/* ======================
   Custom Properties / Variables CSS
   ====================== */

:root {
    --navbar-height: 60px; /* Valeur par défaut, sera écrasée par JS */
    /* Light Theme Variables */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-muted: #6c757d;
    --border-color: #dee2e6;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --navbar-bg: rgba(255, 255, 255, 0.95);
    --card-bg: #ffffff;
    --accent-color: #0d6efd;
    --accent-hover: #0b5ed7;
    --success-color: #198754;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
}

/* Dark Theme Variables */
[data-bs-theme="dark"] {
    --bg-primary: #212529;
    --bg-secondary: #343a40;
    --bg-tertiary: #495057;
    --text-primary: #ffffff;
    --text-secondary: #adb5bd;
    --text-muted: #6c757d;
    --border-color: #495057;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --navbar-bg: rgba(33, 37, 41, 0.95);
    --card-bg: #343a40;
    --accent-color: #0d6efd;
    --accent-hover: #0b5ed7;
    --success-color: #198754;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
}

/* High Contrast Theme Variables */
[data-bs-theme="high-contrast"] {
    --bg-primary: #000000;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #333333;
    --text-primary: #ffffff;
    --text-secondary: #ffffff;
    --text-muted: #cccccc;
    --border-color: #ffffff;
    --shadow-color: rgba(255, 255, 255, 0.3);
    --navbar-bg: rgba(0, 0, 0, 0.95);
    --card-bg: #1a1a1a;
    --accent-color: #00ff00;
    --accent-hover: #00cc00;
    --success-color: #00ff00;
    --warning-color: #ffff00;
    --danger-color: #ff0000;
}

/* ======================
   Global Styles
   ====================== */

* {
    transition: color 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--navbar-height);
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
}

section {
    padding-top: 1rem;
}

.hero-section {
    padding-top: var(--navbar-height);
}

/* ======================
   Navigation Styles
   ====================== */

.navbar {
    background-color: var(--navbar-bg) !important;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 10px var(--shadow-color);
}

.navbar-brand {
    color: var(--text-primary) !important;
    font-weight: 700;
    font-size: 1.5rem;
}

.navbar-nav .nav-link {
    color: var(--text-primary) !important;
    font-weight: 500;
    margin: 0 0.2rem;
    padding: 0.5rem 0.5rem !important;
    border-radius: 0.375rem;
    transition: all 0.3s ease;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--accent-color) !important;
    background-color: var(--bg-secondary);
}

.navbar-toggler {
    border: none;
    color: var(--text-primary);
}

.navbar-toggler:focus {
    box-shadow: none;
}

/* Theme Switcher */
.theme-switcher-container .btn {
    border-color: var(--border-color);
    color: var(--text-primary);
}

.theme-switcher-container .btn:hover {
    background-color: var(--bg-secondary);
    border-color: var(--accent-color);
}

.dropdown-menu {
    background-color: var(--card-bg);
    border-color: var(--border-color);
    box-shadow: 0 0.5rem 1rem var(--shadow-color);
}

.dropdown-item {
    color: var(--text-primary);
}

.dropdown-item:hover {
    background-color: var(--bg-secondary);
    color: var(--accent-color);
}

/* ======================
   Hero Section
   ====================== */

.hero-section {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-bottom: 2rem;
    padding-top: var(--navbar-height);
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
}


.hero-content h1 {
    color: var(--text-primary);
    line-height: 1.2;
    font-size: clamp(2rem, 1.2rem + 1.5vw, 2.5rem); /* Nouvelle taille maximale */
}

.hero-content .text-primary {
    color: var(--accent-color) !important;
}

.hero-content .lead {
    color: var(--text-secondary);
    font-size: 1.25rem;
}

.hero-buttons .btn {
    border-radius: 50px;
    padding: 1rem 2rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
}

.hero-buttons .btn-primary {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
}

.hero-buttons .btn-primary:hover {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px var(--shadow-color);
}

.hero-buttons .btn-outline-primary {
    color: var(--accent-color);
    border-color: var(--accent-color);
}

.hero-buttons .btn-outline-primary:hover {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px var(--shadow-color);
}

.hero-card {
    background-color: var(--card-bg);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 30px var(--shadow-color);
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px var(--shadow-color);
}

.hero-card h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.hero-card p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* ======================
   Sections
   ====================== */

section[id]:not(#home) {
    /* padding-top: 1.5rem; */ /* Supprimé pour laisser le JS gérer le décalage */
}

.bg-light-theme {
    background-color: var(--bg-secondary) !important;
}

/* Section Titles */
.display-5 {
    color: var(--text-primary);
    font-weight: 700;
}

.text-muted {
    color: var(--text-muted) !important;
}

/* ======================
   About Section
   ====================== */

.about-content h3 {
    color: var(--text-primary);
    font-weight: 600;
}

.about-content p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.about-content .list-unstyled li {
    color: var(--text-primary);
    font-weight: 500;
}

.about-content .text-primary {
    color: var(--accent-color) !important;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    padding: 2rem 0;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background-color: var(--card-bg);
    border-radius: 15px;
    box-shadow: 0 5px 15px var(--shadow-color);
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px var(--shadow-color);
}

.stat-item h3 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--accent-color);
}

.stat-item p {
    color: var(--text-secondary);
    margin-bottom: 0;
    font-weight: 500;
}

/* ======================
   Services Section
   ====================== */

.service-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    box-shadow: 0 5px 15px var(--shadow-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px var(--shadow-color);
}

.service-card .card-body {
    padding: 2rem;
}

.service-card h4 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

.service-card .text-primary {
    color: var(--accent-color) !important;
}

/* ======================
   Expertise Section
   ====================== */

.expertise-item {
    padding: 2rem 1rem;
    transition: transform 0.3s ease;
}

.expertise-item:hover {
    transform: translateY(-5px);
}

.expertise-item h5 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 1rem;
}

.expertise-item p {
    color: var(--text-muted);
    margin-bottom: 0;
}

.expertise-item .text-primary {
    color: var(--accent-color) !important;
}

/* ======================
   Portfolio Section
   ====================== */

.portfolio-item {
    background-color: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px var(--shadow-color);
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.portfolio-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px var(--shadow-color);
}

.portfolio-image {
    height: 200px;
    overflow: hidden;
}

.placeholder-image {
    height: 100%;
    border-radius: 0;
}

.portfolio-content {
    padding: 1.5rem;
}

.portfolio-content h5 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 1rem;
}

.portfolio-content p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.portfolio-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.portfolio-tech .badge {
    font-size: 0.75rem;
    padding: 0.375rem 0.75rem;
}

/* ======================
   Formations Section
   ====================== */

.formation-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    box-shadow: 0 5px 15px var(--shadow-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.formation-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px var(--shadow-color);
}

.formation-card .card-body {
    padding: 2rem;
}

.formation-card h4 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.formation-card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.formation-card .text-primary {
    color: var(--accent-color) !important;
}

.formation-card .list-unstyled li {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.formation-card .text-success {
    color: var(--success-color) !important;
}

/* ======================
   Blog Section
   ====================== */

.blog-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    box-shadow: 0 5px 15px var(--shadow-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px var(--shadow-color);
}

.blog-image {
    height: 200px;
    overflow: hidden;
}

.blog-card .card-body {
    padding: 1.5rem;
}

.blog-card h5 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 1rem;
}

.blog-card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.blog-card .text-muted {
    color: var(--text-muted) !important;
}

.blog-card .btn {
    font-size: 0.875rem;
    padding: 0.375rem 1rem;
    border-radius: 25px;
}

/* ======================
   Contact Section
   ====================== */

.contact-form {
    background-color: var(--card-bg);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px var(--shadow-color);
    border: 1px solid var(--border-color);
}

.contact-form .form-control {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-primary);
    padding: 1rem;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.contact-form .form-control:focus {
    background-color: var(--bg-secondary);
    border-color: var(--accent-color);
    color: var(--text-primary);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.contact-form .form-control::placeholder {
    color: var(--text-muted);
}

.contact-form .btn-primary {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-form .btn-primary:hover {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px var(--shadow-color);
}

/* ======================
   Footer
   ====================== */

footer {
    background-color: var(--bg-tertiary) !important;
    border-top: 1px solid var(--border-color);
}

footer p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

footer a {
    color: var(--text-secondary);
    font-size: 1.2rem;
    transition: color 0.3s ease;
}

footer a:hover {
    color: var(--accent-color);
}

/* ======================
   Responsive Design
   ====================== */

@media (max-width: 768px) {
    .hero-section {
        text-align: center;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .theme-switcher-container {
        margin-bottom: 1rem;
    }
}

@media (max-width: 576px) {
    .contact-form {
        padding: 2rem 1rem;
    }
    
    .service-card .card-body {
        padding: 1.5rem;
    }
}

/* ======================
   Animations
   ====================== */

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

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

.hero-image {
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

/* ======================
   High Contrast Theme Specific
   ====================== */

[data-bs-theme="high-contrast"] .hero-card,
[data-bs-theme="high-contrast"] .service-card,
[data-bs-theme="high-contrast"] .contact-form,
[data-bs-theme="high-contrast"] .stat-item {
    border: 2px solid var(--border-color);
}

[data-bs-theme="high-contrast"] .navbar-nav .nav-link:hover {
    background-color: var(--accent-color);
    color: var(--bg-primary) !important;
}

[data-bs-theme="high-contrast"] .btn-primary {
    background-color: var(--accent-color);
    color: var(--bg-primary);
    border: 2px solid var(--accent-color);
}

[data-bs-theme="high-contrast"] .btn-outline-primary {
    background-color: transparent;
    color: var(--accent-color);
    border: 2px solid var(--accent-color);
}

[data-bs-theme="high-contrast"] .btn-outline-primary:hover {
    background-color: var(--accent-color);
    color: var(--bg-primary);
}

/* ======================
   Smooth Scrolling
   ====================== */

/* ======================
   Focus Styles for Accessibility
   ====================== */

.btn:focus,
.form-control:focus,
.nav-link:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

[data-bs-theme="high-contrast"] .btn:focus,
[data-bs-theme="high-contrast"] .form-control:focus,
[data-bs-theme="high-contrast"] .nav-link:focus {
    outline: 3px solid var(--accent-color);
    outline-offset: 3px;
}

/* ======================
   Fix pour l'icône du menu Burger (Blanc)
   ====================== */
[data-bs-theme="dark"] .navbar-toggler-icon,
[data-bs-theme="high-contrast"] .navbar-toggler-icon {
    --bs-navbar-toggler-icon-bg: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23ffffff' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}