<style>
        /* CSS isolé pour la popup PPIA - Ne pas toucher au reste du site */
        
        #ppiaModal {
            --ppia-primary: #2563eb;
            --ppia-accent: #06b6d4;
            --ppia-bg-overlay: rgba(15, 23, 42, 0.75);
            --ppia-modal-bg: #ffffff;
            --ppia-text-primary: #0f172a;
            --ppia-text-secondary: #475569;
            --ppia-border: rgba(148, 163, 184, 0.2);
        }

        #ppiaModal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            display: none; /* Caché par défaut */
            align-items: center;
            justify-content: center;
            z-index: 999999;
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        }

        /* Arrière-plan avec blur et transparence claire */
        #ppiaModal::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(15, 23, 42, 0.4);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            z-index: -1;
        }

        #ppiaModal.ppia-show {
            display: flex;
            animation: ppiaFadeIn 0.4s ease-out forwards;
        }

        @keyframes ppiaFadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }

        #ppiaModal.ppia-closing {
            animation: ppiaFadeOut 0.3s ease-out forwards;
        }

        @keyframes ppiaFadeOut {
            to { opacity: 0; }
        }

        #ppiaModal .ppia-modal-box {
            background: var(--ppia-modal-bg);
            border-radius: 24px;
            max-width: 520px;
            width: 100%;
            position: relative;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
            overflow: hidden;
            transform: scale(0.9) translateY(20px);
            animation: ppiaModalEntry 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.1s forwards;
            margin: 20px;
            isolation: isolate; /* Empêcher le blur parent d'affecter les enfants */
        }

        @keyframes ppiaModalEntry {
            to {
                transform: scale(1) translateY(0);
            }
        }

        #ppiaModal.ppia-closing .ppia-modal-box {
            animation: ppiaModalExit 0.3s ease-out forwards;
        }

        @keyframes ppiaModalExit {
            to {
                transform: scale(0.95) translateY(10px);
                opacity: 0;
            }
        }

        #ppiaModal .ppia-header-bar {
            height: 6px;
            background: linear-gradient(90deg, var(--ppia-primary), var(--ppia-accent), var(--ppia-primary));
            background-size: 200% 100%;
            animation: ppiaGradientMove 3s ease infinite;
        }

        @keyframes ppiaGradientMove {
            0%, 100% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
        }

        #ppiaModal .ppia-btn-close {
            position: absolute;
            top: 20px;
            right: 20px;
            width: 36px;
            height: 36px;
            border: none;
            background: rgba(148, 163, 184, 0.1);
            border-radius: 50%;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
            z-index: 10;
        }

        #ppiaModal .ppia-btn-close:hover {
            background: rgba(148, 163, 184, 0.2);
            transform: rotate(90deg);
        }

        #ppiaModal .ppia-btn-close::before,
        #ppiaModal .ppia-btn-close::after {
            content: '';
            position: absolute;
            width: 16px;
            height: 2px;
            background: var(--ppia-text-secondary);
            border-radius: 1px;
        }

        #ppiaModal .ppia-btn-close::before {
            transform: rotate(45deg);
        }

        #ppiaModal .ppia-btn-close::after {
            transform: rotate(-45deg);
        }

        #ppiaModal .ppia-modal-content {
            padding: 48px 40px 40px;
            background: cornsilk;
        }

        #ppiaModal .ppia-icon-box {
            width: 64px;
            height: 64px;
            background: linear-gradient(135deg, var(--ppia-primary), var(--ppia-accent));
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
            position: relative;
            animation: ppiaIconPulse 2s ease-in-out infinite;
        }

        @keyframes ppiaIconPulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.05); }
        }

        #ppiaModal .ppia-icon-box::after {
            content: '';
            position: absolute;
            inset: -4px;
            background: dodgerblue;
            border-radius: 18px;
            /*opacity: 0.2;*/
            z-index: -1;
            /*filter: blur(8px);*/
        }

        #ppiaModal .ppia-icon-box svg {
            width: 32px;
            height: 32px;
            fill: white;
        }

        #ppiaModal .ppia-modal-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--ppia-text-primary);
            margin-bottom: 12px;
            line-height: 1.2;
            letter-spacing: -0.02em;
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
        }

        #ppiaModal .ppia-modal-subtitle {
            font-size: 18px;
            color: var(--ppia-text-secondary);
            margin-bottom: 18px;
            line-height: 1.6;
            font-weight: 400;
        }

        #ppiaModal .ppia-modal-subtitle2 {
            font-size: 18px;
            color: dodgerblue;
            margin-bottom: 18px;
            line-height: 1.6;
            font-weight: 400;
        }

        #ppiaModal .ppia-features-list {
            list-style: none !important;
            margin: 0 0 32px 0 !important;
            padding: 0 !important;
            display: flex !important;
            flex-direction: column !important;
            gap: 14px !important;
        }

        #ppiaModal .ppia-features-list li {
            display: flex !important;
            align-items: flex-start !important;
            gap: 12px !important;
            font-size: 15px !important;
            color: var(--ppia-text-secondary) !important;
            line-height: 1.5 !important;
            padding-left: 4px !important;
            /*opacity: 0 !important;*/
            animation: ppiaSlideIn 0.5s ease-out forwards !important;
        }

        #ppiaModal .ppia-features-list li:nth-child(1) { animation-delay: 0.4s; }
        #ppiaModal .ppia-features-list li:nth-child(2) { animation-delay: 0.5s; }
        #ppiaModal .ppia-features-list li:nth-child(3) { animation-delay: 0.6s; }
        #ppiaModal .ppia-features-list li:nth-child(4) { animation-delay: 0.7s; }
        #ppiaModal .ppia-features-list li:nth-child(5) { animation-delay: 0.8s; }

        @keyframes ppiaSlideIn {
            from {
                opacity: 0;
                transform: translateX(-10px);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

        #ppiaModal .ppia-features-list li::before {
            content: '✓' !important;
            display: flex !important;
            align-items: center !important;
            justify-content: center !important;
            width: 20px !important;
            height: 20px !important;
            background: linear-gradient(135deg, #2563eb, #06b6d4) !important;
            color: #ffffff !important;
            border-radius: 50% !important;
            font-size: 12px !important;
            font-weight: 700 !important;
            flex-shrink: 0 !important;
            margin-top: 1px !important;
        }

        #ppiaModal .ppia-cta-buttons {
            display: flex !important;
            gap: 12px !important;
            flex-wrap: wrap !important;
        }

        #ppiaModal .ppia-btn-action {
            flex: 1 !important;
            min-width: 140px !important;
            padding: 14px 28px !important;
            border-radius: 12px !important;
            font-family: 'Inter', sans-serif !important;
            font-size: 16px !important;
            font-weight: 600 !important;
            cursor: pointer !important;
            transition: all 0.3s ease !important;
            border: none !important;
            text-decoration: none !important;
            text-align: center !important;
            display: inline-flex !important;
            align-items: center !important;
            justify-content: center !important;
        }

        #ppiaModal .ppia-btn-primary {
            background: linear-gradient(135deg, #2563eb, #06b6d4) !important;
            color: #ffffff !important;
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3) !important;
        }

        #ppiaModal .ppia-btn-primary:hover {
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4) !important;
            transform: translateY(-2px) !important;
            color: #ffffff !important;
        }

        #ppiaModal .ppia-btn-secondary {
            background: rgb(148 163 184 / 19%) !important;
            color: var(--ppia-text-primary) !important;
            border: 1.5px solid var(--ppia-border) !important;
        }

        #ppiaModal .ppia-btn-secondary:hover {
            background: rgba(148, 163, 184, 0.15) !important;
        }

        #ppiaModal .ppia-disclaimer {
            font-size: 13px;
            color: var(--ppia-text-secondary);
            text-align: center;
            margin-top: 16px;
            opacity: 0.8;
        }

        @media (max-width: 640px) {
            #ppiaModal .ppia-modal-box {
                max-width: calc(100% - 40px);
            }

            #ppiaModal .ppia-modal-content {
                padding: 40px 28px 32px;
            }

            #ppiaModal .ppia-modal-title {
                font-size: 22px;
            }

            #ppiaModal .ppia-modal-subtitle {
                font-size: 14px;
            }

            #ppiaModal .ppia-modal-subtitle2 {
                font-size: 14px;
            }

            #ppiaModal .ppia-cta-buttons {
                flex-direction: column;
            }

            #ppiaModal .ppia-btn-action {
                width: 100%;
            }
        }
    </style>