.06em;text-transform:uppercase;text-align:center;opacity:0.4;padding:4px 0;}
  .cal-day{
    aspect-ratio:1;display:flex;align-items:center;justify-content:center;
    font-size:0.82rem;border-radius:6px;cursor:pointer;
    transition:background 0.15s,color 0.15s;
    border:none;background:transparent;color:var(--on-bg);
    font-family:'Inter',sans-serif;
  }
  .cal-day:hover:not(.empty):not(.past){background:rgba(107,33,184,0.1);color:var(--kappa-bg);}
  .cal-day.selected{background:var(--kappa-bg);color:#fff;}
  .cal-day.today{font-weight:500;box-shadow:inset 0 0 0 1px var(--kappa-bg);color:var(--kappa-bg);}
  .cal-day.today.selected{color:#fff;box-shadow:none;}
  .cal-day.past{opacity:0.25;cursor:default;}
  .cal-day.empty{cursor:default;}

  /* Créneaux horaires */
  .time-label{font-size:0.65rem;letter-spacing:0.1em;text-transform:uppercase;color:var(--on-bg);opacity:0.45;margin:1.25rem 0 0.75rem;}
  .time-slots{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;}
  .time-slot{
    background:var(--surface-lowest);
    border:1px solid rgba(125,116,131,0.2);
    border-radius:4px;
    padding:0.45rem 0;
    font-size:0.78rem;
    text-align:center;
    cursor:pointer;
    color:var(--on-bg);
    opacity:0.7;
    font-family:'Inter',sans-serif;
    transition:all 0.15s;
  }
  .time-slot:hover{border-color:var(--kappa-bg);color:var(--kappa-bg);opacity:1;}
  .time-slot.selected{background:var(--kappa-bg);border-color:var(--kappa-bg);color:#fff;opacity:1;}

  /* Récapitulatif RDV */
  .rdv-recap{
    display:none;
    margin-top:1.25rem;
    background:rgba(107,33,184,0.06);
    border:1px solid rgba(107,33,184,0.15);
    border-radius:6px;
    padding:0.85rem 1rem;
    font-size:0.82rem;
    color:var(--kappa-bg);
    font-weight:500;
  }
  .rdv-recap.show{display:block;}

  /* Bouton submit */
  .btn-submit{
    width:100%;margin-top:1.75rem;
    background:linear-gradient(135deg,var(--primary) 0%,var(--kappa-bg) 100%);
    color:#fff;border:none;border-radius:4px;
    padding:0.85rem;
    font-size:0.8rem;letter-spacing:0.1em;text-transform:uppercase;
    cursor:pointer;font-family:'Inter',sans-serif;font-weight:500;
    transition:opacity 0.2s;
  }
  .btn-submit:hover{opacity:0.9;}

  /* Confirmation */
  .modal-confirm{display:none;text-align:center;padding:3rem 2.5rem;}
  .modal-confirm.show{display:block;}
  .modal-confirm svg{margin-bottom:1.25rem;}
  .modal-confirm h3{font-family:'Space Grotesk',sans-serif;font-size:1.35rem;font-weight:600;margin-bottom:0.75rem;color:var(--kappa-bg);}
  .modal-confirm p{font-size:0.9rem;line-height:1.6;opacity:0.6;max-width:360px;margin:0 auto;}
</style>