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

:root {
    --primary-color: #4a90e2;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --dark-color: #343a40;
    --light-color: #f8f9fa;
    --border-color: #dee2e6;
    --text-color: #212529;
    --text-muted: #6c757d;
    --shadow: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-lg: 0 4px 6px rgba(0,0,0,0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header et Navigation */
header {
    background: white;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
}

.navbar .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    margin: 0;
    padding: 0;
}

.nav-menu li {
    margin: 0;
    padding: 0;
}

.nav-menu a {
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.3s;
    display: block;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
    flex: 1;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 4rem 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, #357abd 100%);
    color: white;
    border-radius: 10px;
    margin-bottom: 3rem;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

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

.feature-card h3 {
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 5px;
    text-decoration: none;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s;
    text-align: center;
}

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

.btn-primary:hover {
    background: #357abd;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

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

.btn-secondary:hover {
    background: #5a6268;
}

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

.btn-danger:hover {
    background: #c82333;
}

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

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Forms */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
}

.login-box {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 400px;
}

.login-box h1 {
    text-align: center;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.login-info {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.login-note {
    text-align: center;
    margin-top: 1rem;
    color: var(--text-muted);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.form-group small {
    display: block;
    margin-top: 0.5rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}

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

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.chat-form {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    max-width: 900px;
    margin: 0 auto;
}

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

.chat-form .form-group:last-child {
    margin-bottom: 0;
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 5px;
    margin-bottom: 1.5rem;
}

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

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

/* Page Header */
.page-header {
    margin-bottom: 2rem;
}

.page-header h1 {
    color: var(--primary-color);
}

/* Filters */
.filters {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.filter-form {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: flex-end;
}

.filter-group {
    flex: 1;
    min-width: 200px;
}

.filter-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.filter-group input,
.filter-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 5px;
}

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

.chat-card {
    background: white;
    border-radius: 10px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.chat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.chat-image {
    position: relative;
    width: 100%;
    height: 250px;
    overflow: hidden;
}

.chat-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.chat-status {
    position: absolute;
    top: 10px;
    right: 10px;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    color: white;
}

.status-disponible {
    background: var(--success-color);
}

.status-réservé {
    background: var(--warning-color);
    color: var(--text-color);
}

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

.chat-info {
    padding: 1.5rem;
}

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

.chat-details {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.chat-description {
    color: var(--text-color);
    line-height: 1.6;
}

/* Admin */
.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.admin-header h1 {
    color: var(--primary-color);
    margin: 0;
    font-size: 2rem;
}

.admin-table-container {
    background: white;
    border-radius: 10px;
    box-shadow: var(--shadow);
    overflow-x: auto;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table thead {
    background: var(--light-color);
}

.admin-table th,
.admin-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.admin-table th {
    font-weight: 600;
    color: var(--text-color);
}

.table-thumbnail {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 5px;
}

.description-cell {
    max-width: 200px;
}

.actions-cell {
    white-space: nowrap;
}

.actions-cell .btn {
    margin-right: 0.5rem;
    margin-bottom: 0.25rem;
}

.actions-cell .btn:last-child {
    margin-right: 0;
}

.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    display: inline-block;
}

.status-badge.status-disponible {
    background: var(--success-color);
    color: white;
}

.status-badge.status-réservé {
    background: var(--warning-color);
    color: var(--text-color);
}

.status-badge.status-adopté {
    background: var(--secondary-color);
    color: white;
}

.current-photo {
    margin-bottom: 1rem;
    text-align: center;
}

.photo-preview {
    max-width: 200px;
    max-height: 200px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    margin-bottom: 0.5rem;
}

.no-results {
    text-align: center;
    padding: 3rem;
    background: white;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.no-results a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.no-results a:hover {
    text-decoration: underline;
}

/* Footer */
footer {
    background: var(--dark-color);
    color: white;
    padding: 2rem 0;
    margin-top: auto;
}

footer .container {
    text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-menu {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 1rem;
        justify-content: center;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .admin-header {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .admin-header h1 {
        font-size: 1.5rem;
    }
    
    .admin-header .btn {
        width: 100%;
        text-align: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .filter-form {
        flex-direction: column;
    }
    
    .chats-grid {
        grid-template-columns: 1fr;
    }
    
    .admin-table {
        font-size: 0.875rem;
    }
    
    .table-thumbnail {
        width: 60px;
        height: 60px;
    }
    
    .admin-table-container {
        overflow-x: scroll;
    }
    
    .actions-cell {
        white-space: normal;
    }
    
    .actions-cell .btn {
        display: block;
        width: 100%;
        margin-bottom: 0.5rem;
    }
}