:root{--blue:#123f82;--gold:#f5ad16;--dark:#071a32;--light:#f6f9ff}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#f4f7fb;color:#102033}.platform-header{background:linear-gradient(120deg,#071a32,#123f82);color:white;padding:24px 7%;display:flex;align-items:center;justify-content:space-between;gap:20px}.platform-header img{height:54px;background:white;border-radius:10px;padding:6px}.platform-header nav a{color:white;text-decoration:none;margin:0 8px;font-weight:700}.platform-main{padding:42px 7%;max-width:1200px;margin:auto}.hero-panel{background:white;border-radius:28px;padding:36px;box-shadow:0 20px 50px rgba(0,0,0,.08);margin-bottom:28px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(245px,1fr));gap:20px}.card{background:white;border-radius:22px;padding:24px;box-shadow:0 14px 34px rgba(0,0,0,.08);border:1px solid #e7edf8}.btn,.card a,button{display:inline-block;background:var(--gold);color:#06172d;border:0;border-radius:999px;padding:12px 18px;font-weight:800;text-decoration:none;cursor:pointer}.btn-blue{background:var(--blue);color:#fff}input,select,textarea{width:100%;padding:13px;border:1px solid #d6deed;border-radius:14px;margin:8px 0;box-sizing:border-box}table{width:100%;border-collapse:collapse;background:white;border-radius:18px;overflow:hidden}th,td{padding:12px;border-bottom:1px solid #e5ebf4;text-align:left}.muted{color:#64748b}.badge{display:inline-block;background:#eaf2ff;color:#123f82;border-radius:99px;padding:6px 10px;font-weight:700}.footer{text-align:center;padding:25px;color:#64748b}.premium-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px}.premium-card{background:rgba(255,255,255,.92);border:1px solid rgba(18,63,130,.12);box-shadow:0 18px 45px rgba(7,26,50,.09);border-radius:24px;padding:25px}.chatbot-box{position:fixed;right:20px;bottom:90px;z-index:99}.chatbot-toggle{background:#123f82;color:#fff}.chatbot-window{display:none;width:330px;background:white;border-radius:22px;box-shadow:0 20px 55px rgba(0,0,0,.18);overflow:hidden}.chatbot-box.open .chatbot-window{display:block}.chatbot-head{display:flex;justify-content:space-between;align-items:center;background:#123f82;color:#fff;padding:14px 18px}.chatbot-messages{padding:16px;max-height:180px;overflow:auto}.chatbot-actions{padding:12px;display:grid;gap:8px}.chatbot-actions button{border-radius:12px;background:#f5ad16}.chatbot-close{background:transparent;color:#fff;font-size:24px;padding:0}


/* Système de versionnement Solstice v2.2.0 */
.solstice-update-banner{position:fixed;left:18px;right:18px;bottom:18px;z-index:99999;background:#052f4f;color:#fff;border:1px solid rgba(255,255,255,.18);box-shadow:0 18px 50px rgba(0,0,0,.25);border-radius:16px;padding:14px 18px;display:flex;align-items:center;justify-content:space-between;gap:14px;font-weight:700}
.solstice-update-banner button{border:0;border-radius:999px;background:#14b8a6;color:#fff;padding:10px 16px;font-weight:800;cursor:pointer}
.solstice-update-banner small{display:block;opacity:.82;font-weight:500;margin-top:3px}
@media(max-width:700px){.solstice-update-banner{flex-direction:column;align-items:flex-start}}

/* SOLSTICE PLATFORM RESPONSIVE v2.2.0 */
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;overflow-x:hidden}body{overflow-x:hidden}img,iframe{max-width:100%;height:auto}input,select,textarea,button{font-size:16px;max-width:100%}button,a{min-height:44px;touch-action:manipulation}.platform-header{gap:18px}.platform-header nav{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}.platform-header nav a{white-space:nowrap}.grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))!important}.card{overflow:auto}table{width:100%;border-collapse:collapse}table{display:block;overflow-x:auto;white-space:nowrap}
@media(max-width:900px){.platform-header{flex-direction:column;align-items:center;text-align:center;padding:18px!important}.platform-header img{max-width:220px}.platform-header nav{justify-content:center}.platform-main{padding:28px 5%!important}.hero-panel{padding:28px!important;border-radius:22px!important}.hero-panel h1{font-size:clamp(30px,8vw,46px)!important}.grid{grid-template-columns:1fr!important}.card{border-radius:20px!important;padding:22px!important}}
@media(max-width:480px){.platform-header nav a{width:100%;text-align:center}.platform-main{padding:22px 14px!important}.card{padding:18px!important}.footer{padding:22px 14px!important}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important;transition-duration:.01ms!important}}