a {
            text-decoration: none;
            color: inherit;
        }

        /* --- COMPOSANTS DE STRUCTURE --- */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background-color: var(--main-purple);
            color: var(--white);
        }

        .btn-primary:hover {
            background-color: var(--dark-purple-gradient);
            transform: translateY(-2px);
            box-shadow: 0 10px 25px rgba(156, 4, 218, 0.25);
        }

        .btn-secondary {
            background-color: var(--white);
            color: var(--main-purple);
            border: 2px solid var(--main-purple);
        }

        .btn-secondary:hover {
            background-color: var(--light-purple-bg);
            color: var(--dark-purple-gradient);
            transform: translateY(-2px);
        }

        .section-tag {
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--main-purple);
            font-weight: 700;
            margin-bottom: 12px;
            display: inline-block;
            background-color: var(--light-purple-bg);
            padding: 4px 12px;
            border-radius: 50px;
        }

        .section-title {
            font-size: 2.6rem;
            margin-bottom: 16px;
        }

        .section-desc {
            color: #555;
            max-width: 600px;
            margin-bottom: 48px;
            font-size: 1.1rem;
        }

        /* Motifs de lignes fins croisés discrets style africain moderne */
        .african-line-pattern {
            background-image: linear-gradient(45deg, var(--light-purple-bg) 25%, transparent 25%), 
                              linear-gradient(-45deg, var(--light-purple-bg) 25%, transparent 25%);
            background-size: 60px 60px;
            opacity: 0.15;
            position: absolute;
            inset: 0;
            pointer-events: none;
            z-index: 1;
        }

        /* --- 1. HEADER & INTERACTION --- */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            background-color: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--gray-border);
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }

        .logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--main-purple);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .logo span {
            color: var(--accent-yellow);
            -webkit-text-stroke: 1px var(--main-purple);
        }

        .nav-links {
            display: flex;
            gap: 32px;
            list-style: none;
        }

        .nav-links a {
            font-weight: 600;
            color: #444;
            transition: var(--transition);
        }

        .nav-links a:hover {
            color: var(--main-purple);
        }

        /* --- 2. HERO SECTION --- */
        #hero {
            padding: 160px 0 100px 0;
            position: relative;
            background: linear-gradient(135deg, var(--white) 60%, var(--light-purple-bg) 100%);
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 64px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .hero-content h1 {
            font-size: 3.6rem;
            margin-bottom: 24px;
            color: var(--text-dark);
        }

        .hero-content h1 span {
            color: var(--main-purple);
            background: linear-gradient(to right, var(--main-purple), var(--dark-purple-gradient));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-content p {
            font-size: 1.2rem;
            color: #444;
            margin-bottom: 40px;
        }

        .hero-btns {
            display: flex;
            gap: 16px;
        }

        .hero-image-wrapper {
            position: relative;
        }

        .hero-img {
            width: 100%;
            height: auto;
            border-radius: var(--radius-md);
            border: 4px solid var(--white);
            box-shadow: 0 30px 60px rgba(83, 2, 116, 0.15);
        }

        /* --- 3. COMMENT CA MARCHE --- */
        #how-it-works {
            padding: 100px 0;
            background-color: var(--white);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
        }

        .step-card {
            padding: 32px;
            background-color: var(--bg-light);
            border-radius: var(--radius-md);
            border: 1px solid var(--gray-border);
            position: relative;
        }

        .step-icon {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-sm);
            background-color: var(--light-purple-bg);
            color: var(--dark-purple-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
        }

        /* --- 4. SECTION VIDÉO AJOUTÉE (STANDARD INTERNATIONAL) --- */
        #demo-video {
            padding: 100px 0;
            background: linear-gradient(180deg, var(--white) 0%, var(--bg-light) 100%);
            position: relative;
        }

        .video-container {
            max-width: 900px;
            margin: 0 auto;
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: 0 40px 80px rgba(83, 2, 116, 0.18);
            border: 6px solid var(--white);
        }

        .video-container video {
            width: 100%;
            display: block;
        }

        /* Overlay esthétique avant lecture */
        .video-overlay {
            position: absolute;
            inset: 0;
            background: rgba(83, 2, 116, 0.4);
            backdrop-filter: blur(2px);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
            cursor: pointer;
            z-index: 5;
        }

        .play-btn {
            width: 90px;
            height: 90px;
            background-color: var(--accent-yellow);
            color: var(--dark-purple-gradient);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 0 0 rgba(255, 235, 59, 0.5);
            animation: pulse 2s infinite;
            transition: var(--transition);
        }

        .play-btn i {
            width: 36px;
            height: 36px;
            fill: var(--dark-purple-gradient);
            margin-left: 6px;
        }

        .video-overlay:hover .play-btn {
            transform: scale(1.1);
            background-color: var(--white);
        }

        @keyframes pulse {
            0% { box-shadow: 0 0 0 0 rgba(255, 235, 59, 0.7); }
            70% { box-shadow: 0 0 0 20px rgba(255, 235, 59, 0); }
            100% { box-shadow: 0 0 0 0 rgba(255, 235, 59, 0); }
        }

        /* --- 5. CONTACT SECTION --- */
        #contact {
            padding: 100px 0;
            background-color: var(--white);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 64px;
            align-items: center;
        }

        .contact-form {
            background-color: var(--bg-light);
            padding: 48px;
            border-radius: var(--radius-md);
            border: 1px solid var(--gray-border);
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            font-size: 0.85rem;
            font-weight: 700;
            margin-bottom: 8px;
            text-transform: uppercase;
        }

        .form-group input, .form-group textarea {
            width: 100%;
            padding: 14px;
            border: 1px solid var(--gray-border);
            border-radius: var(--radius-sm);
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }

        .form-group input:focus, .form-group textarea:focus {
            border-color: var(--main-purple);
            box-shadow: 0 0 0 3px rgba(156, 4, 218, 0.15);
        }

        /* --- 6. FOOTER --- */
        footer {
            background-color: var(--dark-purple-gradient);
            color: var(--light-purple-bg);
            padding: 40px 0;
            text-align: center;
            font-size: 0.95rem;
        }

        /* RESPONSIVE */
        @media (max-width: 992px) {
            .hero-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
            .steps-grid { grid-template-columns: 1fr; }
            .hero-content h1 { font-size: 2.8rem; }
        }