:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --background-color: #414848;
    --text-color: #ffffff;
    --accent-color: #e74c3c;
    --card-background: #2d2d2d;
    --card-hover-background: #383838;
    --highlight-color: #f39c12;
    --success-color: #2ecc71;
}

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

/* Ajouter au début de votre fichier competences.css ou dans un fichier global */
html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh; /* viewport height */
    font-family: 'Arial', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

main {
    flex: 1 0 auto; /* Cette propriété est cruciale - elle permet au contenu de s'étendre */
}

footer {
    flex-shrink: 0; /* Empêche le footer de rétrécir */
}

.bts-container {
    max-width: 1200px;
    margin: 72px auto;
    padding: 2rem;
    position: relative;
    z-index: 2;
}

/* Header section styles */
.bts-header-section {
    background-color: var(--card-background);
    border-radius: 10px;
    padding: 2.5rem;
    margin-bottom: 2rem;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.bts-title-container {
    margin-bottom: 1.5rem;
}

.bts-title {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.bts-subtitle {
    font-size: 1.3rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

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

.bts-description {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
}

/* Section styles */
.bts-section {
    background-color: var(--card-background);
    border-radius: 10px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    transition: transform 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.bts-section:hover {
    transform: translateY(-5px);
}

.bts-section h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
    border-bottom: 2px solid var(--secondary-color);
    padding-bottom: 0.5rem;
    display: flex;
    align-items: center;
}

.bts-section h3 i {
    margin-right: 0.5rem;
}

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

/* Features grid */
.bts-features {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.feature-item {
    background-color: rgba(0, 0, 0, 0.3);
    padding: 1rem;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: all 0.3s ease;
}

.feature-item:hover {
    background-color: rgba(0, 0, 0, 0.5);
    transform: translateY(-3px);
}

.feature-item i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
}

/* BTS items */
.bts-item {
    margin-bottom: 2rem;
}

.bts-item:last-child {
    margin-bottom: 0;
}

.bts-item-title {
    font-size: 1.2rem;
    color: var(--highlight-color);
    margin-bottom: 1rem;
}

.bts-item ul {
    list-style-type: none;
    padding-left: 1rem;
}

.bts-item ul li {
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
}

.bts-item ul li:before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--secondary-color);
}

/* Two column layout */
.bts-sections {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

/* Technologies grid */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
}

.tech-item {
    background-color: rgba(0, 0, 0, 0.3);
    padding: 0.75rem;
    border-radius: 8px;
    display: flex;
    align-items: center;
    transition: all 0.3s ease;
}

.tech-item:hover {
    background-color: rgba(0, 0, 0, 0.5);
    transform: translateY(-3px);
}

.tech-item i {
    font-size: 1.5rem;
    margin-right: 0.5rem;
    color: var(--secondary-color);
}

/* Experience styling */
.experience-content {
    padding: 1rem;
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
}

.experience-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.company-name {
    font-weight: bold;
    color: var(--secondary-color);
}

.date {
    color: var(--accent-color);
}

.responsibilities {
    margin-top: 1rem;
}

.responsibilities h5 {
    margin-bottom: 0.5rem;
    color: var(--highlight-color);
}

/* Project cards */
.project-card {
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.3s ease;
}

.project-card:hover {
    transform: translateY(-3px);
    background-color: rgba(0, 0, 0, 0.3);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.project-header h4 {
    font-size: 1.3rem;
    color: var(--secondary-color);
}

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

.tag {
    background-color: var(--primary-color);
    color: var(--text-color);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
}

.project-content {
    padding: 0.5rem 0;
}

.project-content h5 {
    margin: 1rem 0 0.5rem;
    color: var(--highlight-color);
}

/* Document placeholders */
.project-documents {
    margin-top: 1.5rem;
}

.document-placeholder {
    border: 2px dashed rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    padding: 2rem;
    margin-top: 1rem;
    min-height: 200px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.document-placeholder.large {
    min-height: 300px;
}

.upload-zone {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: rgba(255, 255, 255, 0.5);
}

.upload-zone i {
    font-size: 2rem;
    margin-bottom: 1rem;
}

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

.competence-item {
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    padding: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.3s ease;
}

.competence-item:hover {
    transform: translateY(-3px);
    background-color: rgba(0, 0, 0, 0.3);
}

.competence-header {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1rem;
}

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

.competence-header h4 {
    font-size: 1.1rem;
    color: var(--highlight-color);
}

.project-link {
    margin-top: 1rem;
    padding-top: 0.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
}

.project-link span {
    color: var(--secondary-color);
}

/* Veille technologique */
.veille-sections {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.veille-item h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--highlight-color);
    margin-bottom: 1rem;
}

/* Bilan personnel */
.bilan-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.bilan-item {
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    padding: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.3s ease;
}

.bilan-item:hover {
    transform: translateY(-3px);
    background-color: rgba(0, 0, 0, 0.3);
}

.bilan-item h4 {
    color: var(--highlight-color);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* Background animation */
#vanta-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

/* Responsive styles */
@media (max-width: 768px) {
    .bts-container {
        padding: 1rem;
        margin: 60px auto;
    }

    .bts-header-section {
        padding: 1.5rem;
    }

    .bts-title {
        font-size: 2.2rem;
    }

    .bts-subtitle {
        font-size: 1.1rem;
    }

    .bts-sections {
        grid-template-columns: 1fr;
    }

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

    .tech-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }

    .project-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

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

.bts-section {
    animation: fadeIn 0.6s ease forwards;
}

.bts-section:nth-child(2) {
    animation-delay: 0.2s;
}

.bts-section:nth-child(3) {
    animation-delay: 0.4s;
}

.bts-section:nth-child(4) {
    animation-delay: 0.6s;
}

/* Scroll effects */
.bts-container {
    scroll-behavior: smooth;
}

/* Print styles */
@media print {
    body {
        background-color: white;
        color: black;
    }

    .bts-container {
        margin: 0;
        padding: 0;
    }

    .bts-section {
        break-inside: avoid;
        page-break-inside: avoid;
        background-color: white;
        border: 1px solid #ddd;
    }

    #vanta-bg {
        display: none;
    }

    .document-placeholder {
        display: none;
    }
}