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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #ffffff;
            color: #1B3B5F;
            line-height: 1.7;
            overflow-x: hidden;
        }

        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: 120px 60px 80px;
            position: relative;
            overflow: hidden;
            
            /* Image de background avec overlay */
            background-image: 
                linear-gradient(135deg, rgba(248, 249, 250, 0.95) 0%, rgba(255, 255, 255, 0.90) 100%),
                url('../IMG/btp-hero.jpg');
            background-size: cover;
            background-position: center center;
            background-repeat: no-repeat;
            background-attachment: fixed;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 50%;
            height: 100%;
            background: radial-gradient(circle at top right, rgba(184, 120, 84, 0.05), transparent 70%);
            pointer-events: none;
        }

        .hero-container {
            max-width: 1400px;
            margin: 0 auto;
            width: 100%;
            position: relative;
            z-index: 1;
        }

        .hero-content {
            max-width: 900px;
            opacity: 0;
            transform: translateY(30px);
            animation: fadeInUp 1s ease forwards;
        }

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

        .hero-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: #B87854;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 30px;
        }

        .hero h1 {
            font-size: 64px;
            font-weight: 700;
            line-height: 1.15;
            margin-bottom: 30px;
            color: #1B3B5F;
        }

        .hero-highlight {
            color: #B87854;
            position: relative;
            display: inline-block;
        }

        .hero-highlight::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 8px;
            background: rgba(184, 120, 84, 0.15);
            z-index: -1;
        }

        .hero p {
            font-size: 20px;
            line-height: 1.7;
            color: #4A5568;
            margin-bottom: 50px;
            max-width: 750px;
        }

        .hero-cta {
            display: inline-block;
            background: #1B3B5F;
            color: white;
            padding: 18px 40px;
            text-decoration: none;
            font-weight: 600;
            font-size: 16px;
            transition: all 0.3s;
            margin-right: 15px;
            border-radius: 8px;
        }

        .hero-cta:hover {
            background: #2d5280;
            transform: translateX(5px);
        }

        .section {
            padding: 120px 60px;
            max-width: 1400px;
            margin: 0 auto;
            position: relative;
        }

        .section-label {
            font-size: 13px;
            font-weight: 600;
            color: #B87854;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 20px;
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.6s ease;
        }

        .section-label.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .section-title {
            font-size: 48px;
            font-weight: 700;
            color: #1B3B5F;
            margin-bottom: 25px;
            line-height: 1.2;
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.6s ease 0.1s;
        }

        .section-title.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .section-intro {
            font-size: 19px;
            color: #4A5568;
            max-width: 800px;
            margin-bottom: 70px;
            line-height: 1.7;
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.6s ease 0.2s;
        }

        .section-intro.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .grid-btp {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 40px;
        }

        .card-btp {
            background: white;
            padding: 45px;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            opacity: 0;
            transform: translateY(30px);
            box-shadow: 0 10px 30px rgba(27, 59, 95, 0.08);
            border-radius: 12px;
            border-left: 4px solid #B87854;
        }

        .card-btp.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .card-btp:nth-child(1) { transition-delay: 0.1s; }
        .card-btp:nth-child(2) { transition-delay: 0.2s; }
        .card-btp:nth-child(3) { transition-delay: 0.3s; }

        .card-btp:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 50px rgba(27, 59, 95, 0.12);
        }

        .card-header-btp {
            margin-bottom: 30px;
        }

        .card-icon-btp {
            font-size: 40px;
            margin-bottom: 20px;
        }

        .card-title-btp {
            font-size: 24px;
            font-weight: 700;
            color: #1B3B5F;
            margin-bottom: 10px;
        }

        .card-content-btp p {
            margin-bottom: 20px;
            color: #4A5568;
            line-height: 1.7;
        }

        .card-content-btp p strong {
            color: #1B3B5F;
        }

        /* Resources Section */
        .resources-section {
            background: #f8f9fa;
            padding: 120px 60px;
        }
        
        .resources-container {
            max-width: 1400px;
            margin: 0 auto;
        }
        
        .resources-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2.5rem;
            margin-bottom: 4rem;
        }
        
        .resource-card {
            background: white;
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 4px 20px rgba(27, 59, 95, 0.08);
            transition: all 0.3s ease;
            border-left: 4px solid #1B3B5F;
        }
        
        .resource-card.copper-accent {
            border-left-color: #B87854;
        }
        
        .resource-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 30px rgba(27, 59, 95, 0.15);
        }
        
        .resource-card h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #1B3B5F;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        .resource-card h3 i {
            color: #B87854;
        }
        
        .resource-card p {
            color: #4A5568;
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }
        
        .resource-btn {
            display: inline-block;
            padding: 0.75rem 1.5rem;
            background: #1B3B5F;
            color: white;
            text-decoration: none;
            border-radius: 8px;
            font-weight: 600;
            transition: all 0.3s ease;
            font-size: 0.95rem;
        }
        
        .resource-btn:hover {
            background: #2d5280;
            transform: translateY(-2px);
        }
        
        .resource-btn.copper {
            background: #B87854;
        }
        
        .resource-btn.copper:hover {
            background: #a36848;
        }

        .tools-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 3rem;
            margin-top: 3rem;
        }

        .tool-card {
            background: white;
            padding: 3rem 2.5rem;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(27, 59, 95, 0.08);
            position: relative;
            transition: all 0.3s ease;
            opacity: 0;
            transform: translateY(30px);
        }

        .tool-card.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .tool-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(135deg, #1B3B5F 0%, #2d5280 100%);
            border-radius: 12px 12px 0 0;
        }

        .tool-card:nth-child(2)::before {
            background: linear-gradient(135deg, #B87854 0%, #a36848 100%);
        }

        .tool-card:nth-child(3)::before {
            background: linear-gradient(135deg, #1B3B5F 0%, #B87854 100%);
        }

        .tool-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 40px rgba(27, 59, 95, 0.15);
        }

        .tool-number {
            font-size: 14px;
            font-weight: 700;
            color: #B87854;
            margin-bottom: 1.5rem;
            letter-spacing: 1px;
        }

        .tool-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: #1B3B5F;
            margin-bottom: 1rem;
        }

        .tool-description {
            color: #4A5568;
            line-height: 1.7;
            margin-bottom: 2rem;
        }

        .tool-link {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            color: #1B3B5F;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .tool-link:hover {
            color: #B87854;
            transform: translateX(5px);
        }

        .accent-section {
            background: linear-gradient(135deg, #1B3B5F 0%, #2d5280 100%);
            padding: 100px 60px;
            text-align: center;
            color: white;
        }

        .accent-container {
            max-width: 800px;
            margin: 0 auto;
        }

        .accent-container h2 {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
        }

        .accent-container p {
            font-size: 1.25rem;
            margin-bottom: 3rem;
            opacity: 0.95;
        }

        .accent-cta {
            display: inline-block;
            background: white;
            color: #1B3B5F;
            padding: 18px 40px;
            text-decoration: none;
            font-weight: 600;
            font-size: 1rem;
            border-radius: 8px;
            transition: all 0.3s;
        }

        .accent-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        }

        @media (max-width: 768px) {
            .hero {
                padding: 80px 30px 60px;
                background-attachment: scroll;
                background-position: center center;
            }
            
            .hero h1 {
                font-size: 40px;
                text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
            }
            
            .section {
                padding: 60px 30px;
            }
            
            .section-title {
                font-size: 32px;
            }
            
            .grid-btp,
            .tools-grid,
            .resources-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            
            .resources-section {
                padding: 60px 30px;
            }
        }