/* --- RESET & BASE --- */
        * { margin: 0; padding: 0; box-sizing: border-box; }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Montserrat', sans-serif;
            background-color: #000000;
            color: #ffffff;
            overflow: hidden;
            height: 100vh;
            width: 100vw;
        }

        /* --- BOOTSTRAP ICONS STYLING --- */
        .bi {
            margin-right: 0.5rem;
            vertical-align: middle;
        }

        .info-block h4 .bi,
        .skill-category h3 .bi {
            color: #00f3ff;
            font-size: 1.1em;
        }

        .cert-icon .bi {
            font-size: 1.3rem;
            color: #fff;
        }

        .contact-item .icon .bi {
            font-size: 1rem;
        }

        .contact-info-home .bi {
            margin-right: 0.4rem;
            color: #00f3ff;
        }

        .nav-btn .bi {
            margin-right: 0.3rem;
            font-size: 0.9em;
        }

        .section-title .bi,
        #work-section h2 .bi,
        #contact-section h2 .bi {
            margin-right: 0.8rem;
            color: #00f3ff;
        }

        .nav-btn-suivant .bi {
            margin-left: 0.5rem;
            margin-right: 0;
        }

        .exp-card .date .bi {
            color: #00f3ff;
            margin-right: 0.3rem;
        }

        .exp-card h3 .bi {
            color: #00f3ff;
            margin-right: 0.4rem;
            font-size: 0.95em;
        }

        .timeline-item .bi {
            color: #00f3ff;
            margin-right: 0.4rem;
        }

        /* --- UI LAYER --- */
        #ui-layer {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 10;
        }

        /* --- ÉLÉMENT PHOTO FLOTTANTE --- */
        .floating-avatar {
            position: absolute;
            top: 50%;
            left: 75%; 
            width: 280px;
            height: 330px;
            transform: translate(-50%, -50%);
            z-index: 5;
            pointer-events: auto;
            transition: all 1.5s cubic-bezier(0.22, 1, 0.36, 1);
            opacity: 0; 
        }

        .avatar-hexagon {
            width: 100%;
            height: 100%;
            background-image: url('../assets/images/profil.png'); 
            background-size: cover;
            background-position: center;
            clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
            filter: grayscale(20%) contrast(110%);
            box-shadow: 0 0 0 5px rgba(0, 243, 255, 0.1), 
                        0 0 30px rgba(0, 243, 255, 0.2);
            transition: filter 0.3s ease;
            position: relative;
        }

        .avatar-hexagon::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(0,243,255,0.1) 0%, transparent 100%);
            clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
            z-index: 2;
        }

        .floating-avatar:hover .avatar-hexagon {
            filter: grayscale(0%) contrast(120%);
            box-shadow: 0 0 0 5px rgba(0, 243, 255, 0.4), 
                        0 0 50px rgba(0, 243, 255, 0.5);
        }

        .floating-avatar.rotating {
            animation: float 6s ease-in-out infinite;
        }

        @keyframes float {
            0%, 100% { transform: translate(-50%, -50%) translateY(0) rotateY(0deg); }
            50% { transform: translate(-50%, -50%) translateY(-20px) rotateY(5deg); }
        }

        /* --- Navigation --- */
        nav {
            position: absolute;
            top: 0;
            width: 100%;
            padding: 1.5rem 2rem;
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 20;
            pointer-events: auto;
            background: rgba(0,0,0,0.3);
            backdrop-filter: blur(10px);
        }

        .nav-links {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            justify-content: center;
        }

        .nav-btn {
            background: none;
            border: none;
            color: rgba(255, 255, 255, 0.8);
            font-family: 'Montserrat', sans-serif;
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            padding: 0.5rem 0.8rem;
        }

        .nav-btn::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0%;
            height: 2px;
            background: #00f3ff;
            transition: width 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
            box-shadow: 0 0 10px #00f3ff;
        }

        .nav-btn:hover, .nav-btn.active {
            color: #ffffff;
            text-shadow: 0 0 8px rgba(0, 243, 255, 0.6);
        }

        .nav-btn:hover::after, .nav-btn.active::after {
            width: 100%;
        }

        /* --- CONTENT SECTIONS --- */
        .section {
            position: absolute;
            top: 55%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 90%;
            max-width: 1200px;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
            pointer-events: none;
            z-index: 15;
        }

        .section.active {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
        }

        /* --- HOME SECTION --- */
        #home-section {
            text-align: left;
            transform: translate(-80%, -50%);
            max-width: 550px; 
            width: 100%;
        }

        #home-section.active {
            transform: translate(-80%, -50%);
        }

        h1 {
            font-family: 'Orbitron', sans-serif;
            font-size: clamp(2.5rem, 6vw, 5rem);
            line-height: 1;
            margin-bottom: 1.5rem;
            color: #fff;
            text-shadow: 0 0 20px rgba(0, 243, 255, 0.3);
        }

        h1 span {
            display: block;
            background: linear-gradient(90deg, #fff, #00f3ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        p.subtitle {
            font-size: clamp(0.9rem, 2vw, 1.2rem);
            color: rgba(255, 255, 255, 0.8);
            max-width: 500px;
            margin-bottom: 2rem;
            font-weight: 300;
            border-left: 3px solid #00f3ff;
            padding-left: 1rem;
        }

        .cta-btn {
            display: inline-block;
            padding: 0.8rem 2rem;
            border: 1px solid #00f3ff;
            color: #00f3ff;
            text-decoration: none;
            text-transform: uppercase;
            font-size: 0.85rem;
            letter-spacing: 2px;
            transition: all 0.4s ease;
            background: rgba(0, 243, 255, 0.05);
            backdrop-filter: blur(5px);
            position: relative;
            overflow: hidden;
            z-index: 1;
            cursor: pointer;
        }

        .cta-btn::before {
            content: '';
            position: absolute;
            top: 0; left: 0; width: 0%; height: 100%;
            background: #00f3ff;
            z-index: -1;
            transition: width 0.4s ease;
        }

        .cta-btn:hover {
            color: #000;
            box-shadow: 0 0 30px rgba(0, 243, 255, 0.6);
        }

        .cta-btn:hover::before {
            width: 100%;
        }

        /* Contact Info Home */
        .contact-info-home {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 1.5rem;
            font-size: 0.8rem;
        }

        .contact-info-home a {
            color: rgba(255,255,255,0.7);
            text-decoration: none;
            transition: color 0.3s;
        }

        .contact-info-home a:hover {
            color: #00f3ff;
        }

        /* --- ABOUT SECTION --- */
        #about-section {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            text-align: center;
            transform: translate(-50%, -50%);
        }

        .about-text {
            width: 90%;
            max-width: 700px;
            background: rgba(0, 0, 0, 0.7);
            padding: 2rem;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-left: 4px solid #00f3ff;
            text-align: left;
            max-height: 70vh;
            overflow-y: auto;
        }

        .about-text::-webkit-scrollbar {
            width: 6px;
        }

        .about-text::-webkit-scrollbar-track {
            background: rgba(255,255,255,0.1);
        }

        .about-text::-webkit-scrollbar-thumb {
            background: #00f3ff;
            border-radius: 3px;
        }

        .about-text h2 {
            font-family: 'Orbitron', sans-serif;
            font-size: clamp(1.5rem, 4vw, 2.2rem);
            margin-bottom: 1rem;
            color: #fff;
        }

        .about-text p {
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 1rem;
            font-size: clamp(0.85rem, 2vw, 1rem);
        }

        .languages-interests {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 1rem;
            margin-top: 1.5rem;
        }

        .info-block {
            background: rgba(0,243,255,0.05);
            padding: 1rem;
            border-radius: 5px;
            border: 1px solid rgba(0,243,255,0.2);
        }

        .info-block h4 {
            color: #00f3ff;
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 0.5rem;
        }

        .info-block ul {
            list-style: none;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.8);
        }

        .info-block li {
            margin-bottom: 0.3rem;
        }

        /* --- FORMATION SECTION --- */
        #formation-section {
            transform: translate(-50%, -50%);
        }

        .section-title {
            font-family: 'Orbitron', sans-serif;
            font-size: clamp(1.8rem, 4vw, 2.5rem);
            margin-bottom: 2rem;
            text-align: center;
            text-shadow: 0 0 15px rgba(0,243,255,0.5);
        }

        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding: 1rem;
            max-height: 60vh;
            overflow-y: auto;
        }

        .timeline::-webkit-scrollbar {
            width: 6px;
        }

        .timeline::-webkit-scrollbar-track {
            background: rgba(255,255,255,0.1);
        }

        .timeline::-webkit-scrollbar-thumb {
            background: #00f3ff;
            border-radius: 3px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 20px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, #00f3ff, transparent);
        }

        .timeline-item {
            position: relative;
            padding-left: 50px;
            margin-bottom: 2rem;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: 14px;
            top: 5px;
            width: 14px;
            height: 14px;
            background: #00f3ff;
            border-radius: 50%;
            box-shadow: 0 0 15px #00f3ff;
        }

        .timeline-date {
            color: #00f3ff;
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 0.3rem;
        }

        .timeline-title {
            font-family: 'Orbitron', sans-serif;
            font-size: 1.1rem;
            color: #fff;
            margin-bottom: 0.3rem;
        }

        .timeline-subtitle {
            color: rgba(255,255,255,0.6);
            font-size: 0.9rem;
        }

        /* --- EXPERIENCE SECTION --- */
        #experience-section {
            transform: translate(-50%, -50%);
        }

        .experience-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
            max-height: 60vh;
            overflow-y: auto;
            padding: 1rem;
        }

        .experience-grid::-webkit-scrollbar {
            width: 6px;
        }

        .experience-grid::-webkit-scrollbar-track {
            background: rgba(255,255,255,0.1);
        }

        .experience-grid::-webkit-scrollbar-thumb {
            background: #00f3ff;
            border-radius: 3px;
        }

        .exp-card {
            background: rgba(0,0,0,0.7);
            border: 1px solid rgba(0,243,255,0.2);
            padding: 1.5rem;
            transition: all 0.4s ease;
            backdrop-filter: blur(10px);
        }

        .exp-card:hover {
            border-color: #00f3ff;
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(0,243,255,0.2);
        }

        .exp-card .date {
            color: #00f3ff;
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 0.5rem;
        }

        .exp-card h3 {
            font-family: 'Orbitron', sans-serif;
            font-size: 1rem;
            color: #fff;
            margin-bottom: 0.5rem;
        }

        .exp-card p {
            color: rgba(255,255,255,0.6);
            font-size: 0.85rem;
            line-height: 1.5;
        }

        /* --- SKILLS SECTION --- */
        #skills-section {
            transform: translate(-50%, -50%);
        }

        .skills-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            max-height: 65vh;
            overflow-y: auto;
            padding: 1rem;
        }

        .skills-container::-webkit-scrollbar {
            width: 6px;
        }

        .skills-container::-webkit-scrollbar-track {
            background: rgba(255,255,255,0.1);
        }

        .skills-container::-webkit-scrollbar-thumb {
            background: #00f3ff;
            border-radius: 3px;
        }

        .skill-category {
            background: rgba(0,0,0,0.6);
            border: 1px solid rgba(255,255,255,0.1);
            padding: 1.5rem;
            backdrop-filter: blur(10px);
        }

        .skill-category h3 {
            color: #00f3ff;
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid rgba(0,243,255,0.3);
        }

        .skill-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .skill-tag {
            background: rgba(0,243,255,0.1);
            color: #fff;
            padding: 0.4rem 0.8rem;
            font-size: 0.8rem;
            border-radius: 3px;
            border: 1px solid rgba(0,243,255,0.2);
            transition: all 0.3s ease;
        }

        .skill-tag:hover {
            background: rgba(0,243,255,0.3);
            border-color: #00f3ff;
        }

        /* --- CERTIFICATIONS SECTION --- */
        #certifications-section {
            transform: translate(-50%, -50%);
        }

        .certifications-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1rem;
            max-height: 60vh;
            overflow-y: auto;
            padding: 1rem;
        }

        .certifications-grid::-webkit-scrollbar {
            width: 6px;
        }

        .certifications-grid::-webkit-scrollbar-track {
            background: rgba(255,255,255,0.1);
        }

        .certifications-grid::-webkit-scrollbar-thumb {
            background: #00f3ff;
            border-radius: 3px;
        }

        .cert-card {
            background: rgba(0,0,0,0.6);
            border: 1px solid rgba(0,243,255,0.2);
            padding: 1.2rem;
            display: flex;
            align-items: center;
            gap: 1rem;
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
        }

        .cert-card:hover {
            border-color: #00f3ff;
            box-shadow: 0 0 20px rgba(0,243,255,0.2);
        }

        .cert-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, #00f3ff, #0080ff);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        .cert-info h4 {
            color: #fff;
            font-size: 0.95rem;
            margin-bottom: 0.2rem;
        }

        .cert-info span {
            color: rgba(255,255,255,0.5);
            font-size: 0.8rem;
        }

        /* --- PROJECTS SECTION --- */
        #work-section {
            text-align: center;
            width: 100%;
            transform: translate(-50%, -50%);
        }
        
        #work-section h2 {
            font-family: 'Orbitron', sans-serif;
            font-size: clamp(1.8rem, 4vw, 2.5rem);
            margin-bottom: 2rem;
            text-shadow: 0 0 10px #00f3ff;
        }

        .gallery {
            display: flex;
            gap: 1.5rem;
            justify-content: center;
            flex-wrap: wrap;
            perspective: 1000px;
            max-height: 60vh;
            overflow-y: auto;
            padding: 1rem;
        }

        .gallery::-webkit-scrollbar {
            width: 6px;
        }

        .gallery::-webkit-scrollbar-track {
            background: rgba(255,255,255,0.1);
        }

        .gallery::-webkit-scrollbar-thumb {
            background: #00f3ff;
            border-radius: 3px;
        }

        .project-card {
            width: 180px;
            height: 280px;
            background: rgba(10, 10, 10, 0.8);
            border: 1px solid rgba(0, 243, 255, 0.3);
            position: relative;
            transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            cursor: pointer;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 1.5rem;
            backdrop-filter: blur(5px);
        }

        .project-card:hover {
            transform: translateY(-10px) scale(1.02);
            border-color: #00f3ff;
            box-shadow: 0 0 30px rgba(0, 243, 255, 0.2);
        }

        .project-img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.5;
            transition: opacity 0.5s ease, transform 0.5s ease;
            z-index: -1;
            filter: grayscale(80%);
        }

        .project-card:hover .project-img {
            opacity: 0.8;
            transform: scale(1.1);
            filter: grayscale(0%);
        }

        .project-title {
            font-family: 'Orbitron', sans-serif;
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
            color: #fff;
            transform: translateY(20px);
            transition: transform 0.5s ease;
        }

        .project-cat {
            font-size: 0.7rem;
            color: #00f3ff;
            text-transform: uppercase;
            letter-spacing: 1px;
            transform: translateY(20px);
            transition: transform 0.5s ease 0.1s;
        }

        .project-card:hover .project-title,
        .project-card:hover .project-cat {
            transform: translateY(0);
        }

        /* --- CONTACT SECTION --- */
        #contact-section {
            text-align: center;
            transform: translate(-50%, -50%);
        }

        #contact-section h2 {
            font-family: 'Orbitron', sans-serif;
            font-size: clamp(1.8rem, 4vw, 2.5rem);
            margin-bottom: 1rem;
            text-shadow: 0 0 15px #00f3ff;
        }

        .contact-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            max-width: 900px;
            margin: 0 auto;
        }

        .contact-info {
            text-align: left;
            background: rgba(0,0,0,0.6);
            padding: 1.5rem;
            border: 1px solid rgba(255,255,255,0.1);
            backdrop-filter: blur(10px);
        }

        .contact-info h3 {
            color: #00f3ff;
            font-size: 1rem;
            margin-bottom: 1rem;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .contact-item {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            margin-bottom: 1rem;
            color: rgba(255,255,255,0.8);
            font-size: 0.9rem;
        }

        .contact-item .icon {
            width: 35px;
            height: 35px;
            background: rgba(0,243,255,0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #00f3ff;
            flex-shrink: 0;
        }

        .contact-item a {
            color: rgba(255,255,255,0.8);
            text-decoration: none;
            transition: color 0.3s;
            word-break: break-all;
        }

        .contact-item a:hover {
            color: #00f3ff;
        }

        .contact-form {
            text-align: left;
            background: rgba(0, 0, 0, 0.7);
            padding: 1.5rem;
            border: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
        }

        .form-group { margin-bottom: 1.2rem; }

        .form-control {
            width: 100%;
            background: transparent;
            border: none;
            border-bottom: 1px solid rgba(255, 255, 255, 0.3);
            padding: 0.8rem 0;
            color: #fff;
            font-family: 'Montserrat', sans-serif;
            font-size: 0.9rem;
            transition: border-color 0.3s ease;
        }

        .form-control:focus {
            outline: none;
            border-color: #00f3ff;
            box-shadow: 0 4px 10px -5px rgba(0, 243, 255, 0.5);
        }

        /* --- PAGINATION DOTS --- */
        .pagination {
            position: fixed;
            right: 20px;
            top: 50%;
            transform: translateY(-50%);
            z-index: 25;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .page-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: rgba(255,255,255,0.3);
            border: 1px solid rgba(255,255,255,0.5);
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
        }

        .page-dot::before {
            content: attr(data-label);
            position: absolute;
            right: 25px;
            top: 50%;
            transform: translateY(-50%);
            white-space: nowrap;
            font-size: 0.7rem;
            color: rgba(255,255,255,0.5);
            opacity: 0;
            transition: opacity 0.3s;
            pointer-events: none;
        }

        .page-dot:hover::before {
            opacity: 1;
        }

        .page-dot:hover {
            background: rgba(0,243,255,0.5);
            border-color: #00f3ff;
        }

        .page-dot.active {
            background: #00f3ff;
            border-color: #00f3ff;
            box-shadow: 0 0 10px #00f3ff;
        }

        /* --- LOADING SCREEN --- */
        #loader {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: #000;
            z-index: 100;
            display: flex;
            justify-content: center;
            align-items: center;
            flex-direction: column;
            transition: opacity 1s ease;
        }

        .loader-text {
            font-family: 'Orbitron', sans-serif;
            font-size: 1.2rem;
            color: #00f3ff;
            letter-spacing: 5px;
            margin-top: 20px;
            animation: blink 1s infinite;
        }

        .loader-bar {
            width: 200px;
            height: 2px;
            background: #333;
            margin-top: 10px;
            position: relative;
            overflow: hidden;
        }

        .loader-bar::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            height: 100%;
            width: 0%;
            background: #00f3ff;
            box-shadow: 0 0 10px #00f3ff;
            animation: load 2s ease-in-out forwards;
        }

        @keyframes load { 0% { width: 0%; } 100% { width: 100%; } }
        @keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

        /* --- BUTTON STYLES --- */
        .btn-container {
            display: flex;
            justify-content: center;
            align-items: center;
            margin: 1.5rem 0;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .nav-btn-suivant {
            background: linear-gradient(135deg, #00f3ff, #0080ff);
            color: #000;
            font-family: 'Montserrat', sans-serif;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            padding: 0.8rem 2rem;
            border: none;
            border-radius: 3px;
            cursor: pointer;
            position: relative;
            transition: all 0.35s ease;
            box-shadow: 0 5px 20px rgba(0, 243, 255, 0.3);
            overflow: hidden;
        }

        .nav-btn-suivant:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(0, 243, 255, 0.5);
        }

        .nav-btn-suivant:active {
            transform: scale(0.98);
        }

        .whatsapp-btn {
        position: fixed;
        bottom: 30px;
        right: 30px;
        background: #25D366;
        color: white;
        width: 55px;
        height: 60px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.5rem;
        text-decoration: none;
        box-shadow: 0 10px 30px rgba(37, 211, 102, 0.3);
        z-index: 1000;
        transition: all 0.3s ease;
        animation: pulse 2s infinite;
    }
    .whatsapp-btn:hover {
        transform: scale(1.1);
        color: white;
    }
    @keyframes fadeInUp {
        from {
            opacity: 0;
            transform: translateY(50px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    @keyframes float {
        0%,
        100% {
            transform: translateY(0);
        }
        50% {
            transform: translateY(-20px);
        }
    }
    @keyframes pulse {
        0% {
            box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
        }
        70% {
            box-shadow: 0 0 0 10px rgba(37, 211, 102, 0);
        }
        100% {
            box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
        }
    }
    @media (max-width: 768px) {
       
        .whatsapp-btn {
            bottom: 20px;
            right: 20px;
            width: 50px;
            height: 50px;
        }
    }

        /* --- RESPONSIVE DESIGN --- */
        
        /* Large Desktop */
        @media (min-width: 1400px) {
            .floating-avatar {
                width: 320px;
                height: 380px;
            }
            
            .about-text {
                max-width: 800px;
            }
        }

        /* Desktop */
        @media (max-width: 1200px) {
            #home-section {
                transform: translate(-70%, -50%);
            }
            
            #home-section.active {
                transform: translate(-70%, -50%);
            }
            
            .floating-avatar {
                width: 240px;
                height: 290px;
                left: 78%;
            }
        }

        /* Tablet Landscape */
        @media (max-width: 1024px) {
            nav {
                padding: 1rem;
            }
            
            .nav-links {
                gap: 0.5rem;
            }
            
            .nav-btn {
                font-size: 0.65rem;
                padding: 0.4rem 0.6rem;
            }
            
            #home-section {
                transform: translate(-60%, -50%);
                max-width: 450px;
            }
            
            #home-section.active {
                transform: translate(-60%, -50%);
            }
            
            .floating-avatar {
                width: 200px;
                height: 240px;
                left: 80%;
            }
            
            .pagination {
                right: 10px;
            }
            
            .page-dot {
                width: 10px;
                height: 10px;
            }
        }

        /* Tablet Portrait */
        @media (max-width: 768px) {
            nav {
                padding: 0.8rem;
            }
            
            .nav-links {
                gap: 0.3rem;
            }
            
            .nav-btn {
                font-size: 0.6rem;
                padding: 0.3rem 0.5rem;
                letter-spacing: 1px;
            }
            
            .section {
                top: 55%;
                width: 95%;
            }
            
            #home-section {
                transform: translate(-50%, -50%);
                text-align: center;
                max-width: 90%;
                padding: 0 1rem;
            }
            
            #home-section.active {
                transform: translate(-50%, -50%);
            }
            
            p.subtitle {
                border-left: none;
                padding-left: 0;
                border-top: 3px solid #00f3ff;
                padding-top: 1rem;
                margin: 0 auto 2rem;
            }
            
            .floating-avatar {
                width: 150px;
                height: 180px;
                left: 50%;
                top: 20%;
                opacity: 0.5;
            }
            
            .about-text {
                width: 100%;
                text-align: left;
                border-left: none;
                border-top: 4px solid #00f3ff;
                padding: 1.5rem;
            }
            
            .timeline::before {
                left: 15px;
            }
            
            .timeline-item {
                padding-left: 40px;
            }
            
            .timeline-item::before {
                left: 10px;
                width: 12px;
                height: 12px;
            }
            
            .project-card {
                width: 160px;
                height: 240px;
            }
            
            .pagination {
                display: none;
            }
            
            .contact-container {
                grid-template-columns: 1fr;
            }
        }

        /* Mobile Large */
        @media (max-width: 576px) {
            nav {
                padding: 0.5rem;
            }
            
            .nav-links {
                gap: 0.2rem;
            }
            
            .nav-btn {
                font-size: 0.55rem;
                padding: 0.3rem 0.4rem;
                letter-spacing: 0.5px;
            }
            
            .section {
                top: 52%;
            }
            
            h1 {
                font-size: 2rem;
            }
            
            .section-title {
                font-size: 1.5rem;
            }
            
            .floating-avatar {
                width: 120px;
                height: 150px;
                top: 18%;
            }
            
            .about-text {
                padding: 1rem;
                max-height: 55vh;
            }
            
            .languages-interests {
                grid-template-columns: 1fr;
            }
            
            .timeline {
                max-height: 50vh;
            }
            
            .experience-grid,
            .skills-container,
            .certifications-grid {
                max-height: 50vh;
                grid-template-columns: 1fr;
            }
            
            .gallery {
                max-height: 50vh;
            }
            
            .project-card {
                width: 140px;
                height: 200px;
                padding: 1rem;
            }
            
            .project-title {
                font-size: 0.9rem;
            }
            
            .cta-btn,
            .nav-btn-suivant {
                padding: 0.6rem 1.5rem;
                font-size: 0.75rem;
            }
        }

        /* Mobile Small */
        @media (max-width: 400px) {
            .nav-btn {
                font-size: 0.5rem;
                padding: 0.25rem 0.3rem;
            }
            
            h1 {
                font-size: 1.8rem;
            }
            
            .floating-avatar {
                width: 100px;
                height: 130px;
            }
            
            .skill-tags {
                gap: 0.3rem;
            }
            
            .skill-tag {
                padding: 0.3rem 0.5rem;
                font-size: 0.7rem;
            }
        }

        /* Landscape Mobile */
        @media (max-height: 500px) and (orientation: landscape) {
            nav {
                padding: 0.5rem 1rem;
            }
            
            .section {
                top: 55%;
            }
            
            .floating-avatar {
                width: 100px;
                height: 120px;
                left: 85%;
                top: 50%;
            }
            
            .about-text,
            .timeline,
            .experience-grid,
            .skills-container,
            .certifications-grid,
            .gallery {
                max-height: 50vh;
            }
            
            h1 {
                font-size: 2rem;
                margin-bottom: 0.5rem;
            }
            
            p.subtitle {
                margin-bottom: 1rem;
            }
        }