:root { --primary-color: #252525;--secondary-color: #1e293b;--bg-light: #f8fafc;--text-dark: #0f172a;--text-gray: #64748b;--white: #ffffff;--header-height: 70px;--transition: all 0.3s ease;}* {margin: 0;padding: 0;box-sizing: border-box;font-family: sans-serif;transition: opacity 0.1s ease;}a { text-decoration: none; color: inherit; }ul { list-style: none; }img { max-width: 100%; display: block; }.container {max-width: 1200px;margin: 0 auto;padding: 0 24px;}section {padding: 40px 0;}@media (max-width: 575px){section {padding: 66px 0;}header {position: fixed;top: 0;left: 0;width: 100%;height: var(--header-height);background: rgba(255, 255, 255, 0.95);backdrop-filter: blur(10px);box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            z-index: 1000;
            display: flex;
            align-items: center;
            transition: var(--transition);
        }
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }
        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-color);
        }
        .nav-menu {
            display: flex;
            gap: 32px;
        }
        .nav-link {
            font-weight: 500;
            color: var(--secondary-color);
            transition: var(--transition);
        }
        .nav-link:hover {
            color: var(--primary-color);
        }
        .hamburger {
            display: none;
            cursor: pointer;
            flex-direction: column;
            gap: 5px;
        }
        .bar {
            width: 25px;
            height: 3px;
            background-color: var(--secondary-color);
            transition: var(--transition);
        }
        @media (max-width: 460px) {
    .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }
        .hamburger { 
            display: flex; 
            }
        .nav-menu.active {
                transform: scale(1);
            }
        .nav-link {
                font-size: 0.9rem;
            }
            .hamburger.active .bar:nth-child(1) { transform: translateY(8px) rotate(45deg); }
            .hamburger.active .bar:nth-child(2) { opacity: 0; }
            .hamburger.active .bar:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
            }
        .nav-menu {
                border-radius: 20px;
                position: fixed;
                top: var(--header-height);
                right: 0px;
                width: 100px;
                height: 300px;
                background-color: var(--white);
                flex-direction: column;
                align-items: center;
                justify-content: center;
                transition: 0.4s ease-in-out;
                box-shadow: 0 10px 30px rgba(0,0,0,0.2);
                gap: 10px;
                transform: scale(0);
            }
        .nav-link {
            font-weight: 500;
            color: var(--secondary-color);
            transition: var(--transition);
        }
        .nav-link:hover {
            color: var(--primary-color);
        }
        .bar {
            width: 25px;
            height: 3px;
            background-color: var(--secondary-color);
            transition: var(--transition);
        }
    .section-title {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 0.7rem;
            text-align: left;
        }
        .section-subtitle {
            color: var(--text-gray);
            margin-bottom: 0.7rem;
            font-size: 1.0rem;
        }
    .hero {
        font-family: sans-serif;
        background-color: var(--bg-light);
        display: grid;
        grid-template-rows: auto;
        place-items:center;
        width: 100%;  
        margin-top:6%;              }
         .cube-profile{
        grid-row: 1;}
         .profile{
        background: radial-gradient(circle,#a39f9f,#999999,#ffffff);
        width:200px;}
        .hero-content {
            max-width: 400px;}
        .hero h1 {
            font-size: 1.0rem;
            margin-top: 70px;
            margin-bottom: 30px;
            color: var(--secondary-color);
            width :100%;
            font-weight: 100;
            text-align:center;
            margin-bottom :8%;}
        .hello{
            font-size: 1.2rem;
            font-weight: 100;
            margin-bottom: 5px;}
        .name{
            font-size: 1.7rem;
            font-weight: bold;
            margin-bottom: 3%;}
        .hero p {
            font-size: 1.20rem;
            color: var(--text-gray);
            max-width: 600px;}
    .btn-group{
        display:flex;
        font-size: 12px;
        gap :5px;
        margin-bottom: 150px;
        justify-content: center;}
        .btn {
            display: inline-block;
            padding: 12px 24px;
            border-radius: 8px;
            font-weight: 600;
            transition: var(--transition);}
        .btn-primary {
            background-color: var(--primary-color);
            color: var(--white);}
        .btn-primary:hover {
            background-color: #1d4ed8;
            transform: translateY(-2px);}
        .btn-outline {
            border: 2px solid var(--secondary-color);
            color: var(--secondary-color);}
        .btn-outline:hover {
            background-color: var(--secondary-color);
            color: var(--white);}
    .skills-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 24px;}
        .skill-card {
            background: var(--white);
            border: 1px solid #e2e8f0;
            border-radius: 12px;
            padding: 10px;
            transition: var(--transition);
            text-align: center;}
        .skill-icon {
            width: 20px;
            height: 20px;}
        .skill-card h3 {
            margin-bottom: 10px;
            font-size: 1rem;}   
        .skill-list {
            color: var(--text-gray);
            font-size: 0.95rem;}
        .skill-list li {
            margin-bottom: 6px;}
    .projects {
            background-color: var(--bg-light);}
        .projects-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;}
        .project-card {
            background: var(--white);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 4px 6px rgba(0,0,0,0.05);
            transition: var(--transition);}
        .project-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 15px rgba(0,0,0,0.1);}
        .project-img {
            width: 100%;
            height: 200px;
            background-color: #cbd5e1; /* Placeholder gris */
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-gray);
            font-weight: 600;}
        .project-content {
            padding: 24px;}
        .project-tags {
            display: flex;
            gap: 8px;
            margin-bottom: 12px;
            flex-wrap: wrap;}
        .tag {
            background-color: #f1f5f9;
            color: var(--secondary-color);
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;}
        .project-card h3 {
            margin-bottom: 8px;
            font-size: 1.25rem;}
        .project-desc {
            color: var(--text-gray);
            font-size: 0.95rem;
            margin-bottom: 16px;}
        .project-link {
            color: var(--primary-color);
            font-weight: 600;
            font-size: 0.9rem;}
    .education-item {
            border-left: 3px solid var(--primary-color);
            padding-left: 24px;
            margin-bottom: 32px;}
        .education-item h3 {
            font-size: 1.25rem;
            margin-bottom: 4px;}

        .education-meta {
            color: var(--text-gray);
            font-size: 0.9rem;
            margin-bottom: 8px;
            font-style: italic;}
        .certifications-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 16px;
            margin-top: 40px;}
        .cert-badge {
            background: #f8fafc;
            border: 1px solid #e2e8f0;
            padding: 16px;
            border-radius: 8px;
            text-align: center;}
        .cert-badge strong {
            display: block;
            margin-bottom: 4px;
            color: var(--secondary-color); }
        .cert-badge span {
            font-size: 0.85rem;
            color: var(--text-gray);}}
@media (min-width: 600px){
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 1rem;
            text-align: left;}
        .section-subtitle {
            color: var(--text-gray);
            margin-bottom: 3rem;
            font-size: 1.1rem; }
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            z-index: 1000;
            display: flex;
            align-items: center;
            transition: var(--transition);}
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;}
        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-color);}
        .nav-menu {
            display: flex;
            gap: 32px;}
        .nav-link {
            font-weight: 500;
            color: var(--secondary-color);
            transition: var(--transition);}
        .nav-link:hover {
            color: var(--primary-color);}
        .hamburger {
            display: none;
            cursor: pointer;
            flex-direction: column;
            gap: 5px;}
        .bar {
            width: 25px;
            height: 3px;
            background-color: var(--secondary-color);
            transition: var(--transition);}
        .hero {
            padding-top: 5%;
            padding-bottom: 80px;
            background-color: var(--bg-light);    }
        .hero-content{
         max-width: 800px;}
        .cube-profile{
            transform:scale(0.7);
            display: flex;
            justify-content: center;}
         .profile{
            background: radial-gradient(circle,#a39f9f,#999999,#ffffff);}
        .hero h1 {
            font-size: 1.6rem;
            margin-top: 2px;
            margin-bottom: 24px;
            margin-right: 0px;
            color: var(--secondary-color);
            width :100%;
            text-align: center;
            font-weight: 100;}
        .name{  
            font-size: 2.1rem;
            font-weight: bold;
         margin-bottom: 1%;}
        .hello{
             font-size: 1.5rem;
            font-weight: 100;
            margin-bottom: 5px;}
        .hero p {
            font-size: 1.25rem;
            color: var(--text-gray);
            margin-bottom: 32px;
            max-width: 600px;
            margin-top: 20%;
            margin-left: 10%;
            border: 1px solid rgb(147, 147, 147);
            padding: 50px;
            border-radius: 4%;}
        .btn-group {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            justify-content: center;}
        .btn {
            display: inline-block;
            padding: 12px 24px;
            border-radius: 8px;
            font-weight: 600;
            transition: var(--transition);}
        .btn-primary {
            background-color: var(--primary-color);
            color: var(--white);}
        .btn-primary:hover {
            background-color: #1d4ed8;
            transform: translateY(-2px);}
        .btn-outline {
            border: 2px solid var(--secondary-color);
            color: var(--secondary-color);}
        .btn-outline:hover {
            background-color: var(--secondary-color);
            color: var(--white);}
        .skills-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 24px;}
        .skill-card {
            background: var(--white);
            border: 1px solid #e2e8f0;
            border-radius: 12px;
            padding: 24px;
            transition: var(--transition);
        }
        .skill-card:hover {
            box-shadow: 0 10px 20px rgba(0,0,0,0.05);
            border-color: var(--primary-color);
        }
        .skill-icon {
            width: 48px;
            height: 48px;
            background-color: #eff6ff;
            border-radius: 8px;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
        }

        .skill-card h3 {
            margin-bottom: 12px;
            font-size: 1.25rem;
        }

        .skill-list {
            color: var(--text-gray);
            font-size: 0.95rem;
        }

        .skill-list li {
            margin-bottom: 6px;
        }

        .projects {
            background-color: var(--bg-light);
        }

        .projects-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
        }

        .project-card {
            background: var(--white);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 4px 6px rgba(0,0,0,0.05);
            transition: var(--transition);
        }

        .project-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 15px rgba(0,0,0,0.1);
        }

        .project-img {
            width: 100%;
            height: 200px;
            background-color: #cbd5e1; /* Placeholder gris */
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-gray);
            font-weight: 600;
        }

        .project-content {
            padding: 24px;
        }

        .project-tags {
            display: flex;
            gap: 8px;
            margin-bottom: 12px;
            flex-wrap: wrap;
        }

        .tag {
            background-color: #f1f5f9;
            color: var(--secondary-color);
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
        }

        .project-card h3 {
            margin-bottom: 8px;
            font-size: 1.25rem;
        }

        .project-desc {
            color: var(--text-gray);
            font-size: 0.95rem;
            margin-bottom: 16px;
        }

        .project-link {
            color: var(--primary-color);
            font-weight: 600;
            font-size: 0.9rem;
        }

        /* --- FORMATION SECTION --- */
        .education-item {
            border-left: 3px solid var(--primary-color);
            padding-left: 24px;
            margin-bottom: 32px;
        }

        .education-item h3 {
            font-size: 1.25rem;
            margin-bottom: 4px;
        }

        .education-meta {
            color: var(--text-gray);
            font-size: 0.9rem;
            margin-bottom: 8px;
            font-style: italic;
        }

        .certifications-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 16px;
            margin-top: 40px;
        }

        .cert-badge {
            background: #f8fafc;
            border: 1px solid #e2e8f0;
            padding: 16px;
            border-radius: 8px;
            text-align: center;
        }

        .cert-badge strong {
            display: block;
            margin-bottom: 4px;
            color: var(--secondary-color);
        }

        .cert-badge span {
            font-size: 0.85rem;
            color: var(--text-gray);
        }
}

.contact {
            background-color: var(--secondary-color);
            color: var(--white);
            text-align: center;
        }

        .contact h2 {
            color: var(--white);
            margin-bottom: 16px;
        }

        .contact p {
            color: #cbd5e1;
            max-width: 600px;
            margin: 0 auto 32px auto;
        }

        .contact-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-white {
            background-color: var(--white);
            color: var(--secondary-color);
        }
        
        .btn-white:hover {
            background-color: #f1f5f9;
        }

        .btn-outline-white {
            border: 2px solid var(--white);
            color: var(--white);
        }

        .btn-outline-white:hover {
            background-color: var(--white);
            color: var(--secondary-color);
        }

        footer {
            background-color: #0f172a;
            color: #94a3b8;
            padding: 40px 0;
            text-align: center;
            font-size: 0.9rem;
        }

        .footer-links {
            margin-top: 16px;
            display: flex;
            justify-content: center;
            gap: 24px;
        }

        .footer-links a:hover {
            color: var(--white);
        }