html { scrollbar-gutter: stable; }
:root {
    --primary-color: #0596DE;
    --background-color: #F8F9FA;
    --text-color: #1E1E1E;
    --white: #FFFFFF;
    --gray-light: #E9ECEF;
    --gray-dark: #6C757D;
    --success-color: #28A745;
    --danger-color: #DC3545;
    --border-radius: 12px;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --font-family: 'Inter', 'Roboto', sans-serif;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

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

header {
    background: var(--white);
    padding: 15px 0;
    box-shadow: var(--box-shadow);
    margin-bottom: 30px;
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo { font-size: 1.5rem; font-weight: 800; color: var(--primary-color); text-decoration: none; }
.nav-links { display: flex; align-items: center; gap: 20px; }
.nav-links a { font-weight: 600; color: var(--text-color); text-decoration: none; font-size: 0.9rem; }
.btn-logout { background-color: #fee2e2; color: var(--danger-color) !important; padding: 8px 16px; border-radius: 8px; font-weight: 700 !important; }

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    font-weight: 700;
    text-align: center;
    text-decoration: none;
    transition: all 0.2s;
}

.btn-primary { background-color: var(--primary-color); color: var(--white); }
.card { background: var(--white); border-radius: var(--border-radius); padding: 24px; box-shadow: var(--box-shadow); }

/* Catalog Grid */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(225px, 1fr));
    gap: 20px;
}

.product-card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    display: flex;
    flex-direction: column;
}

.product-image-container {
    width: 100%;
    padding-top: 95%;
    position: relative;
    background-color: #fcfcfc;
}

.product-image {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    object-fit: contain;
    padding: 10px;
}

.product-info { padding: 15px; flex-grow: 1; display: flex; flex-direction: column; }
.product-name { font-size: 1.05rem; font-weight: 800; margin-bottom: 8px; line-height: 1.2; }

/* Correction espacement Catégorie / Titre */
.product-category { 
    color: var(--primary-color); 
    font-weight: 700; 
    font-size: 0.7rem; 
    text-transform: uppercase; 
    background: rgba(5, 150, 222, 0.1); 
    padding: 3px 8px; 
    border-radius: 20px; 
    margin-bottom: 10px; 
    display: inline-block; 
}

/* Tables Excel */
.excel-table-container { width: 100%; overflow-x: auto; margin-top: 20px; border-radius: 8px; }
.excel-table { border-collapse: collapse; min-width: 100%; background-color: var(--primary-color); color: white; }
.excel-table th, .excel-table td { border: 1px solid rgba(255, 255, 255, 0.2); padding: 12px; text-align: center; }
.excel-table th { background-color: #047ab3; font-weight: bold; }
.excel-table .user-col { text-align: left; font-weight: bold; background-color: #036b9e; position: sticky; left: 0; z-index: 1; }
.excel-table .total-row td { background-color: #025177 !important; font-weight: bold; }

@media (max-width: 768px) {
    .product-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
    nav { flex-direction: column; gap: 15px; }
    .nav-links { flex-wrap: wrap; justify-content: center; gap: 10px; }
}