/* Reset et variables */
:root {
    --primary-color: #6c5ce7;
    --secondary-color: #a29bfe;
    --dark-bg: #0a0e27;
    --darker-bg: #050811;
    --text-light: #e0e0e0;
    --text-muted: #b0b0b0;
    --accent-color: #fd79a8;
    --card-bg: #1a1f3a;
    --border-color: #2d3561;
    --focus-color: #00d4ff;
    --focus-outline: 3px solid var(--focus-color);
    --focus-outline-offset: 2px;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--dark-bg);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
    padding-top: 80px; /* Décale le contenu sous la barre de navigation fixe */
}

/* Skip link pour l'accessibilité */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--primary-color);
    color: var(--text-light);
    padding: 1rem 2rem;
    text-decoration: none;
    z-index: 10000;
    font-weight: bold;
    border-radius: 0 0 4px 0;
}

.skip-link:focus {
    top: 0;
    outline: var(--focus-outline);
    outline-offset: var(--focus-outline-offset);
}

/* Screen reader only class */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Focus visible pour tous les éléments interactifs */
a:focus,
button:focus,
input:focus,
select:focus,
textarea:focus,
[tabindex]:focus {
    outline: var(--focus-outline);
    outline-offset: var(--focus-outline-offset);
    border-radius: 2px;
}

/* Focus visible pour les éléments sans outline par défaut */
a:focus:not(:focus-visible),
button:focus:not(:focus-visible) {
    outline: none;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
    outline: var(--focus-outline);
    outline-offset: var(--focus-outline-offset);
    border-radius: 2px;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.nav-logo {
    height: 32px;
    width: auto;
    display: block;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.3s;
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    border-radius: 4px;
}

.nav-icon {
    font-size: 1.1rem;
    display: inline-block;
}

.nav-link:hover,
.nav-link:focus {
    color: var(--secondary-color);
    background: rgba(162, 155, 254, 0.1);
}

.nav-link:focus {
    outline: var(--focus-outline);
    outline-offset: var(--focus-outline-offset);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: width 0.3s;
}

.nav-link:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    gap: 4px;
    padding: 0.5rem;
    border-radius: 4px;
}

.nav-toggle:hover,
.nav-toggle:focus {
    background: rgba(162, 155, 254, 0.1);
}

.nav-toggle:focus {
    outline: var(--focus-outline);
    outline-offset: var(--focus-outline-offset);
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-light);
    transition: all 0.3s;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    background: linear-gradient(135deg, var(--darker-bg) 0%, var(--dark-bg) 100%);
    overflow: hidden;
}

.stars {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20% 30%, white, transparent),
        radial-gradient(2px 2px at 60% 70%, white, transparent),
        radial-gradient(1px 1px at 50% 50%, white, transparent),
        radial-gradient(1px 1px at 80% 10%, white, transparent),
        radial-gradient(2px 2px at 90% 40%, white, transparent),
        radial-gradient(1px 1px at 33% 60%, white, transparent),
        radial-gradient(3px 3px at 10% 80%, white, transparent),
        radial-gradient(1px 1px at 40% 20%, white, transparent);
    background-repeat: repeat;
    background-size: 200px 200px;
    animation: sparkle 20s linear infinite;
    opacity: 0.6;
}

@keyframes sparkle {
    from { transform: translateY(0); }
    to { transform: translateY(-200px); }
}

.hero-content {
    position: relative;
    z-index: 1;
    animation: fadeInUp 1s ease-out;
}

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

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 30px;
    transition: all 0.3s;
    font-weight: 600;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: 0 4px 15px rgba(108, 92, 231, 0.4);
}

.btn-primary:hover,
.btn-primary:focus {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(108, 92, 231, 0.6);
}

.btn-primary:focus {
    outline: var(--focus-outline);
    outline-offset: var(--focus-outline-offset);
}

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

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

/* Gallery */
.gallery-section {
    background: var(--darker-bg);
}

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

.filter-btn {
    padding: 10px 20px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-light);
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 0.95rem;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    aspect-ratio: 1;
    cursor: pointer;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    transition: transform 0.3s;
}

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

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
    padding: 2rem 1.5rem 1.5rem;
    transform: translateY(100%);
    transition: transform 0.3s;
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

.gallery-overlay h3 {
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
}

.gallery-overlay p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Setup Section */
.setup-section {
    background: var(--dark-bg);
}

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

.setup-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: all 0.3s;
}

.setup-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(108, 92, 231, 0.2);
}

.setup-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.setup-card h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.setup-card p {
    color: var(--text-muted);
    line-height: 1.6;
}

/* About Section */
.about-section {
    background: var(--darker-bg);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text {
    font-size: 1.1rem;
    line-height: 1.8;
}

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

.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.placeholder-image {
    width: 100%;
    aspect-ratio: 1;
    background: var(--card-bg);
    border: 2px dashed var(--border-color);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 1.2rem;
}

/* Footer */
.footer {
    background: var(--darker-bg);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

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

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.social-link {
    color: var(--secondary-color);
    text-decoration: none;
    transition: color 0.3s;
}

.social-link:hover {
    color: var(--accent-color);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    animation: fadeIn 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    margin: auto;
    display: block;
    max-width: 90%;
    max-height: 90%;
    margin-top: 5%;
    border-radius: 10px;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 35px;
    color: var(--text-light);
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
    background: transparent;
    border: none;
    padding: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    border-radius: 4px;
}

.modal-close:hover,
.modal-close:focus {
    color: var(--accent-color);
    background: rgba(253, 121, 168, 0.1);
}

.modal-close:focus {
    outline: var(--focus-outline);
    outline-offset: var(--focus-outline-offset);
}

.modal-caption {
    text-align: center;
    color: var(--text-light);
    padding: 20px;
    font-size: 1.2rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--dark-bg);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 2rem 0;
        border-top: 1px solid var(--border-color);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 2.5rem;
    }

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

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

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

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