/* Base Styles */
    :root {
        --primary-color: #F4A900;
        --primary-dark: #D48C00;
        --primary-light: #FFD700;
        --secondary-color: #1C1C1C;
        --text-dark: #000000;
        --text-medium: #4b4b4b;
        --text-light: #ffffff;
        --white: #ffffff;
        --gray-50: #f9fafb;
        --gray-100: #f3f4f6;
        --gray-200: #e5e7eb;
        --gray-300: #d1d5db;
        --gray-800: #1f2937;
        --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
        --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
        --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
        --border-radius-sm: 0.25rem;
        --border-radius-md: 0.375rem;
        --border-radius-lg: 0.5rem;
        --border-radius-full: 9999px;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        line-height: 1.6;
        color: var(--text-dark);
        background-color: var(--gray-50);
    }

    h1,
    h2,
    h3,
    h4,
    h5,
    h6 {
        font-weight: 700;
        line-height: 1.2;
        margin-bottom: 1rem;
    }

    a {
        color: var(--primary-color);
        text-decoration: none;
        transition: color 0.3s ease;
    }

    a:hover {
        color: var(--primary-dark);
    }

    ul,
    ol {
        list-style-position: inside;
        margin-bottom: 1rem;
    }

    img {
        max-width: 100%;
        height: auto;
    }

    .container {
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 1.5rem;
    }

    /* Navigation */

    .navbar {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 15px 30px;
        background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
        color: #ffffff;
        position: static;
        width: 100%;
        top: 0;
        left: 0;
        z-index: 10000;
    }

    .logo img {
        width: 120px;
    }

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

    .nav-links li {
        margin: 0 15px;
    }

    .nav-links a {
        text-decoration: none;
        color: #fff;
        font-weight: 600;
        transition: color 0.3s;
    }

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

    .menu-toggle {
        display: none;
        font-size: 1.5rem;
        background: none;
        border: none;
        cursor: pointer;
        color: #fff;
    }

    .mobile-menu {
        display: none;
        position: absolute;
        top: 60px;
        right: 30px;
        background: white;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        border-radius: 8px;
        overflow: hidden;
        z-index: 1000;
    }

    .mobile-menu ul {
        list-style: none;
        padding: 10px;
    }

    .mobile-menu li {
        padding: 10px;
        text-align: center;
    }

    .mobile-menu a {
        text-decoration: none;
        color: #333;
        font-weight: 600;
        display: block;
    }

    .mobile-menu a:hover {
        color: #007BFF;
    }

    @media (max-width: 768px) {
        .nav-links {
            display: none;
        }

        .menu-toggle {
            display: block;
        }

        .mobile-menu.open {
            display: block;
        }
    }

    /* Header */
    .header {
        height: 100vh;
        display: flex;
        align-items: center;
        justify-content: center;
        background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
        color: var(--white);
        position: relative;
        text-align: center;
        padding: 0 1.5rem;
    }

    .header-content {
        max-width: 800px;
    }

    .header h1 {
        font-size: 2.5rem;
        margin-bottom: 1rem;
    }

    .header h2 {
        font-size: 1.5rem;
        font-weight: 500;
        margin-bottom: 2rem;
    }

    .header p {
        font-size: 1.125rem;
        max-width: 600px;
        margin: 0 auto 3rem;
    }

    .scroll-down {
        position: absolute;
        bottom: 2.5rem;
        left: 50%;
        transform: translateX(-50%);
        background-color: rgba(255, 255, 255, 0.2);
        padding: 0.75rem;
        border-radius: 50%;
        color: var(--white);
        display: flex;
        align-items: center;
        justify-content: center;
        animation: bounce 2s infinite;
        transition: background-color 0.3s ease;
    }

    .scroll-down:hover {
        background-color: rgba(255, 255, 255, 0.3);
    }

    @keyframes bounce {

        0%,
        20%,
        50%,
        80%,
        100% {
            transform: translateY(0) translateX(-50%);
        }

        40% {
            transform: translateY(-20px) translateX(-50%);
        }

        60% {
            transform: translateY(-10px) translateX(-50%);
        }
    }

    /* Main Content */
    main {
        padding-top: 4rem;
    }

    .section {
        padding: 4rem 0;
    }

    .section.active {
        display: block;
    }

    .section-title {
        font-size: 1.875rem;
        color: var(--text-dark);
        margin-bottom: 2rem;
        border-bottom: 2px solid var(--primary-color);
        padding-bottom: 0.5rem;
        display: inline-block;
    }

    /* About Section */
    .about-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 2rem;
        margin-bottom: 3rem;
    }


    .about-image img {
        border-radius: var(--border-radius-lg);
        box-shadow: var(--shadow-md);
        width: 40%;
        height: auto;
        object-fit: cover;
        margin-left: 10%;
    }

    .about-content h3 {
        font-size: 1.25rem;
        margin-bottom: 1rem;
    }

    .about-content p {
        margin-bottom: 1.5rem;
        color: var(--text-medium);
    }

    .skills-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 2rem;
        margin-bottom: 3rem;
    }

    .technical-skills h3,
    .soft-skills h3 {
        font-size: 1.25rem;
        margin-bottom: 1rem;
    }

    .skills-group {
        margin-bottom: 1rem;
    }

    .skills-category {
        font-weight: 500;
        margin-bottom: 0.5rem;
    }

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

    .tag {
        display: inline-block;
        padding: 0.25rem 0.75rem;
        border-radius: var(--border-radius-full);
        font-size: 0.875rem;
    }

    .tag-indigo {
        background-color: var(--primary-light);
        color: var(--primary-dark);
    }

    .tag-purple {
        background-color: #f3e8ff;
        color: #7e22ce;
    }

    .tag-blue {
        background-color: #e0f2fe;
        color: #0369a1;
    }

    .skills-list {
        list-style: none;
    }

    .skills-list li {
        display: flex;
        align-items: flex-start;
        margin-bottom: 0.75rem;
    }

    .bullet {
        display: inline-block;
        width: 0.5rem;
        height: 0.5rem;
        background-color: var(--primary-color);
        border-radius: 50%;
        margin-top: 0.5rem;
        margin-right: 0.5rem;
    }

    .education h3 {
        font-size: 1.25rem;
        margin-bottom: 1rem;
    }

    .education-items {
        display: flex;
        flex-direction: column;
        gap: 1.5rem;
    }

    .education-item {
        background-color: var(--white);
        padding: 1.5rem;
        border-radius: var(--border-radius-lg);
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--gray-200);
    }

    .education-header {
        display: flex;
        justify-content: space-between;
        align-items: flex-start;
        margin-bottom: 0.5rem;
    }

    .education-item h4 {
        font-weight: 700;
        margin-bottom: 0.25rem;
    }

    .education-place {
        color: var(--text-medium);
    }

    .education-date {
        color: var(--text-light);
        font-size: 0.875rem;
    }

    .education-description {
        color: var(--text-medium);
    }

    /* Projects Section */
    #projects {
        justify-self: center;
        max-width: 95%;
        margin-top: 90px;
        margin-bottom: 90px;
        background: white;
        padding: 20px;
        box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
        border-radius: 5px;
    }

    .projects-list {
        display: grid;
        grid-template-columns: 1fr;
        gap: 2rem;
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
    }

    .project-card {
        background: var(--white);
        border-radius: 1rem;
        overflow: hidden;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        position: relative;
    }

    .project-card:hover {
        box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    }

    .project-images {
        position: relative;
        width: 100%;
        height: 200px;
        overflow: hidden;
    }

    .project-images img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.5s ease;
    }

    .project-images img:hover {
        transform: scale(1.05);
    }

    .project-content {
        padding: 1.5rem;
    }

    .project-header {
        display: flex;
        flex-direction: column;
        gap: 1rem;
        margin-bottom: 1.5rem;
    }

    .project-header h3 {
        font-size: 1.5rem;
        color: var(--text-dark);
        font-weight: 700;
        line-height: 1.3;
        margin: 0;
    }

    .project-links {
        display: flex;
        gap: 1rem;
    }

    .project-links a {
        color: var(--text-medium);
        font-size: 1.25rem;
        transition: color 0.3s ease;
    }

    .project-links a:hover {
        color: var(--primary-color);
    }

    .project-section {
        margin-bottom: 1.5rem;
    }

    .project-section:last-child {
        margin-bottom: 0;
    }

    .project-section h4 {
        font-size: 1.25rem;
        color: var(--text-dark);
        margin-bottom: 0.75rem;
        font-weight: 600;
    }

    .project-section p {
        color: var(--text-medium);
        line-height: 1.6;
        margin-bottom: 1rem;
    }

    .skills-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 0.5rem;
        margin-top: 0.75rem;
    }

    .tag {
        padding: 0.4rem 0.8rem;
        border-radius: 1.5rem;
        font-size: 0.875rem;
        font-weight: 500;
        transition: transform 0.2s ease;
    }

    .tag:hover {
        transform: scale(1.05);
    }

    .tag-indigo {
        background-color: rgba(244, 169, 0, 0.1);
        color: var(--primary-dark);
    }

    .project-section ul,
    .project-section ol {
        color: var(--text-medium);
        padding-left: 1.5rem;
        margin-bottom: 1.5rem;
    }

    .project-section li {
        margin-bottom: 0.75rem;
        line-height: 1.6;
    }

    /* Media Queries */
    @media (min-width: 768px) {
        .projects-list {
            gap: 2.5rem;
            padding: 0 2rem;
        }

        .project-header {
            flex-direction: row;
            justify-content: space-between;
            align-items: flex-start;
        }

        .project-header h3 {
            font-size: 1.75rem;
        }

        .project-content {
            padding: 2rem;
        }

        .project-section h4 {
            font-size: 1.375rem;
            margin-bottom: 1rem;
        }
    }

    @media (min-width: 1024px) {
        .projects-list {
            gap: 3rem;
            padding: 0;
        }

        .project-card {
            display: grid;
            grid-template-columns: 1fr 1.5fr;
        }

        .project-images {
            height: 100%;
        }

        .project-content {
            padding: 2.5rem;
        }
    }

    @media (min-width: 1280px) {
        .projects-list {
            max-width: 1400px;
        }
    }

    /* rpresentation Section */

    #presentation {
        justify-self: center;
        max-width: 80%;
        margin-top: 90px;
        margin-bottom: 90px;
        background: white;
        padding: 20px;
        box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
        border-radius: 5px;
    }

    #presentation h2 {
        font-size: 30px;
        text-align: center;
    }

    ul {
        list-style-type: square;
        padding-left: 20px;
    }

    /* Tech Watch Section */

    #techwatch {
        justify-self: center;
        max-width: 80%;
        margin-top: 90px;
        margin-bottom: 90px;
        background: white;
        padding: 20px;
        box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
        border-radius: 5px;
    }

    .techwatch-intro {
        margin-bottom: 2.5rem;
    }

    .techwatch-intro h3 {
        font-size: 1.5rem;
        font-weight: 600;
        margin-bottom: 1.2rem;
        color: var(--primary-dark);
    }

    .techwatch-intro p {
        color: var(--text-medium);
        line-height: 1.6;
        margin-bottom: 1.8rem;
    }

    /* Tool section styling */
    .veille-tools {
        background-color: #fbfbfb;
        padding: 2rem;
        border-radius: var(--border-radius-lg);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
        margin-bottom: 2.5rem;
    }

    .veille-tools h4 {
        color: var(--primary-dark);
        font-size: 1.25rem;
        margin-bottom: 1rem;
        font-weight: 500;
    }

    /* Grid layout for tools */
    .tools-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 1.5rem;
    }

    /* Filter section styling */
    .techwatch-filters {
        margin-bottom: 2.5rem;
    }

    /* Techwatch list */
    .techwatch-list {
        display: flex;
        flex-direction: column;
        gap: 2rem;
    }

    /* Card styling */
    .techwatch-card {
        background-color: var(--white);
        border-radius: var(--border-radius-lg);
        overflow: hidden;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .techwatch-card:hover {
        box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
    }

    /* Card image styling */
    .techwatch-image {
        width: 100%;
        height: 16rem;
        position: relative;
        overflow: hidden;
        border-bottom: 2px solid var(--primary-light);
    }

    .techwatch-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    /* Card content */
    .techwatch-content {
        padding: 2rem;
        background-color: #fff;
    }

    .techwatch-header {
        display: flex;
        justify-content: space-between;
        align-items: flex-start;
        margin-bottom: 1.2rem;
    }

    .techwatch-header h3 {
        font-size: 1.625rem;
        font-weight: 600;
        margin-top: 0.5rem;
        margin-bottom: 0;
        color: var(--primary-dark);
    }

    .techwatch-date {
        color: var(--text-light);
        font-size: 0.9rem;
        font-weight: 500;
    }

    /* Description section */
    .techwatch-description {
        color: var(--text-medium);
        line-height: 1.6;
        margin-bottom: 1.8rem;
    }

    /* Section headings */
    .techwatch-section {
        margin-bottom: 1.8rem;
    }

    .techwatch-section h4 {
        font-size: 1.3rem;
        font-weight: 600;
        margin-bottom: 0.8rem;
        color: var(--primary-dark);
    }

    .techwatch-section ul {
        color: var(--text-medium);
        list-style-type: disc;
        padding-left: 20px;
    }

    /* Responsive design */
    @media (max-width: 768px) {
        .tools-grid {
            grid-template-columns: 1fr;
            gap: 1.2rem;
        }

        .techwatch-header h3 {
            font-size: 1.375rem;
        }

        .techwatch-intro h3 {
            font-size: 1.375rem;
        }
    }

    /* Contact Section */
    .contact-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .contact-info h3 {
        font-size: 1.25rem;
        margin-bottom: 1.5rem;
    }

    .contact-methods {
        display: flex;
        flex-direction: column;
        gap: 1.5rem;
        margin-bottom: 3rem;
    }

    .contact-method {
        display: flex;
        align-items: flex-start;
    }

    .contact-method i {
        color: var(--primary-color);
        margin-right: 1rem;
        margin-top: 0.25rem;
    }

    .contact-method h4 {
        font-weight: 500;
        margin-bottom: 0.25rem;
    }

    .availability h3 {
        font-size: 1.25rem;
        margin-bottom: 1rem;
    }

    .availability p {
        color: var(--text-medium);
        margin-bottom: 1rem;
    }

    .availability-box {
        background-color: var(--primary-light);
        color: var(--text-dark);
        padding: 1.5rem;
        border-radius: 12px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        display: flex;
        flex-direction: column;
        gap: 0.8rem;
        max-width: 400px;
        margin: auto;
        border-left: 6px solid var(--primary-dark);
    }

    .availability-period {
        font-weight: 500;
        color: var(--primary-dark);
    }

    .availability-duration {
        color: var(--text-medium);
    }

    .contact-form h3 {
        font-size: 1.25rem;
        margin-bottom: 1.5rem;
    }

    .form-group {
        margin-bottom: 1.5rem;
    }

    .form-group label {
        display: block;
        font-size: 0.875rem;
        font-weight: 500;
        color: var(--text-medium);
        margin-bottom: 0.25rem;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        width: 100%;
        padding: 0.75rem 1rem;
        border: 1px solid var(--gray-300);
        border-radius: var(--border-radius-md);
        font-family: inherit;
        font-size: 1rem;
        transition: border-color 0.3s ease, box-shadow 0.3s ease;
    }

    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
        outline: none;
        border-color: var(--primary-color);
        box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
    }

    .submit-btn {
        width: 100%;
        background-color: var(--primary-color);
        color: var(--white);
        padding: 0.75rem 1rem;
        border: none;
        border-radius: var(--border-radius-md);
        font-size: 1rem;
        font-weight: 500;
        cursor: pointer;
        transition: background-color 0.3s ease;
    }

    .submit-btn:hover {
        background-color: var(--primary-dark);
    }

    .form-status {
        margin-top: 1rem;
        padding: 0.75rem;
        border-radius: var(--border-radius-md);
        display: none;
    }

    .form-status.success {
        background-color: #ecfdf5;
        color: #065f46;
        display: block;
    }

    .form-status.error {
        background-color: #fef2f2;
        color: #b91c1c;
        display: block;
    }

    /* Footer */
    .footer {
        background-color: var(--gray-800);
        color: var(--white);
        padding: 3rem 0;
    }

    .footer-content {
        display: flex;
        flex-direction: column;
        align-items: center;
        margin-bottom: 2rem;
    }

    .footer-info {
        text-align: center;
        margin-bottom: 1.5rem;
    }

    .footer-info h2 {
        font-size: 1.5rem;
        margin-bottom: 0.25rem;
    }

    .footer-info p {
        color: var(--gray-300);
    }

    .footer-social {
        display: flex;
        gap: 1.5rem;
    }

    .footer-social a {
        color: var(--gray-300);
        transition: color 0.3s ease;
    }

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

    .footer-bottom {
        text-align: center;
        padding-top: 2rem;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        color: var(--gray-300);
        font-size: 0.875rem;
    }

    .footer-bottom p {
        margin-bottom: 0.5rem;
    }

    /* Media Queries */
    @media (min-width: 640px) {
        .header h1 {
            font-size: 3rem;
        }

        .header h2 {
            font-size: 1.75rem;
        }

        .project-images {
            grid-template-columns: repeat(2, 1fr);
        }
    }

    @media (min-width: 768px) {
        .nav-links {
            display: flex;
            align-items: center;
            gap: 2rem;
        }

        .menu-toggle {
            display: none;
        }

        .about-grid {
            grid-template-columns: 1fr 2fr;
        }

        .skills-grid {
            grid-template-columns: repeat(2, 1fr);
        }

        .tools-grid {
            grid-template-columns: repeat(2, 1fr);
        }

        .internship-card {
            flex-direction: row;
        }

        .internship-image {
            width: 33.333%;
            height: auto;
        }

        .internship-content {
            width: 66.667%;
        }

        .techwatch-card {
            flex-direction: row;
        }

        .techwatch-image {
            width: 33.333%;
            height: auto;
        }

        .techwatch-content {
            width: 66.667%;
        }

        .contact-grid {
            grid-template-columns: repeat(2, 1fr);
        }

        .footer-content {
            flex-direction: row;
            justify-content: space-between;
            align-items: center;
        }

        .footer-info {
            text-align: left;
            margin-bottom: 0;
        }
    }

    @media (min-width: 1024px) {
        .header h1 {
            font-size: 3.5rem;
        }

        .header h2 {
            font-size: 2rem;
        }
    }

    .apercu-doc {
        max-width: 400px;
        border-radius: 10px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
        transition: transform 0.2s ease, box-shadow 0.2s ease;
        cursor: pointer;
    }

    .apercu-doc:hover {
        transform: scale(1.05);
        box-shadow: 0 6px 14px rgba(0, 0, 0, 0.25);
    }

    .word-banner {
        display: inline-flex;
        align-items: center;
        background-color: #2B579A;
        /* Couleur Word */
        color: white;
        padding: 10px 20px;
        border-radius: 8px;
        text-decoration: none;
        font-weight: bold;
        transition: background-color 0.3s;
    }

    .word-banner:hover {
        background-color: #1d3e73;
    }

    .word-banner img {
        width: 24px;
        height: 24px;
        margin-right: 10px;
    }