/* Responsive : tablette et mobile */
/* Masquer le bouton menu-toggle sur desktop et tablette */
.menu-toggle {
    display: none;
}

@media (max-width: 600px) {
    .menu-toggle {
        display: flex;
    }
}
    /* ...existing code... */
@media (max-width: 900px) {
    .header-container {
        padding: 0 var(--spacing-md);
    }
    nav {
        gap: var(--spacing-md);
    }
    nav a {
        font-size: 15px;
    }
    .hero-title {
        font-size: 28px;
        letter-spacing: 2px;
    }
    .portfolio-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-md);
    }
    .portfolio-container,
    .detail-container,
    .admin-container {
        padding: var(--spacing-md);
    }
    .detail-gallery {
        grid-template-columns: 1fr;
    }
    .admin-header {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: stretch;
    }
    .admin-actions {
        justify-content: center;
    }
}

@media (max-width: 600px) {
    .nav-wrapper {
        width: 100%;
    }
    nav {
        background: rgba(0,0,0,0.98);
        border-radius: 0 0 8px 8px;
        box-shadow: 0 4px 16px rgba(0,0,0,0.15);
    }
    nav a {
        color: #fff;
    }
    /* Menu burger/flèche */
    .menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        background: none;
        border: none;
        font-size: 28px;
        color: var(--text-white);
        cursor: pointer;
        margin-bottom: var(--spacing-sm);
        transition: transform 0.3s;
    }
    .menu-toggle .arrow {
        display: inline-block;
        transition: transform 0.3s;
    }
    .menu-toggle.active .arrow {
        transform: rotate(180deg);
    }
    nav {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
        width: 100%;
        margin-top: 0;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: max-height 0.4s cubic-bezier(.4,0,.2,1), opacity 0.3s;
    }
    nav.active {
        max-height: 500px;
        opacity: 1;
        margin-top: var(--spacing-sm);
    }
    nav a {
        font-size: 16px;
        padding: 10px 0;
        width: 100%;
        text-align: center;
        white-space: normal;
        border-bottom: 1px solid var(--border-light);
        background: transparent;
    }
    nav a:last-child {
        border-bottom: none;
    }
    nav a::after {
        display: none;
    }
    .header-container {
        flex-direction: column;
        align-items: center;
        padding: var(--spacing-sm) 0;
        height: auto;
        background: var(--bg-dark);
        z-index: 1000;
    }
    .logo {
        font-size: 22px;
        margin-bottom: var(--spacing-xs);
        text-align: center;
        width: 100%;
    }
    /* Pour éviter le débordement du header sur les images */
    main {
        margin-top: calc(var(--header-height) + 10px);
    }
}
@media (max-width: 600px) {
    .header-container {
        flex-direction: column;
        align-items: center;
        padding: var(--spacing-sm) 0;
        height: auto;
    }
    .logo {
        font-size: 22px;
        margin-bottom: var(--spacing-sm);
        text-align: center;
        width: 100%;
    }
    nav {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
        width: 100%;
        margin-top: var(--spacing-sm);
    }
    nav a {
        font-size: 16px;
        padding: 10px 0;
        width: 100%;
        text-align: center;
        white-space: normal;
        border-bottom: 1px solid var(--border-light);
    }
    nav a:last-child {
        border-bottom: none;
    }
    nav a::after {
        display: none;
    }
    .hero-title {
        font-size: 22px;
        letter-spacing: 1px;
        margin-bottom: var(--spacing-md);
    }
    .hero-subtitle {
        font-size: 13px;
    }
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    .portfolio-container {
        padding: var(--spacing-xs);
    }
    .data-table {
        font-size: 13px;
    }
    .data-table th,
    .data-table td {
        padding: var(--spacing-xs);
    }
    .contact-form {
        padding: var(--spacing-sm);
    }
}
:root {
    /* === CHARTE GRAPHIQUE PORTFOLIO === */
    /* Couleurs principales */
    --primary-color: #000;
    --primary-hover: #333;
    --secondary-color: #666;
    --secondary-hover: #888;
    /* Couleurs de fond */
    --bg-main: #ffffff;
    --bg-white: #fff;
    --bg-light: #f8f8f8;
    --bg-lighter: #fafafa;
    --bg-dark: #000;
    --bg-overlay: rgba(197, 197, 197, 0.8);
    /* Couleurs de texte */
    --text-primary: #000;
    --text-secondary: #666;
    --text-light: #999;
    --text-white: #fff;
    /* Bordures et séparateurs */
    --border-color: #e0e0e0;
    --border-light: #f0f0f0;
    /* Ombres */
    --shadow-light: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-medium: 0 4px 20px rgba(0,0,0,0.15);
    --shadow-heavy: 0 8px 30px rgba(0,0,0,0.2);
    /* Espacements */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;
    /* Tailles */
    --max-width-content: 1400px;
    --max-width-form: 500px;
    --header-height: 80px;
    /* Police */
    --font-family: 'Helvetica Neue', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    --font-size-base: 16px;
    --font-size-large: 18px;
    --font-size-title: 24px;
    --font-size-big: 36px;
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;


/* Portfolio Grid */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 18px;
    margin-top: 0;
    align-items: stretch;
}

.portfolio-item {
    background: var(--bg-white);
    overflow: hidden;
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
    cursor: pointer;
    border-radius: 0;
    position: relative;
    aspect-ratio: 1/1;
    min-height: 0;
    display: flex;
    align-items: stretch;
    animation: fadeIn 0.6s ease forwards;
}
.portfolio-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-heavy);
}
.portfolio-item:hover .portfolio-image {
    transform: scale(1.08);
    filter: brightness(0.85);
}

.portfolio-image-container {
    width: 100%;
    height: 100%;
    overflow: hidden;
    position: relative;
    background: #f8f8f8;
    display: flex;
    align-items: stretch;
    height: 400px;
}

.portfolio-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s, filter 0.3s;
    display: block;
}

/* Overlay renforcé pour la lisibilité du texte */
.portfolio-content {
    position: absolute;
    left: 0; right: 0; bottom: 0;
    width: 100%;
    padding: var(--spacing-lg);
    background: linear-gradient(0deg,rgba(0,0,0,0.85) 90%,rgba(0,0,0,0.0) 100%);
    color: #fff;
    opacity: 1;
    min-height: 60px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-end;
    pointer-events: none;
    transition: opacity 0.2s;
    z-index: 2;
}
.portfolio-title {
    font-size: var(--font-size-title);
    font-weight: 600;
    margin: 0 0 2px 0;
    color: #fff;
    letter-spacing: 0.5px;
    text-shadow: 0 2px 8px rgba(0,0,0,0.55);
    pointer-events: none;
}
.portfolio-category {
    color: #e0e0e0;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 0 0 10px 0;
    pointer-events: none;
}

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

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

body {
    font-family: var(--font-family);
    background: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: var(--font-size-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Header */
header {
    background: var(--bg-dark);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    box-shadow: var(--shadow-light);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    height: 100%;
}

.logo {
    color: var(--text-white);
    font-size: var(--font-size-title);
    font-weight: 300;
    text-decoration: none;
    letter-spacing: 2px;
    transition: opacity var(--transition-fast);
}

.logo:hover {
    opacity: 0.8;
}

nav {
    display: flex;
    gap: var(--spacing-xxl);
}

nav a {
    color: var(--text-white);
    text-decoration: none;
    font-weight: 300;
    font-size: var(--font-size-base);
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color var(--transition-fast);
    position: relative;
}

nav a:hover {
    color: #ccc;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--text-white);
    transition: width var(--transition-medium);
}

nav a:hover::after {
    width: 100%;
}

/* Main content */
main {
    margin-top: var(--header-height);
    min-height: calc(100vh - var(--header-height));
}

/* Hero section */
/* Bandeau portfolio plus compact */
.hero-section {
    padding: var(--spacing-xl) 0 var(--spacing-lg) 0;
    text-align: center;
    background: var(--bg-light);
}

.hero-title {
    font-size: var(--font-size-big);
    font-weight: 300;
    margin-bottom: var(--spacing-lg);
    letter-spacing: 3px;
}

.hero-subtitle {
    font-size: var(--font-size-large);
    color: var(--text-secondary);
    font-weight: 300;
}

/* Portfolio Grid */

.portfolio-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px 0 64px 0;
    background: #fff;
}


/* Nouvelle grille masonry responsive */

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 18px;
    margin-top: 0;
    align-items: stretch;
}


.portfolio-item {
    background: none;
    border-radius: 0;
    box-shadow: none;
    overflow: hidden;
    transition: transform 0.25s;
    cursor: pointer;
    position: relative;
    aspect-ratio: 1/1;
    min-height: 0;
    display: flex;
    align-items: stretch;
}


.portfolio-item:hover .portfolio-image {
    transform: scale(1.08);
    filter: brightness(0.85);
}


.portfolio-image-container {
    width: 100%;
    height: 100%;
    overflow: hidden;
    position: relative;
    background: #f8f8f8;
    display: flex;
    align-items: stretch;
}


.portfolio-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s, filter 0.3s;
    display: block;
}




/* Overlay blanc pour la lisibilité du texte */
.portfolio-content {
    background: linear-gradient(0deg,rgba(255,255,255,0.92) 90%,rgba(255,255,255,0.0) 100%);
    color: #222 !important;
    opacity: 1;
    min-height: 70px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-end;
    pointer-events: none;
    transition: opacity 0.2s;
    z-index: 2;

.portfolio-item:hover .portfolio-content {
    opacity: 1;
}


/* Titre noir sur overlay blanc */
.portfolio-title {
    font-size: var(--font-size-title);
    font-weight: 700;
    margin: 0 0 2px 0;
    color: #222 !important;
    letter-spacing: 0.5px;
    text-shadow: 0 2px 12px rgba(255,255,255,0.85), 0 1px 0 #fff;
    pointer-events: none;
}


/* Catégorie noir sur overlay blanc */
.portfolio-category {
    color: #222 !important;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 0 0 10px 0;
    pointer-events: none;
    text-shadow: 0 2px 8px rgba(255,255,255,0.7);
}

.portfolio-item {
    background: var(--bg-white);
    overflow: hidden;
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
    cursor: pointer;
    border-radius: 0;
}

.portfolio-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-heavy);
}

.portfolio-image-container {
    overflow: hidden;
    height: 400px;
}

.portfolio-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-medium);
}

.portfolio-item:hover .portfolio-image {
    transform: scale(1.05);
}

.portfolio-content {
    padding: var(--spacing-lg) var(--spacing-lg) 18px var(--spacing-lg);
}

}


}

/* Section About */
.about-section {
    background: var(--bg-light);
    padding: calc(var(--spacing-xxl) * 2) 0;
}

.about-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    text-align: center;
}

.about-title {
    font-size: var(--font-size-big);
    font-weight: 300;
    margin-bottom: var(--spacing-xxl);
}

.about-content {
    font-size: var(--font-size-large);
    line-height: 1.8;
    color: var(--text-secondary);
}

.about-content p {
    margin-bottom: var(--spacing-lg);
}

/* Contact Section */
.contact-section {
    padding: calc(var(--spacing-xxl) * 2) 0;
}

.contact-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.contact-title {
    font-size: var(--font-size-big);
    font-weight: 300;
    text-align: center;
    margin-bottom: var(--spacing-xxl);
}

.contact-form {
    background: var(--bg-white);
    padding: var(--spacing-xxl);
    box-shadow: var(--shadow-light);
    border-radius: 0;
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 14px;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    background: var(--bg-white);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-fast);
    border-radius: 0;
}

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

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

/* Boutons */
.btn {
    background: var(--primary-color);
    color: var(--text-white);
    border: none;
    padding: var(--spacing-md) var(--spacing-xxl);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: background var(--transition-fast);
    border-radius: 0;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    border-radius: 0;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

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

.btn-submit {
    width: 100%;
}

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

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

/* Messages */
.message {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    border-radius: 0;
    text-align: center;
}

.message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Footer */
footer {
    background: var(--bg-dark);
    color: var(--text-white);
    text-align: center;
    padding: var(--spacing-xl) 0;
    font-size: 14px;
}

/* Detail page */
.detail-container {
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: var(--spacing-xxl);
}

.detail-header {
    text-align: center;
    margin-bottom: var(--spacing-xxl);
}

.detail-title {
    font-size: var(--font-size-big);
    font-weight: 300;
    margin-bottom: var(--spacing-sm);
}

.detail-category {
    color: var(--text-secondary);
    font-size: var(--font-size-large);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.detail-description {
    max-width: 600px;
    margin: var(--spacing-lg) auto;
    color: var(--text-secondary);
    line-height: 1.8;
}

.detail-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xxl);
}

.detail-image {
    width: 100%;
    height: auto;
    transition: transform var(--transition-medium);
    cursor: pointer;
}

.detail-image:hover {
    transform: scale(1.02);
}

/* Admin styles */
.admin-container {
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: var(--spacing-xxl);
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xxl);
}

.admin-actions {
    display: flex;
    gap: var(--spacing-md);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-white);
    box-shadow: var(--shadow-light);
}

.data-table th,
.data-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}

.data-table th {
    background: var(--bg-light);
    font-weight: 500;
    text-transform: uppercase;
    font-size: 14px;
    letter-spacing: 1px;
}

.data-table tr:hover {
    background: var(--bg-lighter);
}

/* Dropdown pour actions */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-button {
    background: var(--secondary-color);
    color: var(--text-white);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    font-size: 14px;
    transition: background var(--transition-fast);
}

.dropdown-button:hover {
    background: var(--secondary-hover);
}

.dropdown-content {
    display: none;
    position: absolute;
    background: var(--bg-white);
    min-width: 150px;
    box-shadow: var(--shadow-medium);
    z-index: 100;
    right: 0;
}

.dropdown.active .dropdown-content {
    display: block;
}

.dropdown-content a {
    color: var(--text-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    text-decoration: none;
    display: block;
    font-size: 14px;
    transition: background var(--transition-fast);
}

.dropdown-content a:hover {
    background: var(--bg-light);
}

/* Responsive */
@media (max-width: 768px) {
    .header-container {
        padding: 0 var(--spacing-lg);
    }
    
    nav {
        gap: var(--spacing-lg);
    }
    
    nav a {
        font-size: 14px;
    }
    
    .hero-title {
        font-size: 28px;
        letter-spacing: 2px;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .portfolio-container,
    .detail-container,
    .admin-container {
        padding: var(--spacing-lg);
    }
    
    .detail-gallery {
        grid-template-columns: 1fr;
    }
    
    .admin-header {
        flex-direction: column;
        gap: var(--spacing-lg);
        align-items: stretch;
    }
    
    .admin-actions {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .contact-form {
        padding: var(--spacing-lg);
    }
    
    .data-table {
        font-size: 14px;
    }
    
    .data-table th,
    .data-table td {
        padding: var(--spacing-sm);
    }
}

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

.portfolio-item {
    animation: fadeIn 0.6s ease forwards;
}

.portfolio-item:nth-child(2) { animation-delay: 0.1s; }
.portfolio-item:nth-child(3) { animation-delay: 0.2s; }
.portfolio-item:nth-child(4) { animation-delay: 0.3s; }