{
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
            color: #ffffff;
            line-height: 1.6;
            min-height: 100vh;
        }

        /* === HERO SECTION === */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            padding: 2rem;
            background:
                radial-gradient(circle at 30% 20%, rgba(96, 165, 250, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(168, 85, 247, 0.1) 0%, transparent 50%);
        }

        .hero-content {
            max-width: 1200px;
            width: 100%;
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 4rem;
            align-items: center;
        }

        .hero-text {
            /* Contient tout le texte */
        }

        .hero-image {
            justify-self: center;
        }

        .hero-image img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            background: rgba(96, 165, 250, 0.1);
            border: 1px solid rgba(96, 165, 250, 0.2);
            border-radius: 50px;
            padding: 0.5rem 1rem;
            margin-bottom: 2rem;
            font-size: 0.875rem;
            color: #60a5fa;
            font-weight: 500;
        }

        .hero h1 {
            font-size: clamp(3rem, 8vw, 6rem);
            font-weight: 700;
            line-height: 1.1;
            margin-bottom: 1.5rem;
            background: linear-gradient(135deg, #ffffff 0%, #60a5fa 50%, #a855f7 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero .subtitle {
            font-size: clamp(1.25rem, 3vw, 1.5rem);
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 3rem;
            font-weight: 400;
            max-width: 800px;
        }

        /* === PROJECT CARDS === */
        .project-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 2rem;
            margin: 4rem 0;
            grid-column: 1 / -1;
        }

        .project-card {
            background: rgba(255, 255, 255, 0.03);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 16px;
            padding: 2rem;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .project-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(96, 165, 250, 0.5), transparent);
        }

        .project-card:hover {
            transform: translateY(-8px);
            border-color: rgba(96, 165, 250, 0.3);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
        }

        /* Conteneur pour aligner icône et titre horizontalement */
        .card-header {
            display: flex;
            align-items: center;
            margin-bottom: 1.5rem;
            gap: 1rem;
        }

        .card-icon {
            width: 48px;
            height: 48px;
            background: linear-gradient(135deg, #60a5fa, #a855f7);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            flex-shrink: 0;
        }

        .project-card h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin: 0;
            color: #ffffff;
        }

        .project-card p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            line-height: 1.6;
            flex-grow: 1;
            clear: both; /* Évite que le paragraphe remonte à côté de l'icône flottante */
        }

        /* === STATS GRID === */
        .stats-container {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 3rem 2rem;
            margin: 4rem 0;
            backdrop-filter: blur(10px);
            grid-column: 1 / -1;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 3rem;
        }

        .stat-item {
            text-align: center;
        }

        .stat-number {
            font-size: 3rem;
            font-weight: 700;
            background: linear-gradient(135deg, #60a5fa, #a855f7);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: block;
            line-height: 1;
        }

        .stat-label {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.875rem;
            margin-top: 0.5rem;
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        /* === CTA SECTION === */
        .cta-section {
            text-align: center;
            margin-top: 4rem;
            grid-column: 1 / -1;
        }

        .cta-button {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #60a5fa, #a855f7);
            color: #ffffff;
            padding: 1rem 2rem;
            text-decoration: none;
            border-radius: 12px;
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.3s ease;
            box-shadow: 0 4px 20px rgba(96, 165, 250, 0.3);
        }

        .cta-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(96, 165, 250, 0.4);
        }

        /* === CODE SNIPPET === */
        .code-preview {
            background: #0d1117;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 12px;
            padding: 2rem;
            margin: 3rem 0;
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.875rem;
            overflow-x: auto;
            grid-column: 1 / -1;
        }

        .code-header {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 1rem;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.75rem;
        }

        .code-dots {
            display: flex;
            gap: 0.25rem;
        }

        .code-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
        }

        .code-dot.red { background: #ff5f56; }
        .code-dot.yellow { background: #ffbd2e; }
        .code-dot.green { background: #27ca3f; }

        .code-content {
            color: #e6edf3;
        }

        .code-key { color: #79c0ff; }
        .code-string { color: #a5d6ff; }
        .code-comment { color: #8b949e; }

        /* === RESPONSIVE === */
        @media (max-width: 768px) {
            .hero {
                padding: 1rem;
            }

            .hero-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .hero-image {
                order: -1;
            }

            .project-cards {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .stats-container {
                padding: 2rem 1rem;
            }

            .stats-grid {
                gap: 2rem;
            }
        }

        /* === ANIMATIONS === */
        .fade-in {
            animation: fadeInUp 0.8s ease-out forwards;
            opacity: 0;
            transform: translateY(30px);
        }

        .fade-in.delay-1 { animation-delay: 0.2s; }
        .fade-in.delay-2 { animation-delay: 0.4s; }
        .fade-in.delay-3 { animation-delay: 0.6s; }
        .fade-in.delay-4 { animation-delay: 0.8s !important; }

        @keyframes fadeInUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* PARTIE 2 */
        .challenge-section {
            padding: 4rem 2rem;
            background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
        }

        .challenge-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .section-header {
            text-align: center;
            margin-bottom: 4rem;
        }

        .section-title {
            font-size: clamp(2.5rem, 6vw, 4rem);
            font-weight: 700;
            background: linear-gradient(135deg, #ffffff 0%, #60a5fa 50%, #a855f7 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 1rem;
        }

        .section-subtitle {
            font-size: 1.25rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 800px;
            margin: 0 auto;
        }

        .challenge-grid {
            display: grid;
            gap: 3rem;
            margin-bottom: 4rem;
        }

        .challenge-card {
            background: rgba(255, 255, 255, 0.03);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 3rem;
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .challenge-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, rgba(96, 165, 250, 0.8), transparent);
        }

        .challenge-card:hover {
            transform: translateY(-5px);
            border-color: rgba(96, 165, 250, 0.3);
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
        }

        .challenge-header {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            margin-bottom: 2rem;
        }

        .challenge-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #60a5fa, #a855f7);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            flex-shrink: 0;
        }

        .challenge-title {
            font-size: 1.5rem;
            font-weight: 600;
            color: #ffffff;
        }

        .challenge-content {
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.6;
        }

        .challenge-content h4 {
            color: #60a5fa;
            font-weight: 600;
            margin: 1.5rem 0 0.5rem 0;
            font-size: 1.1rem;
        }

        .challenge-content p {
            margin-bottom: 1rem;
        }

        .quote {
            background: rgba(96, 165, 250, 0.1);
            border-left: 3px solid #60a5fa;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
            font-style: italic;
            color: rgba(255, 255, 255, 0.9);
        }

        .evolution-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
            margin: 1.5rem 0;
        }

        .evolution-step {
            background: rgba(0, 0, 0, 0.2);
            padding: 1rem;
            border-radius: 8px;
            border: 1px solid rgba(96, 165, 250, 0.2);
            text-align: center;
        }

        .step-title {
            font-weight: 600;
            color: #60a5fa;
            font-size: 0.9rem;
            margin-bottom: 0.5rem;
        }

        .step-content {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
        }

        /* === METRICS HIGHLIGHT === */
        .metrics-highlight {
            background: linear-gradient(135deg, rgba(96, 165, 250, 0.1), rgba(168, 85, 247, 0.1));
            border: 1px solid rgba(96, 165, 250, 0.2);
            border-radius: 20px;
            padding: 3rem;
            margin: 4rem 0;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 2rem;
        }

        .metric-item {
            text-align: center;
        }

        .metric-value {
            font-size: 2.5rem;
            font-weight: 700;
            background: linear-gradient(135deg, #60a5fa, #a855f7);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: block;
            line-height: 1;
        }

        .metric-label {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.8rem;
            margin-top: 0.5rem;
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        /* === FRAMEWORK BOX === */
        .framework-box {
            background: #0d1117;
            border: 1px solid rgba(96, 165, 250, 0.3);
            border-radius: 12px;
            padding: 2rem;
            margin: 2rem 0;
            font-family: 'JetBrains Mono', monospace;
        }

        .framework-header {
            color: #60a5fa;
            font-weight: 600;
            margin-bottom: 1rem;
            font-size: 0.9rem;
        }

        .framework-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin: 0.5rem 0;
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.85rem;
        }

        .checkmark {
            color: #27ca3f;
            font-weight: bold;
        }

                    /* === SKILLS SECTION === */
        .skills-section {
            padding: 4rem 2rem;
            background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
            position: relative;
        }

        .skills-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background:
                radial-gradient(circle at 20% 30%, rgba(96, 165, 250, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(168, 85, 247, 0.05) 0%, transparent 50%);
            pointer-events: none;
        }

        .skills-container {
            max-width: 1200px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

        /* === SKILL CARDS === */
        .skills-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 2.5rem;
            margin-bottom: 4rem;
        }

        .skill-card {
            background: rgba(255, 255, 255, 0.02);
            backdrop-filter: blur(15px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 24px;
            padding: 2.5rem;
            position: relative;
            overflow: hidden;
            transition: all 0.4s ease;
            group: hover;
        }

        .skill-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, transparent, rgba(96, 165, 250, 0.6), rgba(168, 85, 247, 0.6), transparent);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .skill-card:hover::before {
            opacity: 1;
        }

        .skill-card:hover {
            transform: translateY(-8px);
            border-color: rgba(96, 165, 250, 0.2);
            box-shadow: 0 30px 60px rgba(0, 0, 0, 0.3);
            background: rgba(255, 255, 255, 0.04);
        }

        .skill-header {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            margin-bottom: 2rem;
        }

        .skill-icon {
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, #60a5fa, #a855f7);
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            flex-shrink: 0;
            position: relative;
        }

        .skill-icon::after {
            content: '';
            position: absolute;
            inset: 2px;
            background: linear-gradient(135deg, rgba(10, 10, 10, 0.8), rgba(26, 26, 26, 0.8));
            border-radius: 18px;
            z-index: -1;
        }

        .skill-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: #ffffff;
            line-height: 1.2;
        }

        .skill-content {
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            font-size: 1rem;
        }

        .skill-content h4 {
            color: #60a5fa;
            font-weight: 600;
            margin: 1.5rem 0 1rem 0;
            font-size: 1.1rem;
        }

        .skill-content p {
            margin-bottom: 1.2rem;
        }

        .skill-list {
            list-style: none;
            padding: 0;
            margin: 1rem 0;
        }

        .skill-list li {
            position: relative;
            padding-left: 1.5rem;
            margin-bottom: 0.8rem;
            color: rgba(255, 255, 255, 0.9);
        }

        .skill-list li::before {
            content: '\25B6';
            position: absolute;
            left: 0;
            color: #60a5fa;
            font-weight: bold;
        }

   /* === METHODOLOGY SECTION === */
        .methodology-section {
            background: linear-gradient(135deg, rgba(96, 165, 250, 0.08), rgba(168, 85, 247, 0.08));
            border: 1px solid rgba(96, 165, 250, 0.15);
            border-radius: 24px;
            padding: 3rem;
            margin: 4rem 0;
            position: relative;
        }

        .methodology-title {
            font-size: 2rem;
            font-weight: 700;
            text-align: center;
            margin-bottom: 2rem;
            background: linear-gradient(135deg, #60a5fa, #a855f7);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .methodology-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }

        .methodology-item {
            background: rgba(0, 0, 0, 0.2);
            border: 1px solid rgba(96, 165, 250, 0.1);
            border-radius: 16px;
            padding: 2rem;
            text-align: center;
            transition: all 0.3s ease;
        }

        .methodology-item:hover {
            transform: translateY(-5px);
            border-color: rgba(96, 165, 250, 0.3);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
        }

        .methodology-number {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, #60a5fa, #a855f7);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            margin: 0 auto 1rem auto;
            color: #ffffff;
        }

        .methodology-item h4 {
            color: #ffffff;
            font-weight: 600;
            margin-bottom: 1rem;
            font-size: 1.1rem;
        }

        .methodology-item p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            line-height: 1.5;
        }

        /* === IMPACT SECTION === */
        .impact-section {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 24px;
            padding: 3rem;
            margin: 4rem 0;
            text-align: center;
        }

        .impact-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            background: linear-gradient(135deg, #ffffff 0%, #60a5fa 50%, #a855f7 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .impact-subtitle {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 2rem;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }

        .impact-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }

        .impact-item {
            padding: 1.5rem;
        }

        .impact-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #60a5fa, #a855f7);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem auto;
            font-size: 1.5rem;
        }

        .impact-label {
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 0.5rem;
        }

        .impact-description {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            line-height: 1.4;
        }

         /* === DEMO SECTION === */
        .demo-section {
            padding: 4rem 2rem;
            background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
            position: relative;
        }

        .demo-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background:
                radial-gradient(circle at 25% 25%, rgba(96, 165, 250, 0.03) 0%, transparent 50%),
                radial-gradient(circle at 75% 75%, rgba(168, 85, 247, 0.03) 0%, transparent 50%);
            pointer-events: none;
        }

        .demo-container {
            max-width: 1200px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

        /* === HERO VIDEO === */
        .hero-video-section {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 24px;
            padding: 3rem;
            margin-bottom: 4rem;
            text-align: center;
        }

        .hero-video-title {
            font-size: 2.5rem;
            font-weight: 700;
            background: linear-gradient(135deg, #ffffff 0%, #60a5fa 50%, #a855f7 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 1rem;
        }

        .hero-video-subtitle {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 3rem;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }

        .main-video-container {
            background: #000;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
            position: relative;
        }

        .main-video {
            width: 100%;
            height: auto;
            display: block;
        }

        /* === FEATURES GRID === */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            gap: 2.5rem;
            margin: 4rem 0;
        }

        .feature-card {
            background: rgba(255, 255, 255, 0.02);
            backdrop-filter: blur(15px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 20px;
            overflow: hidden;
            transition: all 0.4s ease;
            position: relative;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, rgba(96, 165, 250, 0.6), transparent);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-card:hover {
            transform: translateY(-8px);
            border-color: rgba(96, 165, 250, 0.2);
            box-shadow: 0 30px 60px rgba(0, 0, 0, 0.3);
            background: rgba(255, 255, 255, 0.04);
        }

        .feature-video-container {
            position: relative;
            background: #000;
        }

        .feature-video {
            width: 100%;
            height: 250px;
            object-fit: cover;
        }

        .feature-duration {
            position: absolute;
            bottom: 8px;
            right: 8px;
            background: rgba(0, 0, 0, 0.8);
            color: #ffffff;
            padding: 4px 8px;
            border-radius: 4px;
            font-size: 0.8rem;
            font-family: 'JetBrains Mono', monospace;
        }

        .feature-content {
            padding: 2rem;
        }

        .feature-title {
            font-size: 1.3rem;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 1rem;
        }

        .feature-description {
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.6;
            margin-bottom: 1.5rem;
        }

        .feature-highlights {
            list-style: none;
            padding: 0;
        }

        .feature-highlights li {
            position: relative;
            padding-left: 1.5rem;
            margin-bottom: 0.8rem;
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.9rem;
        }

        .feature-highlights li::before {
            content: '\25B6';
            position: absolute;
            left: 0;
            color: #60a5fa;
            font-size: 0.7rem;
            font-weight: bold;
        }

        /* === IMPACT METRICS === */
        .impact-metrics {
            background: linear-gradient(135deg, rgba(96, 165, 250, 0.08), rgba(168, 85, 247, 0.08));
            border: 1px solid rgba(96, 165, 250, 0.15);
            border-radius: 24px;
            padding: 3rem;
            margin: 4rem 0;
            text-align: center;
        }

        .metrics-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, #60a5fa, #a855f7);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .metrics-subtitle {
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 3rem;
            font-size: 1.1rem;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
        }

        .metric-card {
            background: rgba(0, 0, 0, 0.2);
            border: 1px solid rgba(96, 165, 250, 0.1);
            border-radius: 16px;
            padding: 2rem;
            transition: all 0.3s ease;
        }

        .metric-card:hover {
            transform: translateY(-5px);
            border-color: rgba(96, 165, 250, 0.3);
        }

        .metric-value {
            font-size: 3rem;
            font-weight: 700;
            background: linear-gradient(135deg, #60a5fa, #a855f7);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: block;
            line-height: 1;
            margin-bottom: 0.5rem;
        }

        .metric-label {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .metric-description {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.8rem;
            margin-top: 0.5rem;
            line-height: 1.3;
        }

        /* === BEFORE AFTER === */
        .before-after {
            margin: 4rem 0;
        }

        .before-after-title {
            font-size: 2rem;
            font-weight: 700;
            text-align: center;
            margin-bottom: 3rem;
            background: linear-gradient(135deg, #ffffff 0%, #60a5fa 50%, #a855f7 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: start;
        }

        .comparison-item {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 2rem;
            text-align: center;
        }

        .comparison-label {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
            padding: 0.5rem 1rem;
            border-radius: 25px;
        }

        .before-label {
            background: rgba(239, 68, 68, 0.1);
            color: #ef4444;
            border: 1px solid rgba(239, 68, 68, 0.3);
        }

        .after-label {
            background: rgba(34, 197, 94, 0.1);
            color: #22c55e;
            border: 1px solid rgba(34, 197, 94, 0.3);
        }

        .comparison-image {
            width: 100%;
            border-radius: 12px;
            margin-bottom: 1rem;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
        }

        .comparison-description {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            line-height: 1.5;
        }

        /* === CONCLUSION === */
        .conclusion-section {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 24px;
            padding: 3rem;
            margin: 4rem 0;
            text-align: center;
        }

        .conclusion-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            color: #ffffff;
        }

        .conclusion-text {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            max-width: 800px;
            margin: 0 auto 2rem auto;
        }

        .conclusion-highlight {
            background: linear-gradient(135deg, rgba(96, 165, 250, 0.1), rgba(168, 85, 247, 0.1));
            border: 1px solid rgba(96, 165, 250, 0.2);
            border-radius: 12px;
            padding: 2rem;
            margin: 2rem 0;
            font-style: italic;
            color: rgba(255, 255, 255, 0.9);
        }

        /* === SKILLS SECTION === */
        .skills-section {
            padding: 4rem 2rem;
            background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
            position: relative;
        }

        .skills-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background:
                radial-gradient(circle at 20% 30%, rgba(96, 165, 250, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(168, 85, 247, 0.05) 0%, transparent 50%);
            pointer-events: none;
        }

        .skills-container {
            max-width: 1200px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

        /* === SKILL CARDS === */
        .skills-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 2.5rem;
            margin-bottom: 4rem;
        }

        .skill-card {
            background: rgba(255, 255, 255, 0.02);
            backdrop-filter: blur(15px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 24px;
            padding: 2.5rem;
            position: relative;
            overflow: hidden;
            transition: all 0.4s ease;
            group: hover;
        }

        .skill-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, transparent, rgba(96, 165, 250, 0.6), rgba(168, 85, 247, 0.6), transparent);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .skill-card:hover::before {
            opacity: 1;
        }

        .skill-card:hover {
            transform: translateY(-8px);
            border-color: rgba(96, 165, 250, 0.2);
            box-shadow: 0 30px 60px rgba(0, 0, 0, 0.3);
            background: rgba(255, 255, 255, 0.04);
        }

        .skill-header {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            margin-bottom: 2rem;
        }

        .skill-icon {
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, #60a5fa, #a855f7);
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            flex-shrink: 0;
            position: relative;
        }

        .skill-icon::after {
            content: '';
            position: absolute;
            inset: 2px;
            background: linear-gradient(135deg, rgba(10, 10, 10, 0.8), rgba(26, 26, 26, 0.8));
            border-radius: 18px;
            z-index: -1;
        }

        .skill-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: #ffffff;
            line-height: 1.2;
        }

        .skill-content {
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            font-size: 1rem;
        }

        .skill-content h4 {
            color: #60a5fa;
            font-weight: 600;
            margin: 1.5rem 0 1rem 0;
            font-size: 1.1rem;
        }

        .skill-content p {
            margin-bottom: 1.2rem;
        }

        .skill-list {
            list-style: none;
            padding: 0;
            margin: 1rem 0;
        }

        .skill-list li {
            position: relative;
            padding-left: 1.5rem;
            margin-bottom: 0.8rem;
            color: rgba(255, 255, 255, 0.9);
        }

        .skill-list li::before {
            content: '\25B6';
            position: absolute;
            left: 0;
            color: #60a5fa;
            font-weight: bold;
            font-size: 0.8rem;
        }

        /* === METHODOLOGY SECTION === */
        .methodology-section {
            background: linear-gradient(135deg, rgba(96, 165, 250, 0.08), rgba(168, 85, 247, 0.08));
            border: 1px solid rgba(96, 165, 250, 0.15);
            border-radius: 24px;
            padding: 3rem;
            margin: 4rem 0;
            position: relative;
        }

        .methodology-title {
            font-size: 2rem;
            font-weight: 700;
            text-align: center;
            margin-bottom: 2rem;
            background: linear-gradient(135deg, #60a5fa, #a855f7);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .methodology-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }

        .methodology-item {
            background: rgba(0, 0, 0, 0.2);
            border: 1px solid rgba(96, 165, 250, 0.1);
            border-radius: 16px;
            padding: 2rem;
            text-align: center;
            transition: all 0.3s ease;
        }

        .methodology-item:hover {
            transform: translateY(-5px);
            border-color: rgba(96, 165, 250, 0.3);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
        }

        .methodology-number {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, #60a5fa, #a855f7);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            margin: 0 auto 1rem auto;
            color: #ffffff;
        }

        .methodology-item h4 {
            color: #ffffff;
            font-weight: 600;
            margin-bottom: 1rem;
            font-size: 1.1rem;
        }

        .methodology-item p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            line-height: 1.5;
        }

        /* === IMPACT SECTION === */
        .impact-section {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 24px;
            padding: 3rem;
            margin: 4rem 0;
            text-align: center;
        }

        .impact-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            background: linear-gradient(135deg, #ffffff 0%, #60a5fa 50%, #a855f7 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .impact-subtitle {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 2rem;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }

        .impact-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }

        .impact-item {
            padding: 1.5rem;
        }

        .impact-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #60a5fa, #a855f7);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem auto;
            font-size: 1.5rem;
        }

        .impact-label {
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 0.5rem;
        }

        .impact-description {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            line-height: 1.4;
        }


        /* === NAVIGATION PILLS === */
.nav-pills-container {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    align-items: center;
}

.nav-pill {
    display: inline-flex;
    align-items: center;
    background: rgba(96, 165, 250, 0.1);
    border: 1px solid rgba(96, 165, 250, 0.2);
    border-radius: 50px;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    color: #60a5fa;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    /* Par d�faut : invisibles */
    opacity: 0.4;
    visibility: visible;
    pointer-events: auto;
}

/* Seule la page courante est visible par d�faut */
.nav-pill.current {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

/* Au hover du container : toutes les pilules deviennent visibles mais p�les */
.nav-pills-container:hover .nav-pill {
    opacity: 0.4;
    visibility: visible;
    pointer-events: auto;
}

/* Au hover individuel : la pilule devient pleine */
.nav-pills-container:hover .nav-pill:hover {
    opacity: 0.8;
    transform: translateY(-2px);
    background: rgba(96, 165, 250, 0.15);
    border-color: rgba(96, 165, 250, 0.4);
}

/* La page courante reste toujours pleine opacity */
.nav-pills-container:hover .nav-pill.current {
    opacity: 1;
}


        /* === RESPONSIVE === */
        @media (max-width: 768px) {
            .skills-section {
                padding: 2rem 1rem;
            }

            .skills-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .skill-card {
                padding: 2rem;
            }

            .methodology-section {
                padding: 2rem;
            }

            .methodology-grid {
                grid-template-columns: 1fr;
            }

            .impact-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 480px) {
            .impact-grid {
                grid-template-columns: 1fr;
            }
        }

/* === COMMON FOOTER STYLES === */
.footer {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 16px 16px 0 0;
    margin: 2rem auto 0;
    max-width: 1200px;
    padding: 2rem 3rem;
    text-align: center;
    color: #ffffff;
    font-size: 1rem;
    line-height: 1.6;
}

.footer-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
}

.footer-right {
        font-weight: 500;
        text-align: right !important;
    }
.footer-left {
        font-weight: 500;
        text-align: left;
    }

/* === COMMON HOVER DETAIL AND POPUP STYLES === */
.hover-detail {
    cursor: pointer !important;
    transition: all 0.3s ease !important;
    border-radius: 8px !important;
    padding: 0.5rem !important;
    position: relative !important;
}

.hover-detail::before {
    content: "\1F50D" !important;
    position: absolute !important;
    top: 5px !important;
    right: 5px !important;
    font-size: 1.2rem !important;
    opacity: 0.7 !important;
    transition: opacity 0.3s ease !important;
    filter: drop-shadow(0 0 2px rgba(96, 165, 250, 0.8)) !important;
}

.hover-detail:hover::before {
    opacity: 0.8 !important;
}

.hover-detail:hover {
    transform: translateY(-3px) !important;
}

.hover-popup.show {
    display: block !important;
}

.popup-overlay {
    display: none !important;
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: 100% !important;
    background: rgba(0, 0, 0, 0.8) !important;
    z-index: 9998 !important;
}

.popup-overlay.show {
    display: block !important;
}

.hover-popup {
    display: none !important;
    position: fixed !important;
    top: 50% !important;
    left: 50% !important;
    transform: translate(-50%, -50%) !important;
    width: 600px !important;
    max-height: 80vh !important;
    background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%) !important;
    border: 2px solid rgba(96, 165, 250, 0.5) !important;
    border-radius: 16px !important;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.9) !important;
    z-index: 9999 !important;
    backdrop-filter: blur(10px) !important;
    overflow: hidden !important;
}

.popup-content {
    padding: 2rem !important;
    height: calc(80vh - 4rem) !important;
    overflow-y: auto !important;
    color: #ffffff !important;
    font-size: 0.9rem !important;
    line-height: 1.5 !important;
    padding-top: 3rem !important;
    box-sizing: border-box !important;
}

.popup-close {
    position: absolute !important;
    top: 15px !important;
    right: 20px !important;
    background: none !important;
    border: none !important;
    color: #ffffff !important;
    font-size: 24px !important;
    cursor: pointer !important;
    z-index: 10000 !important;
    width: 30px !important;
    height: 30px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    border-radius: 50% !important;
    transition: background-color 0.3s ease !important;
}

.popup-close:hover {
    background-color: rgba(255, 255, 255, 0.1) !important;
}

.hover-popup h3 {
    color: #60a5fa !important;
    font-size: 1.1rem !important;
    margin: 1.5rem 0 0.5rem 0 !important;
    font-weight: 600 !important;
}

.hover-popup .section-count {
    background: linear-gradient(135deg, #60a5fa, #a855f7) !important;
    color: white !important;
    padding: 0.2rem 0.6rem !important;
    border-radius: 12px !important;
    font-size: 0.8rem !important;
    font-weight: 600 !important;
    margin-left: 0.5rem !important;
}

/* === NAV PILL HOME STYLE === */
.nav-pill.home-pill {
    background: rgba(249, 115, 22, 0.15) !important;
    border: 1px solid rgba(249, 115, 22, 0.3) !important;
    color: #ea580c !important;
    font-weight: 600 !important;
}

.nav-pills-container:hover .nav-pill.home-pill:hover {
    background: rgba(249, 115, 22, 0.25) !important;
    border-color: rgba(249, 115, 22, 0.5) !important;
}/* === RESPONSIVE === */
        @media (max-width: 768px) {
            .skills-section {
                padding: 2rem 1rem;
            }

            .skills-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .skill-card {
                padding: 2rem;
            }

            .methodology-section {
                padding: 2rem;
            }

            .methodology-grid {
                grid-template-columns: 1fr;
            }

            .impact-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 480px) {
            .impact-grid {
                grid-template-columns: 1fr;
            }
        }

/* === COMMON FOOTER STYLES === */
.footer {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 16px 16px 0 0;
    margin: 2rem auto 0;
    max-width: 1200px;
    padding: 2rem 3rem;
    text-align: center;
    color: #ffffff;
    font-size: 1rem;
    line-height: 1.6;
}

.footer-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
}

.footer-left,
.footer-right {
    font-weight: 500;
}

/* === COMMON HOVER DETAIL AND POPUP STYLES === */
.hover-detail {
    cursor: pointer !important;
    transition: all 0.3s ease !important;
    border-radius: 8px !important;
    padding: 0.5rem !important;
    position: relative !important;
}

.hover-detail::before {
    content: "\1F50D" !important;
    position: absolute !important;
    top: 5px !important;
    right: 5px !important;
    font-size: 1.2rem !important;
    opacity: 0.7 !important;
    transition: opacity 0.3s ease !important;
    filter: drop-shadow(0 0 2px rgba(96, 165, 250, 0.8)) !important;
}

.hover-detail:hover::before {
    opacity: 0.8 !important;
}

.hover-detail:hover {
    transform: translateY(-3px) !important;
}

.hover-popup.show {
    display: block !important;
}

.popup-overlay {
    display: none !important;
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: 100% !important;
    background: rgba(0, 0, 0, 0.8) !important;
    z-index: 9998 !important;
}

.popup-overlay.show {
    display: block !important;
}

.hover-popup {
    display: none !important;
    position: fixed !important;
    top: 50% !important;
    left: 50% !important;
    transform: translate(-50%, -50%) !important;
    width: 600px !important;
    max-height: 80vh !important;
    background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%) !important;
    border: 2px solid rgba(96, 165, 250, 0.5) !important;
    border-radius: 16px !important;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.9) !important;
    z-index: 9999 !important;
    backdrop-filter: blur(10px) !important;
    overflow: hidden !important;
}

.popup-content {
    padding: 2rem !important;
    height: calc(80vh - 4rem) !important;
    overflow-y: auto !important;
    color: #ffffff !important;
    font-size: 0.9rem !important;
    line-height: 1.5 !important;
    padding-top: 3rem !important;
    box-sizing: border-box !important;
}

.popup-close {
    position: absolute !important;
    top: 15px !important;
    right: 20px !important;
    background: none !important;
    border: none !important;
    color: #ffffff !important;
    font-size: 24px !important;
    cursor: pointer !important;
    z-index: 10000 !important;
    width: 30px !important;
    height: 30px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    border-radius: 50% !important;
    transition: background-color 0.3s ease !important;
}

.popup-close:hover {
    background-color: rgba(255, 255, 255, 0.1) !important;
}

.hover-popup h3 {
    color: #60a5fa !important;
    font-size: 1.1rem !important;
    margin: 1.5rem 0 0.5rem 0 !important;
    font-weight: 600 !important;
}

.hover-popup .section-count {
    background: linear-gradient(135deg, #60a5fa, #a855f7) !important;
    color: white !important;
    padding: 0.2rem 0.6rem !important;
    border-radius: 12px !important;
    font-size: 0.8rem !important;
    font-weight: 600 !important;
    margin-left: 0.5rem !important;
}

/* === NAV PILL HOME STYLE === */
.nav-pill.home-pill {
    background: rgba(249, 115, 22, 0.15) !important;
    border: 1px solid rgba(249, 115, 22, 0.3) !important;
    color: #ea580c !important;
    font-weight: 600 !important;
}

.nav-pills-container:hover .nav-pill.home-pill:hover {
    background: rgba(249, 115, 22, 0.25) !important;
    border-color: rgba(249, 115, 22, 0.5) !important;
}