/* Reset et base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #171717;
    --secondary-color: #B87333;
    --accent-color: #cd8544;
    --text-color: #171717;
    --light-bg: #fafafa;
    --white: #ffffff;
    --dark-bg: #171717;
    --gradient-primary: linear-gradient(135deg, #171717 0%, #262626 50%, #404040 100%);
    --gradient-secondary: linear-gradient(135deg, #B87333 0%, #cd8544 100%);
}

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

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background: var(--dark-bg);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--white);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    background: var(--secondary-color);
    color: var(--white);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.nav-toggle .bar {
    width: 25px;
    height: 3px;
    background: var(--white);
    border-radius: 3px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    padding-top: 80px;
    text-align: center;
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(184, 115, 51, 0.2) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    max-width: 800px;
    padding: 2rem;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.85;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--secondary-color);
    color: var(--white);
    box-shadow: 0 0 20px rgba(184, 115, 51, 0.4);
}

.btn-primary:hover {
    background: var(--accent-color);
    box-shadow: 0 0 30px rgba(205, 133, 68, 0.6);
    transform: translateY(-3px);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
    margin-left: 1rem;
}

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

/* Sections */
.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-color);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--gradient-primary);
    margin: 1rem auto 0;
    border-radius: 2px;
}

/* Présentation */
.presentation {
    background: var(--white);
}

.presentation-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    align-items: center;
}

.presentation-image {
    text-align: center;
}

.presentation-image img {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid var(--secondary-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.presentation-text h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.presentation-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

/* Certifications */
.certifications {
    background: var(--light-bg);
    border-bottom: 4px solid var(--secondary-color);
    padding-bottom: 5rem;
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    place-items: center;
}

.cert-card {
    background: var(--white);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.cert-card:hover {
    transform: translateY(-10px);
}

.cert-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--white);
    font-size: 2rem;
}

.cert-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.cert-card p {
    color: #666;
    margin-bottom: 1.5rem;
}

.cert-card .btn {
    padding: 0.7rem 1.5rem;
    font-size: 0.9rem;
}

/* Parcours */
.parcours {
    background: linear-gradient(135deg, #171717 0%, #262626 50%, #404040 100%);
    color: var(--white);
    position: relative;
    margin-top: 3rem;
}

.parcours::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23B87333' fill-opacity='0.08'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
    pointer-events: none;
}

.parcours .section-title {
    color: var(--white);
}

.parcours .section-title::after {
    background: var(--secondary-color);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.timeline-item {
    display: flex;
    justify-content: flex-end;
    padding-right: 50%;
    position: relative;
    margin-bottom: 3rem;
}

.timeline-item:nth-child(even) {
    justify-content: flex-start;
    padding-right: 0;
    padding-left: 50%;
}

.timeline-content {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    max-width: 400px;
    margin-right: 30px;
    border: 1px solid rgba(184, 115, 51, 0.3);
    position: relative;
    z-index: 1;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-right: 0;
    margin-left: 30px;
}

.timeline-date {
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.timeline-content h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--white);
}

.timeline-content p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
}

/* Section Projets */
.projets {
    background: linear-gradient(180deg, var(--light-bg) 0%, var(--white) 100%);
}

.tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 1rem 2.5rem;
    background: var(--white);
    border: 2px solid var(--secondary-color);
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    color: var(--secondary-color);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.tab-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-secondary);
    transition: left 0.4s ease;
    z-index: 0;
}

.tab-btn:hover::before,
.tab-btn.active::before {
    left: 0;
}

.tab-btn:hover,
.tab-btn.active {
    color: var(--white);
    border-color: transparent;
    box-shadow: 0 8px 25px rgba(184, 115, 51, 0.4);
    transform: translateY(-3px);
}

.tab-btn span {
    position: relative;
    z-index: 1;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2.5rem;
}

.project-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(184, 115, 51, 0.1);
    position: relative;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-secondary);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.project-card:hover::before {
    transform: scaleX(1);
}

.project-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.15);
}

.project-image {
    height: 220px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 4rem;
    position: relative;
    overflow: hidden;
}

.project-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(0, 0, 0, 0.3) 100%);
}

.project-image i {
    position: relative;
    z-index: 1;
    transition: transform 0.4s ease;
}

.project-card:hover .project-image i {
    transform: scale(1.15);
}

.project-image img {
    transition: transform 0.4s ease;
}

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

.project-content {
    padding: 2rem;
}

.project-content h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-weight: 700;
    line-height: 1.3;
}

.project-content p {
    color: #555;
    margin-bottom: 1.5rem;
    line-height: 1.7;
    font-size: 0.95rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-bottom: 1.5rem;
}

.tag {
    background: linear-gradient(135deg, rgba(184, 115, 51, 0.1) 0%, rgba(205, 133, 68, 0.15) 100%);
    padding: 0.4rem 1rem;
    border-radius: 25px;
    font-size: 0.8rem;
    color: var(--secondary-color);
    font-weight: 600;
    border: 1px solid rgba(184, 115, 51, 0.2);
    transition: all 0.3s ease;
}

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

.project-content .btn {
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
    padding: 0.8rem 1.5rem;
    font-size: 0.9rem;
}

.project-content .btn i {
    margin-right: 0.4rem;
}

.project-category {
    display: inline-block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--secondary-color);
    font-weight: 700;
    margin-bottom: 0.8rem;
}

.project-category i {
    margin-right: 0.4rem;
}

.project-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.project-image.stage-image {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 2rem;
}

.project-image.stage-image img {
    max-width: 80%;
    max-height: 80%;
    object-fit: contain;
    position: relative;
    z-index: 1;
}

.tab-btn i {
    margin-right: 0.5rem;
}

@media (max-width: 768px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .tab-btn {
        width: 100%;
        max-width: 300px;
    }
    
    .project-buttons {
        flex-direction: column;
    }
    
    .project-buttons .btn {
        width: 100%;
        text-align: center;
    }
}

.atelier-intro {
    font-size: 0.85rem;
    color: #666;
    margin: 0.8rem 0;
    line-height: 1.5;
}

.doc-intro {
    background: linear-gradient(135deg, rgba(184, 115, 51, 0.08) 0%, rgba(205, 133, 68, 0.12) 100%);
    padding: 1.5rem 2rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    border-left: 4px solid var(--secondary-color);
}

.doc-intro p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-color);
    margin: 0;
}

/* Documentation */
.documentation {
    background: var(--white);
}

.doc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.doc-card {
    background: var(--light-bg);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.doc-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.doc-card:hover::before {
    opacity: 0.1;
}

.doc-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.doc-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.doc-icon img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.doc-icon i {
    font-size: 4rem;
    color: var(--secondary-color);
}

.doc-card h3 {
    font-size: 1.1rem;
    color: var(--primary-color);
    position: relative;
    z-index: 1;
}

/* Veille Technologique */
.veille {
    background: var(--light-bg);
}

.veille-intro {
    max-width: 800px;
    margin: 0 auto 3rem;
    text-align: center;
}

.veille-intro h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.veille-intro p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #666;
}

.veille-topic {
    background: var(--white);
    border-radius: 15px;
    padding: 2rem;
    margin-bottom: 3rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.veille-topic h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.veille-topic h3 i {
    color: var(--secondary-color);
}

.veille-topic > p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2rem;
    color: #666;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.article-card {
    background: var(--light-bg);
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.article-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: var(--gradient-primary);
}

.article-content {
    padding: 1.5rem;
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.article-card h4 {
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
    color: var(--primary-color);
}

.article-card p {
    font-size: 0.95rem;
    color: #666;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.article-card .article-link {
    color: var(--secondary-color);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.article-card .article-link:hover {
    text-decoration: underline;
}

/* Contact */
.contact {
    background: var(--white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.contact-info p {
    margin-bottom: 2rem;
    line-height: 1.6;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.8rem;
    background: var(--light-bg);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.contact-link:hover {
    background: var(--gradient-primary);
    color: var(--white);
    transform: translateX(10px);
}

.contact-link i {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    border-radius: 50%;
    color: var(--primary-color);
}

.contact-form {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: 15px;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.contact-info p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2rem;
    color: #666;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--light-bg);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.contact-link:hover {
    background: var(--secondary-color);
    color: var(--white);
}

.contact-link i {
    font-size: 1.5rem;
    color: var(--secondary-color);
}

.contact-link:hover i {
    color: var(--white);
}

.contact-form {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: 15px;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* BTS Section */
.bts-info {
    padding: 5rem 0;
    margin-top: 2rem;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-top: 4px solid var(--secondary-color);
    border-bottom: 4px solid var(--secondary-color);
    position: relative;
}

.bts-info::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23B87333' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
    pointer-events: none;
}

.bts-content {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.bts-intro {
    font-size: 1.15rem;
    margin-bottom: 2.5rem;
    color: var(--text-color);
    line-height: 1.8;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.bts-content p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: var(--text-color);
}

.bts-specializations {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
    justify-content: center;
}

.bts-card {
    flex: 1;
    max-width: 350px;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.bts-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.bts-card h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.bts-card p {
    margin: 0;
    font-size: 1rem;
    line-height: 1.5;
}

.bts-card.sisr {
    background: linear-gradient(135deg, #B87333 0%, #cd8544 100%);
    color: white;
}

.bts-card.slam {
    background: linear-gradient(135deg, #171717 0%, #404040 100%);
    color: white;
}

.formation-details {
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 2px solid rgba(184, 115, 51, 0.2);
}

@media (max-width: 768px) {
    .bts-specializations {
        flex-direction: column;
        align-items: center;
    }
    
    .bts-card {
        max-width: 100%;
    }
}

/* Footer */
.footer {
    background: var(--dark-bg);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 10px;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 50px;
    height: 3px;
    background: var(--secondary-color);
}

.footer-section p,
.footer-section a {
    color: #bdc3c7;
    line-height: 2;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #bdc3c7;
}

/* Documentation Detail Pages */
.doc-detail {
    max-width: 900px;
    margin: 0 auto;
}

.doc-detail h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

.doc-detail h3 {
    color: var(--primary-color);
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.doc-detail p {
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: #555;
}

.doc-detail ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: 2rem;
}

.doc-detail ul li {
    padding: 0.8rem 0;
    padding-left: 2rem;
    position: relative;
}

.doc-detail ul li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-size: 1.2rem;
}

.pdf-section {
    margin-top: 3rem;
    padding: 2rem;
    background: var(--light-bg);
    border-radius: 15px;
}

.pdf-viewer {
    margin: 2rem 0;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    overflow: hidden;
}

.pdf-viewer iframe {
    display: block;
    border: none;
}

.pdf-download {
    text-align: center;
    margin-top: 2rem;
}

.pdf-download .btn {
    font-size: 1.1rem;
    padding: 1rem 2rem;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

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

.animate-fade-in {
    animation: fadeIn 1s ease-out;
}

.animate-slide-up {
    animation: slideUp 1s ease-out 0.3s both;
}

.animate-fade-in-delay {
    animation: fadeIn 1s ease-out 0.6s both;
}

.animate-bounce-in {
    animation: bounceIn 1s ease-out 0.9s both;
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Hover animations */
.cert-card {
    transition: all 0.3s ease;
}

.cert-card:hover {
    animation: pulse 0.5s ease;
}

.project-card {
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-10px) scale(1.02);
}

.doc-card {
    transition: all 0.3s ease;
}

.doc-card:hover {
    transform: translateY(-10px) rotate(2deg);
}

.btn {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

/* Ateliers Grid - Documentation Page */
.ateliers-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.atelier-card {
    background: var(--white);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #eee;
}

.atelier-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.atelier-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--light-bg);
    border-radius: 50%;
}

.atelier-icon i {
    font-size: 2.5rem;
}

.atelier-card h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.atelier-card p {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.atelier-link {
    display: inline-block;
    padding: 0.7rem 1.5rem;
    background: var(--secondary-color);
    color: var(--white);
    border-radius: 25px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.atelier-link:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
}

.atelier-about {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    margin-top: 2rem;
}

.atelier-about h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.atelier-about p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 1rem;
}

/* Hero enhancements for index page */
.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-block;
    background: var(--secondary-color);
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.hero-badge i {
    margin-right: 0.5rem;
}

.highlight-text {
    color: var(--secondary-color);
}

.hero-subtitle {
    font-size: 1.3rem;
    opacity: 0.9;
    margin-bottom: 2rem;
    font-weight: 300;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.hero-social {
    margin-top: 2rem;
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.social-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--white);
    font-size: 1.3rem;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.social-icon:hover {
    background: var(--secondary-color);
    border-color: var(--secondary-color);
    transform: translateY(-3px);
}

/* Skills tags */
.skills-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-top: 1.5rem;
}

.skill-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--light-bg);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.skill-tag i {
    color: var(--secondary-color);
}

/* Quote icon */
.quote-icon {
    color: var(--secondary-color);
    margin-right: 0.5rem;
    opacity: 0.5;
}

/* Image wrapper for profile */
.image-wrapper {
    position: relative;
    display: inline-block;
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: linear-gradient(135deg, transparent 50%, rgba(184, 115, 51, 0.2) 100%);
    pointer-events: none;
}

/* BTS card enhancements */
.bts-card-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
}

.bts-card-icon i {
    font-size: 1.8rem;
}

.active-spec {
    position: relative;
}

.spec-badge {
    position: absolute;
    top: -10px;
    right: -10px;
    background: var(--white);
    color: var(--secondary-color);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.75rem;
    font-weight: 700;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
}

/* Competences grid */
.competences-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
    text-align: left;
}

.competence-item {
    background: var(--light-bg);
    padding: 1.5rem;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.competence-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.competence-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.competence-icon i {
    color: var(--white);
    font-size: 1.3rem;
}

.competence-item h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.competence-item p {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 0;
}

/* Certification card enhancements */
.featured-cert {
    position: relative;
}

.cert-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--secondary-color);
    color: var(--white);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
}

.cert-badge i {
    margin-right: 0.3rem;
}

/* Filtres documentation */
.filter-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
}

.filter-btn {
    padding: 10px 20px;
    border: 2px solid var(--secondary-color);
    background: transparent;
    color: var(--text-color);
    border-radius: 25px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.filter-btn:hover {
    background: var(--secondary-color);
    color: var(--white);
    transform: translateY(-2px);
}

.filter-btn.active {
    background: var(--secondary-color);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(184, 115, 51, 0.3);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 992px) {
    .presentation-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-item,
    .timeline-item:nth-child(even) {
        padding-left: 60px;
        padding-right: 0;
        justify-content: flex-start;
    }

    .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        margin-left: 0;
        margin-right: 0;
    }

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

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

    .skills-tags {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--dark-bg);
        flex-direction: column;
        padding: 1rem;
        gap: 0;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-link {
        padding: 1rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-toggle {
        display: flex;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-content h2 {
        font-size: 1.3rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .tabs {
        flex-direction: column;
        align-items: center;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .ateliers-grid {
        grid-template-columns: 1fr;
    }

    .competences-grid {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        display: flex;
        flex-direction: column;
        gap: 1rem;
    }

    .btn-secondary {
        margin-left: 0;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 1.8rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
        width: 100%;
        text-align: center;
    }

    .btn-secondary {
        margin-left: 0;
        margin-top: 1rem;
    }

    .section {
        padding: 40px 0;
    }

    .section-title {
        font-size: 1.6rem;
        margin-bottom: 2rem;
    }

    .container {
        padding: 0 15px;
    }

    .presentation-image img {
        width: 180px;
        height: 180px;
    }

    .presentation-text h3 {
        font-size: 1.4rem;
    }

    .presentation-text p {
        font-size: 1rem;
    }

    .cert-card {
        padding: 1.5rem;
    }

    .cert-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }

    .cert-card h3 {
        font-size: 1.1rem;
    }

    .footer-content {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }

    .footer-section {
        width: 100%;
    }

    .filter-buttons {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .filter-btn {
        padding: 0.4rem 0.8rem;
        font-size: 0.85rem;
    }

    .atelier-card {
        padding: 1.2rem;
    }

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

    .timeline-content {
        padding: 1rem;
    }

    .competence-block {
        padding: 1rem;
    }

    .competence-block h3 {
        font-size: 1.1rem;
    }

    .competence-block ul {
        font-size: 0.9rem;
        line-height: 1.6;
    }

    .pdf-container iframe {
        height: 400px;
    }

    .veille-article {
        padding: 1rem;
    }

    .hero-badge {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }

    .hero-social {
        gap: 1rem;
    }

    .social-icon {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
}

/* Amélioration tactile pour mobile */
@media (hover: none) and (pointer: coarse) {
    .nav-link,
    .btn,
    .filter-btn,
    .atelier-link,
    .project-card,
    .cert-card {
        -webkit-tap-highlight-color: transparent;
    }

    .btn:active,
    .filter-btn:active,
    .nav-link:active {
        transform: scale(0.98);
    }

    .project-card:hover,
    .cert-card:hover,
    .atelier-card:hover {
        transform: none;
    }
}