/* --- VARIABLES & RESET (Système Mode Nuit/Jour) --- */
        :root {
            /* Mode Jour par défaut */
            --primary-dark: #1e293b;
            --primary-light: #f8fafc;
            --accent-blue: #3b82f6;
            --accent-blue-hover: #2563eb;
            --accent-orange: #f97316;
            --accent-green: #10b981;
            --bg-body: #ffffff;
            --bg-gray: #ffffff; /* Même fond que hero partout */
            --text-main: #1e293b;
            --text-muted: #64748b;
            --border: #e2e8f0;
            --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
            --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
        }

        /* Mode Nuit */
        [data-theme="dark"] {
            --primary-dark: #0f172a;
            --primary-light: #1e293b;
            --accent-blue: #3b82f6;
            --accent-blue-hover: #60a5fa;
            --accent-orange: #f97316;
            --accent-green: #10b981;
            --bg-body: #0f172a;
            --bg-gray: #1e293b;
            --text-main: #f8fafc;
            --text-muted: #94a3b8;
            --border: #334155;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
            --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.5), 0 10px 10px -5px rgba(0,0,0,0.3);
        }

        * { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body { font-family: var(--font-main); color: var(--text-main); background: var(--bg-body); line-height: 1.6; overflow-x: hidden; }
        
        /* Utility Classes */
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .text-center { text-align: center; }
        .section-padding { padding: 100px 0; }
        
        .btn {
            display: inline-flex; align-items: center; justify-content: center;
            padding: 12px 24px; border-radius: 8px; font-weight: 600; text-decoration: none;
            transition: all 0.2s; cursor: pointer; border: none; font-size: 1rem;
        }
        .btn-primary { background: var(--accent-blue); color: white; }
        .btn-primary:hover { background: var(--accent-blue-hover); transform: translateY(-2px); box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3); }
        .btn-outline { background: transparent; border: 2px solid rgba(255,255,255,0.2); color: white; }
        .btn-outline:hover { border-color: white; background: rgba(255,255,255,0.05); }
        .btn-secondary { background: white; color: var(--primary-dark); border: 1px solid var(--border); }
        .btn-secondary:hover { background: var(--bg-gray); }

        /* --- HEADER --- */
        header { position: fixed; top: 0; width: 100%; background: rgba(15, 23, 42, 0.9); backdrop-filter: blur(10px); z-index: 1000; border-bottom: 1px solid rgba(255,255,255,0.1); }
        [data-theme="light"] header { background: rgba(255, 255, 255, 0.9); border-bottom: 1px solid var(--border); }
        .nav-inner { display: flex; justify-content: space-between; align-items: center; height: 70px; }
        .logo { font-size: 1.25rem; font-weight: 800; color: white; display: flex; align-items: center; gap: 10px; }
        [data-theme="light"] .logo { color: var(--text-main); }
        .logo span { color: var(--accent-orange); }
        .nav-links { display: flex; gap: 30px; }
        .nav-links a { color: #cbd5e1; text-decoration: none; font-size: 0.95rem; font-weight: 500; transition: color 0.2s; }
        [data-theme="light"] .nav-links a { color: var(--text-muted); }
        .nav-links a:hover { color: white; }
        [data-theme="light"] .nav-links a:hover { color: var(--text-main); }
        
        /* Bouton Toggle Mode */
        .theme-toggle {
            background: var(--accent-blue); color: white; border: none;
            width: 40px; height: 40px; border-radius: 50%;
            display: flex; align-items: center; justify-content: center;
            cursor: pointer; transition: all 0.3s ease;
            margin-left: 20px;
        }
        .theme-toggle:hover { background: var(--accent-blue-hover); transform: scale(1.1); }

        /* --- HERO SECTION (Adaptative Mode) --- */
        .hero { background: var(--primary-dark); min-height: 100vh; display: flex; align-items: center; position: relative; overflow: hidden; padding-top: 70px; }
        [data-theme="light"] .hero { background: linear-gradient(135deg, #1e293b 0%, #3b82f6 100%); }
        .blob { position: absolute; width: 500px; height: 500px; background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, rgba(0,0,0,0) 70%); border-radius: 50%; pointer-events: none; }
        .blob-1 { top: -100px; right: -100px; }
        .blob-2 { bottom: -100px; left: -100px; background: radial-gradient(circle, rgba(249, 115, 22, 0.1) 0%, rgba(0,0,0,0) 70%); }
        [data-theme="light"] .blob-1 { background: radial-gradient(circle, rgba(59, 130, 246, 0.3) 0%, rgba(255,255,255,0) 70%); }
        [data-theme="light"] .blob-2 { background: radial-gradient(circle, rgba(249, 115, 22, 0.2) 0%, rgba(255,255,255,0) 70%); }
        
        .hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; position: relative; z-index: 2; }
        .hero-text { color: white; }
        [data-theme="light"] .hero-text { color: white; }
        .hero-text h1 { font-size: 3.5rem; line-height: 1.1; margin-bottom: 20px; font-weight: 800; letter-spacing: -0.02em; }
        .hero-text p { font-size: 1.2rem; color: #94a3b8; margin-bottom: 30px; max-width: 90%; }
        [data-theme="light"] .hero-text p { color: rgba(255,255,255,0.9); }
        .hero-btns { display: flex; gap: 15px; }

        /* --- CODE EDITOR VISUAL (The "Replay" Animation) --- */
        .hero-visual { perspective: 1000px; }
        .editor-mockup {
            background: #1e1e1e; border-radius: var(--radius-lg); padding: 15px;
            box-shadow: 0 50px 100px -20px rgba(0,0,0,0.5);
            transform: rotateY(-5deg) rotateX(5deg); transition: transform 0.5s ease;
            border: 1px solid #333;
            font-family: 'Courier New', Courier, monospace;
        }
        .hero-visual:hover .editor-mockup { transform: rotateY(0) rotateX(0); }
        
        .editor-header { display: flex; justify-content: space-between; margin-bottom: 15px; border-bottom: 1px solid #333; padding-bottom: 10px; }
        .window-title { color: #94a3b8; font-size: 0.8rem; display: flex; align-items: center; gap: 10px; }
        .dots { display: flex; gap: 6px; }
        .dot { width: 10px; height: 10px; border-radius: 50%; }
        .red { background: #ff5f56; } .yellow { background: #ffbd2e; } .green { background: #27c93f; }

        .code-body { position: relative; height: 300px; color: #d4d4d4; font-size: 0.9rem; line-height: 1.8; padding-right: 10px; }
        .line-numbers { position: absolute; left: 0; top: 0; width: 30px; color: #555; text-align: right; padding-right: 10px; user-select: none; border-right: 1px solid #333; height: 100%; }
        .code-content { margin-left: 35px; }
        
        /* Syntax Highlighting */
        .kw { color: #569cd6; } /* Keyword */
        .fn { color: #dcdcaa; } /* Function */
        .str { color: #ce9178; } /* String */
        .var { color: #9cdcfe; } /* Variable */
        .comment { color: #6a9955; } /* Comment */

        /* Active Line Highlight */
        .active-line { background: rgba(59, 130, 246, 0.2); border-left: 2px solid var(--accent-blue); display: block; margin-left: -35px; padding-left: 35px; width: 100%; }

        /* Cursor Animation */
        .cursor {
            width: 14px; height: 20px; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='white'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M15 15l-2 5L9 9l11 4-5 2zm0 0l5 5M7.188 2.239l.777 2.897M5.136 7.965l-2.898-.777M13.95 4.05l-2.122 2.122m-5.657 5.656l-2.12 2.122' /%3E%3C/svg%3E");
            background-size: contain; position: absolute; top: 0; left: 0; z-index: 10;
            filter: drop-shadow(0 2px 4px rgba(0,0,0,0.5));
            pointer-events: none;
            transition: top 0.5s ease, left 0.5s ease;
        }

        /* --- ABOUT SECTION (Style Pro) --- */
        .about-section { background: var(--primary-dark); }
        [data-theme="light"] .about-section { background: linear-gradient(135deg, #1e293b 0%, #3b82f6 100%); }
        .about-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 60px; align-items: start; margin-top: 50px; }
        .about-content { display: flex; flex-direction: column; gap: 30px; }
        .about-card {
            background: rgba(30, 41, 59, 0.8); backdrop-filter: blur(10px); padding: 30px; border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.1); box-shadow: var(--shadow-sm);
            transition: all 0.3s ease; position: relative;
        }
        [data-theme="light"] .about-card {
            background: rgba(255, 255, 255, 0.15); backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .about-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: var(--accent-blue); }
        .card-icon {
            width: 50px; height: 50px; background: linear-gradient(135deg, var(--accent-blue), var(--accent-blue-hover));
            border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center;
            color: white; margin-bottom: 20px;
        }
        .about-card h3 { font-size: 1.3rem; font-weight: 700; color: white; margin-bottom: 15px; }
        [data-theme="light"] .about-card h3 { color: white; }
        .about-card p { color: rgba(255, 255, 255, 0.9); line-height: 1.7; }
        [data-theme="light"] .about-card p { color: rgba(255, 255, 255, 0.9); }
        
        .stats-showcase { display: grid; grid-template-columns: 1fr; gap: 20px; }
        .stat-item {
            background: rgba(30, 41, 59, 0.8); backdrop-filter: blur(10px); padding: 25px; border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.1); text-align: center;
            transition: all 0.3s ease;
        }
        [data-theme="light"] .stat-item {
            background: rgba(255, 255, 255, 0.15); backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .stat-item:hover { transform: translateY(-3px); border-color: var(--accent-orange); }
        .stat-number {
            display: block; font-size: 2.2rem; font-weight: 800; color: var(--accent-blue);
            margin-bottom: 5px;
        }
        [data-theme="light"] .stat-number {
            color: #60a5fa;
        }
        .stat-text { color: rgba(255, 255, 255, 0.9); font-size: 0.9rem; font-weight: 500; }
        [data-theme="light"] .stat-text { color: rgba(255, 255, 255, 0.9); }

        /* --- ANIMATIONS FLOTTANTES --- */
        @keyframes float {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-20px); }
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes countUp {
            from { opacity: 0; transform: scale(0.5); }
            to { opacity: 1; transform: scale(1); }
        }

        @keyframes orbit {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }

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

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

        .animated-stat {
            opacity: 0;
            animation: fadeInUp 0.8s ease forwards;
        }

        /* --- TIMELINE INNOVANTE --- */
        .timeline-container {
            position: relative;
            max-width: 1000px;
            margin: 0 auto;
            padding: 40px 0;
        }

        .timeline-line {
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 4px;
            background: linear-gradient(180deg, var(--accent-blue), var(--accent-orange));
            transform: translateX(-50%);
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            margin-bottom: 60px;
            opacity: 0;
            transform: translateX(-50px);
            transition: all 0.8s ease;
        }

        .timeline-item.visible {
            opacity: 1;
            transform: translateX(0);
        }

        .timeline-item:nth-child(even) {
            transform: translateX(50px);
        }

        .timeline-item:nth-child(even).visible {
            transform: translateX(0);
        }

        .timeline-dot {
            position: absolute;
            left: 50%;
            top: 20px;
            width: 20px;
            height: 20px;
            background: var(--accent-blue);
            border: 4px solid var(--primary-dark);
            border-radius: 50%;
            transform: translateX(-50%);
            z-index: 2;
            transition: all 0.3s ease;
        }

        [data-theme="light"] .timeline-dot {
            border: 4px solid #1e293b;
        }

        .timeline-dot.featured {
            width: 24px;
            height: 24px;
            background: var(--accent-orange);
            box-shadow: 0 0 0 8px rgba(249, 115, 22, 0.2);
        }

        .timeline-item:hover .timeline-dot {
            transform: translateX(-50%) scale(1.3);
            box-shadow: 0 0 20px rgba(59, 130, 246, 0.6);
        }

        .timeline-content {
            background: rgba(30, 41, 59, 0.8); backdrop-filter: blur(10px);
            padding: 30px;
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.1);
            width: 45%;
            transition: all 0.3s ease;
        }

        [data-theme="light"] .timeline-content {
            background: rgba(30, 41, 59, 0.95);
            border: 1px solid rgba(59, 130, 246, 0.2);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }

        .timeline-item:nth-child(odd) .timeline-content {
            margin-left: auto;
        }

        .timeline-item:hover .timeline-content {
            transform: translateY(-5px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
            border-color: var(--accent-blue);
        }

        .timeline-year {
            color: var(--accent-blue);
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 10px;
        }

        [data-theme="light"] .timeline-year {
            color: #2563eb;
        }

        .timeline-content h3 {
            color: white;
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 15px;
        }

        [data-theme="light"] .timeline-content h3 {
            color: #f8fafc;
        }

        .timeline-content p {
            color: rgba(255, 255, 255, 0.9);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        [data-theme="light"] .timeline-content p {
            color: #cbd5e1;
        }

        .timeline-tech {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .timeline-tech .tech-tag {
            background: rgba(59, 130, 246, 0.2);
            color: #f8fafc;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid rgba(59, 130, 246, 0.3);
        }

        [data-theme="light"] .timeline-tech .tech-tag {
            background: rgba(59, 130, 246, 0.15);
            color: #1e293b;
            border: 1px solid rgba(59, 130, 246, 0.4);
        }

        /* --- SKILLS GALAXY ANIMATION --- */
        .skills-galaxy {
            position: relative;
            width: 100%;
            height: 500px;
            margin: 80px 0;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .center-hub {
            position: absolute;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
            z-index: 10;
        }

        .hub-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-orange));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 2rem;
            box-shadow: 0 0 40px rgba(59, 130, 246, 0.4);
            animation: pulse 3s ease-in-out infinite;
        }

        .center-hub span {
            color: white;
            font-weight: 700;
            font-size: 1.1rem;
        }

        .orbit {
            position: absolute;
            border: 2px solid rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            animation: orbit 60s linear infinite;
        }

        .orbit-1 {
            width: 200px;
            height: 200px;
            animation-duration: 20s;
        }

        .orbit-2 {
            width: 300px;
            height: 300px;
            animation-duration: 30s;
            animation-direction: reverse;
        }

        .orbit-3 {
            width: 400px;
            height: 400px;
            animation-duration: 40s;
        }

        .skill-node {
            position: absolute;
            background: rgba(30, 41, 59, 0.9);
            backdrop-filter: blur(10px);
            border: 2px solid rgba(255, 255, 255, 0.2);
            border-radius: 50%;
            width: 60px;
            height: 60px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 0.7rem;
            color: white;
        }

        [data-theme="light"] .skill-node {
            background: rgba(255, 255, 255, 0.2);
            border: 2px solid rgba(255, 255, 255, 0.3);
        }

        .skill-node:hover {
            transform: scale(1.2);
            border-color: var(--accent-blue);
            box-shadow: 0 0 20px rgba(59, 130, 246, 0.6);
            z-index: 100;
        }

        .skill-icon {
            font-size: 1.2rem;
            margin-bottom: 2px;
        }

        /* Positionnement des noeuds sur les orbites */
        .orbit-1 .skill-node:nth-child(1) { top: -30px; left: calc(50% - 30px); }
        .orbit-1 .skill-node:nth-child(2) { top: calc(50% - 30px); right: -30px; }
        .orbit-1 .skill-node:nth-child(3) { bottom: -30px; left: calc(50% - 30px); }

        .orbit-2 .skill-node:nth-child(1) { top: -30px; left: calc(50% - 30px); }
        .orbit-2 .skill-node:nth-child(2) { top: calc(50% - 30px); right: -30px; }
        .orbit-2 .skill-node:nth-child(3) { bottom: -30px; left: calc(50% - 30px); }
        .orbit-2 .skill-node:nth-child(4) { top: calc(50% - 30px); left: -30px; }

        .orbit-3 .skill-node:nth-child(1) { top: -30px; left: calc(50% - 30px); }
        .orbit-3 .skill-node:nth-child(2) { top: -30px; right: 20px; }
        .orbit-3 .skill-node:nth-child(3) { bottom: -30px; right: calc(50% - 30px); }
        .orbit-3 .skill-node:nth-child(4) { bottom: -30px; left: 20px; }
        .orbit-3 .skill-node:nth-child(5) { top: calc(50% - 30px); left: -30px; }

        /* --- SKILLS CATEGORIES --- */
        .skills-categories {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            margin-top: 80px;
        }

        .category-card {
            background: rgba(30, 41, 59, 0.8);
            backdrop-filter: blur(10px);
            padding: 30px;
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all 0.3s ease;
        }

        [data-theme="light"] .category-card {
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .category-card:hover {
            transform: translateY(-10px);
            border-color: var(--accent-blue);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
        }

        .category-header {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 25px;
        }

        .category-icon {
            font-size: 2rem;
        }

        .category-header h3 {
            color: white;
            font-size: 1.2rem;
            font-weight: 700;
        }

        [data-theme="light"] .category-header h3 {
            color: white;
        }

        .skills-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .skill-chip {
            background: rgba(255, 255, 255, 0.1);
            color: white;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: all 0.2s ease;
            cursor: pointer;
        }

        [data-theme="light"] .skill-chip {
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

        .skill-chip:hover {
            background: var(--accent-blue);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(59, 130, 246, 0.3);
        }

        /* --- RESPONSIVE TIMELINE --- */
        @media (max-width: 768px) {
            .timeline-line {
                left: 30px;
            }

            .timeline-dot {
                left: 30px;
            }

            .timeline-content {
                width: calc(100% - 80px);
                margin-left: 60px !important;
            }

            .timeline-item {
                transform: translateX(-30px) !important;
            }

            .timeline-item.visible {
                transform: translateX(0) !important;
            }

            .skills-galaxy {
                height: 400px;
            }

            .orbit-1 { width: 150px; height: 150px; }
            .orbit-2 { width: 220px; height: 220px; }
            .orbit-3 { width: 290px; height: 290px; }

            .skill-node {
                width: 50px;
                height: 50px;
                font-size: 0.6rem;
            }

            .orbit-1 .skill-node:nth-child(1) { top: -25px; left: calc(50% - 25px); }
            .orbit-1 .skill-node:nth-child(2) { top: calc(50% - 25px); right: -25px; }
            .orbit-1 .skill-node:nth-child(3) { bottom: -25px; left: calc(50% - 25px); }

            .orbit-2 .skill-node:nth-child(1) { top: -25px; left: calc(50% - 25px); }
            .orbit-2 .skill-node:nth-child(2) { top: calc(50% - 25px); right: -25px; }
            .orbit-2 .skill-node:nth-child(3) { bottom: -25px; left: calc(50% - 25px); }
            .orbit-2 .skill-node:nth-child(4) { top: calc(50% - 25px); left: -25px; }

            .orbit-3 .skill-node:nth-child(1) { top: -25px; left: calc(50% - 25px); }
            .orbit-3 .skill-node:nth-child(2) { top: -25px; right: 15px; }
            .orbit-3 .skill-node:nth-child(3) { bottom: -25px; right: calc(50% - 25px); }
            .orbit-3 .skill-node:nth-child(4) { bottom: -25px; left: 15px; }
            .orbit-3 .skill-node:nth-child(5) { top: calc(50% - 25px); left: -25px; }
        }

        /* --- SKILLS SECTION (Style Pro) --- */
        .skills-section { background: var(--primary-dark); color: white; }
        [data-theme="light"] .skills-section { 
            background: linear-gradient(135deg, #1e293b 0%, #3b82f6 100%); 
            color: white;
        }
        .section-header h2 { color: white; }
        .section-header p { color: rgba(255,255,255,0.9); }
        .skills-showcase { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; margin-top: 50px; }
        .skill-domain {
            background: var(--primary-light); padding: 35px; border-radius: var(--radius-lg);
            border: 1px solid rgba(255,255,255,0.1); transition: all 0.3s ease;
        }
        [data-theme="light"] .skill-domain {
            background: rgba(255,255,255,0.15);
            border: 1px solid rgba(255,255,255,0.2);
        }
        .skill-domain:hover { transform: translateY(-5px); border-color: var(--accent-blue); box-shadow: 0 20px 40px rgba(0,0,0,0.3); }
        [data-theme="light"] .skill-domain:hover {
            box-shadow: 0 20px 40px rgba(0,0,0,0.2);
        }
        .domain-header { display: flex; align-items: center; gap: 15px; margin-bottom: 25px; }
        .domain-icon {
            width: 45px; height: 45px; background: var(--accent-blue);
            border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center;
            color: white;
        }
        .domain-header h3 { font-size: 1.2rem; font-weight: 700; color: var(--accent-blue); }
        [data-theme="light"] .domain-header h3 { color: white; }
        .skill-list { display: flex; flex-direction: column; gap: 12px; }
        .skill-item {
            display: flex; justify-content: space-between; align-items: center;
            padding: 12px 16px; background: rgba(255,255,255,0.05);
            border-radius: 8px; border: 1px solid rgba(255,255,255,0.1);
            transition: all 0.2s ease;
        }
        [data-theme="light"] .skill-item {
            background: rgba(255,255,255,0.1);
            border: 1px solid rgba(255,255,255,0.15);
        }
        .skill-item:hover { background: rgba(255,255,255,0.1); transform: translateX(5px); }
        [data-theme="light"] .skill-item:hover {
            background: rgba(255,255,255,0.2);
        }
        .skill-name { font-weight: 500; color: white; }
        .skill-level {
            background: var(--accent-green); color: white; padding: 2px 8px;
            border-radius: 12px; font-size: 0.75rem; font-weight: 600;
        }

        /* --- CONTACT SECTION (Style Pro) --- */
        .contact-section { background: var(--primary-dark); }
        [data-theme="light"] .contact-section { background: linear-gradient(135deg, #1e293b 0%, #3b82f6 100%); }
        .contact-showcase { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; margin-top: 50px; align-items: start; }
        .contact-info { display: flex; flex-direction: column; gap: 25px; margin-bottom: 40px; }
        .info-item {
            display: flex; align-items: center; gap: 20px;
            background: rgba(30, 41, 59, 0.8); backdrop-filter: blur(10px); padding: 25px; border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.1); transition: all 0.3s ease;
        }
        [data-theme="light"] .info-item {
            background: rgba(255, 255, 255, 0.15); backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .info-item:hover { transform: translateY(-3px); border-color: var(--accent-blue); box-shadow: var(--shadow-md); }
        .info-icon {
            width: 50px; height: 50px; background: #eff6ff;
            border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center;
            color: var(--accent-blue); flex-shrink: 0;
        }
        [data-theme="dark"] .info-icon {
            background: rgba(59, 130, 246, 0.1);
        }
        [data-theme="light"] .info-icon {
            background: rgba(59, 130, 246, 0.1);
        }
        .info-details h4 { font-size: 1rem; font-weight: 600; color: white; margin-bottom: 5px; }
        [data-theme="light"] .info-details h4 { color: white; }
        .info-details p { color: rgba(255, 255, 255, 0.9); font-size: 0.95rem; }
        [data-theme="light"] .info-details p { color: rgba(255, 255, 255, 0.9); }
        
        .contact-cta { text-align: center; }
        .response-time {
            margin-top: 15px; color: var(--accent-green); font-size: 0.9rem;
            font-weight: 500; display: flex; align-items: center; justify-content: center; gap: 5px;
        }
        .response-time::before {
            content: '✓'; display: inline-block; width: 16px; height: 16px;
            background: var(--accent-green); color: white; border-radius: 50%;
            text-align: center; line-height: 16px; font-size: 0.7rem;
        }
        
        .contact-visual { display: flex; justify-content: center; align-items: center; }
        .availability-card {
            background: rgba(30, 41, 59, 0.8); backdrop-filter: blur(10px); padding: 35px; border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.1); box-shadow: var(--shadow-lg);
            text-align: center; position: relative; overflow: hidden;
        }
        [data-theme="light"] .availability-card {
            background: rgba(255, 255, 255, 0.15); backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .availability-card::before {
            content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
            background: linear-gradient(90deg, var(--accent-blue), var(--accent-orange));
        }
        .status-indicator {
            width: 12px; height: 12px; border-radius: 50%; margin: 0 auto 20px;
            position: relative;
        }
        .status-indicator.online {
            background: var(--accent-green); box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
        }
        .status-indicator.online::after {
            content: ''; position: absolute; top: 50%; left: 50%;
            transform: translate(-50%, -50%); width: 6px; height: 6px;
            background: white; border-radius: 50%;
        }
        .availability-card h4 { font-size: 1.2rem; font-weight: 700; color: white; margin-bottom: 15px; }
        [data-theme="light"] .availability-card h4 { color: white; }
        .availability-card p { color: rgba(255, 255, 255, 0.9); margin-bottom: 25px; line-height: 1.6; }
        [data-theme="light"] .availability-card p { color: rgba(255, 255, 255, 0.9); }
        .availability-stats {
            display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
        }
        .availability-stats .stat {
            text-align: center; padding: 15px; background: rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md); border: 1px solid rgba(255, 255, 255, 0.2);
        }
        [data-theme="light"] .availability-stats .stat {
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.3);
        }
        .stat-value {
            display: block; font-size: 1.1rem; font-weight: 700; color: var(--accent-blue);
            margin-bottom: 5px;
        }
        [data-theme="light"] .stat-value {
            color: #60a5fa;
        }
        .stat-label { color: rgba(255, 255, 255, 0.9); font-size: 0.85rem; }
        [data-theme="light"] .stat-label { color: rgba(255, 255, 255, 0.9); }

        /* --- FOOTER --- */
        footer { background: var(--primary-dark); color: #94a3b8; padding: 40px 0; text-align: center; border-top: 1px solid rgba(255,255,255,0.1); }
        .social-links { margin-bottom: 20px; }
        .social-links a { color: white; margin: 0 10px; text-decoration: none; font-size: 1.2rem; transition: color 0.2s; }
        .social-links a:hover { color: var(--accent-orange); }

        /* --- RESPONSIVE --- */
        @media (max-width: 768px) {
            .hero-grid { grid-template-columns: 1fr; text-align: center; }
            .hero-btns { justify-content: center; }
            .about-grid { grid-template-columns: 1fr; gap: 40px; }
            .contact-showcase { grid-template-columns: 1fr; gap: 40px; }
            .skills-showcase { grid-template-columns: 1fr; }
            .hero-text h1 { font-size: 2.5rem; }
            .nav-links { display: none; } /* Simplified for mobile */
        }

        /* --- SECTION HEADERS (Adaptation pour fond sombre) --- */
        .section-header { text-align: center; max-width: 700px; margin: 0 auto 60px; }
        .section-header h2 { font-size: 2.5rem; font-weight: 700; color: white; margin-bottom: 15px; }
        [data-theme="light"] .section-header h2 { color: white; }
        .section-header p { color: rgba(255,255,255,0.9); font-size: 1.1rem; }
        [data-theme="light"] .section-header p { color: rgba(255,255,255,0.9); }

        /* Toast */
        .toast {
            position: fixed; bottom: 20px; right: 20px;
            background: var(--primary-dark); color: white;
            padding: 12px 24px; border-radius: 8px;
            box-shadow: 0 10px 15px rgba(0,0,0,0.2);
            transform: translateY(100px); opacity: 0;
            transition: all 0.3s ease; z-index: 2000;
            display: flex; align-items: center; gap: 10px;
        }
        .toast.show { transform: translateY(0); opacity: 1; }