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

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --success-color: #27ae60;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --light-bg: #ecf0f1;
    --border-color: #bdc3c7;
    --text-color: #2c3e50;
    --text-light: #7f8c8d;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #f5f6fa;
}

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

/* Header */
header {
    background-color: var(--primary-color);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

header h1 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

/* Navigation */
nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
}

nav a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.3s;
}

nav a:hover,
nav a.active {
    background-color: rgba(255,255,255,0.2);
}

/* Main */
main {
    padding: 2rem 0;
    min-height: calc(100vh - 200px);
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    padding: 1.5rem 0;
    margin-top: 3rem;
}

/* Alerts */
.alert {
    padding: 1rem;
    margin-bottom: 1.5rem;
    border-radius: 4px;
    transition: opacity 0.3s;
}

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

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

/* Boutons */
.btn {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    font-size: 0.95rem;
    transition: all 0.3s;
    text-align: center;
}

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

.btn-primary:hover {
    background-color: #2980b9;
}

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

.btn-success:hover {
    background-color: #229954;
}

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

.btn-danger:hover {
    background-color: #c0392b;
}

.btn-small {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
}

/* Section header */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.section-header h2 {
    color: var(--primary-color);
}

/* Cartes */
.card {
    background: white;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 1.5rem;
}

/* Formulaires */
.form-group {
    margin-bottom: 1.2rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.4rem;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.6rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    font-family: inherit;
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group input[type="file"] {
    border: 1px solid var(--border-color);
    padding: 0.5rem;
    border-radius: 4px;
    width: 100%;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

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

th, td {
    padding: 1rem;
    text-align: left;
}

tbody tr {
    border-bottom: 1px solid var(--light-bg);
}

tbody tr:hover {
    background-color: var(--light-bg);
}

.table-actions {
    display: flex;
    gap: 0.5rem;
}

/* Image preview */
.image-preview {
    max-width: 150px;
    max-height: 150px;
    border-radius: 4px;
}

.image-thumbnail {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 4px;
}

/* Stats */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: bold;
    color: var(--secondary-color);
}

.stat-card .stat-label {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

/* Filtres */
.filters {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 1.5rem;
}

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

.filters .form-group {
    margin-bottom: 0;
    flex: 1;
    min-width: 200px;
}

/* Badge quantité */
.badge {
    display: inline-block;
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 500;
}

.badge-low {
    background-color: #fee;
    color: var(--danger-color);
}

.badge-medium {
    background-color: #ffeaa7;
    color: #d35400;
}

.badge-high {
    background-color: #d4edda;
    color: var(--success-color);
}

/* Empty state */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-light);
}

.empty-state svg {
    width: 80px;
    height: 80px;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* Responsive */
@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }

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

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .filters form {
        flex-direction: column;
    }

    .filters .form-group {
        width: 100%;
    }

    table {
        font-size: 0.9rem;
    }

    th, td {
        padding: 0.7rem;
    }

    nav ul {
        flex-direction: column;
        gap: 0.5rem;
    }
}