/* Capsule School: extension isolée, sans masquer les crédits Chamilo. */
.platform-logo img{width:280px;max-width:100%;height:auto;object-fit:contain}
body{padding-bottom:calc(78px + env(safe-area-inset-bottom,0px))}
.capsule-portal-return{position:fixed;bottom:calc(16px + env(safe-area-inset-bottom,0px));left:16px;z-index:1100;display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;max-width:calc(100vw - 32px);padding:11px 18px;border:1px solid #d6d0e6;border-radius:28px;background:#fff;color:#4e3f88;font:600 14px/1.4 system-ui,sans-serif;text-decoration:none;box-shadow:0 3px 16px #282d2a20;touch-action:manipulation}
.capsule-portal-return:hover{background:#f0edf8;color:#382a69}
.capsule-portal-return:focus-visible{outline:3px solid #6555aa;outline-offset:4px}
@media(max-width:600px){.platform-logo img{width:220px}.capsule-portal-return{left:12px;bottom:calc(12px + env(safe-area-inset-bottom,0px));padding:10px 15px}}
@media print{.capsule-portal-return{display:none}body{padding-bottom:0}}