:root{--primary-color: #3498db;--primary-dark: #2980b9;--secondary-color: #95a5a6;--success-color: #2ecc71;--danger-color: #e74c3c;--warning-color: #f1c40f;--text-color: #2c3e50;--bg-color: #f5f7fa;--card-bg: #ffffff;--border-radius: 8px;--shadow: 0 4px 6px rgba(0, 0, 0, .05);--transition: all .3s ease}body{background-color:var(--bg-color);color:var(--text-color);font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif}.app{min-height:100vh;display:flex;flex-direction:column}.header{background:var(--card-bg);padding:1rem 2rem;box-shadow:var(--shadow);display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;z-index:100}.header h1{margin:0;font-size:1.5rem;color:var(--primary-color);font-weight:700}.user-info{display:flex;align-items:center;gap:1rem;font-weight:500}.user-info button{background:transparent;border:1px solid var(--danger-color);color:var(--danger-color);padding:.5rem 1rem;border-radius:var(--border-radius);cursor:pointer;transition:var(--transition);font-weight:600}.user-info button:hover{background:var(--danger-color);color:#fff}.tabs{display:flex;gap:10px;padding:1rem 2rem;background:#fff;border-bottom:1px solid #eee;overflow-x:auto}.tabs button{padding:.75rem 1.5rem;border:none;background:transparent;color:#666;font-weight:600;cursor:pointer;border-radius:var(--border-radius);transition:var(--transition);white-space:nowrap}.tabs button:hover{background:#f0f2f5;color:var(--primary-color)}.tabs button.active{background:var(--primary-color);color:#fff;box-shadow:0 2px 4px #3498db4d}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;padding:20px}.stat-card{background:var(--card-bg);padding:20px;border-radius:12px;box-shadow:var(--shadow);text-align:center;transition:transform .2s;border:1px solid #eee}.stat-card:hover{transform:translateY(-5px)}.stat-card h3{margin:0 0 10px;font-size:.85rem;color:#7f8c8d;text-transform:uppercase;letter-spacing:1px}.stat-card p{margin:0;font-size:1.8rem;font-weight:700;color:var(--text-color)}.filters-bar{display:flex;flex-wrap:wrap;gap:15px;background:var(--card-bg);padding:20px;margin:0 20px 20px;border-radius:12px;box-shadow:var(--shadow);align-items:flex-end}.filter-group{display:flex;flex-direction:column;gap:5px}.filter-group label{font-size:.8rem;color:#666;font-weight:600;margin-left:2px}.filter-control{padding:10px 15px;border:1px solid #e0e0e0;border-radius:8px;font-size:.95rem;background:#f9f9f9;transition:var(--transition);min-width:160px}.filter-control:focus{outline:none;border-color:var(--primary-color);background:#fff;box-shadow:0 0 0 3px #3498db1a}button{cursor:pointer;font-family:inherit}.toggle-btn{padding:10px 20px;border:1px solid #e0e0e0;border-radius:8px;background:#f9f9f9;font-weight:600;color:#666;transition:var(--transition);display:flex;align-items:center;gap:8px;height:42px}.toggle-btn.active{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.toggle-btn:hover:not(.active){background:#e0e0e0}.filters{padding:0 20px 20px;display:flex;gap:10px}.filters button{padding:10px 20px;border:none;border-radius:8px;font-weight:600;transition:var(--transition);background:#fff;border:1px solid #ddd;color:#555;display:flex;align-items:center;gap:8px}.filters button:hover{background:#f5f5f5;border-color:#ccc}.export-btn{background-color:#27ae60!important;color:#fff!important;border:none!important}.export-btn:hover{background-color:#219150!important;transform:translateY(-1px);box-shadow:0 2px 5px #27ae604d}.table-container{background:var(--card-bg);margin:0 20px 20px;border-radius:12px;box-shadow:var(--shadow);overflow:hidden;border:1px solid #eee}table{width:100%;border-collapse:collapse}th{background:#f8f9fa;padding:15px;text-align:left;font-weight:600;color:#444;border-bottom:2px solid #eee;font-size:.9rem;text-transform:uppercase}td{padding:15px;border-bottom:1px solid #eee;color:#555;font-size:.95rem;vertical-align:middle}tr:last-child td{border-bottom:none}tr:hover{background-color:#f8f9fa}.type-badge{padding:6px 12px;border-radius:20px;font-size:.85rem;font-weight:600;display:inline-flex;align-items:center;gap:5px}.type-Vente{background:#e8f5e9;color:#2e7d32}.type-Règlement{background:#e3f2fd;color:#1565c0}.edit-icon{opacity:.5;font-size:.8em}.type-badge:hover .edit-icon{opacity:1}.login-container{height:100vh;display:flex;justify-content:center;align-items:center;background:var(--bg-color)}.login-card{background:#fff;padding:3rem;border-radius:16px;box-shadow:0 10px 25px #0000001a;text-align:center;max-width:400px;width:90%}.login-card h1{color:var(--primary-color);margin-bottom:1rem}.login-card button{background:var(--primary-color);color:#fff;border:none;padding:12px 30px;border-radius:8px;font-size:1.1rem;font-weight:600;margin-top:20px;transition:var(--transition)}.file-preview-modal{position:fixed;top:0;left:0;width:100%;height:100%;background:#000c;display:flex;justify-content:center;align-items:center;z-index:2000}.form-actions button[type=button]{background:#f5f5f5;color:#666;font-size:1.1rem;font-weight:600;margin-top:20px;transition:var(--transition)}.login-card button:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 4px 10px #3498db4d}.loading{display:flex;justify-content:center;align-items:center;padding:40px;color:var(--secondary-color);font-weight:500}@media (max-width: 768px){.header{flex-direction:column;gap:10px;text-align:center}.tabs{padding:10px}.filters-bar{flex-direction:column;align-items:stretch}.filter-control{width:100%}.table-container{overflow-x:auto}}.file-preview-modal{position:fixed;top:0;left:0;width:100%;height:100%;background:#000c;display:flex;justify-content:center;align-items:center;z-index:2100}.file-preview-content{background:#fff;width:90%;max-width:1000px;height:90%;border-radius:12px;display:flex;flex-direction:column;overflow:hidden}.file-preview-header{padding:15px 20px;border-bottom:1px solid #eee;display:flex;justify-content:space-between;align-items:center}.file-preview-header h3{margin:0;font-size:1.1rem;color:#333}.file-preview-actions{display:flex;gap:10px}.file-preview-body{flex:1;background:#f0f0f0;display:flex;justify-content:center;align-items:center;overflow:auto;padding:20px}.preview-image{max-width:100%;max-height:100%;object-fit:contain;box-shadow:0 5px 15px #0003}.file-link{text-decoration:none;color:var(--primary-color);font-size:.9rem;max-width:100%;max-height:100%;object-fit:contain;box-shadow:0 5px 15px #0003}.preview-pdf{width:100%;height:100%;border:none}.close-btn{background:#e74c3c;color:#fff;border:none;padding:8px 16px;border-radius:6px}.download-btn{background:#3498db;color:#fff;padding:8px 16px;border-radius:6px;text-decoration:none;font-weight:600;font-size:.9rem;display:inline-flex;align-items:center}.modal{position:fixed;top:0;left:0;width:100%;height:100%;background:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000}.modal-content{background:#fff;padding:30px;border-radius:12px;width:90%;max-width:500px;box-shadow:0 10px 25px #0003}.modal-content h3{margin-top:0;margin-bottom:20px;color:var(--text-color)}.modal-content form{display:flex;flex-direction:column;gap:15px}.modal-content input{padding:12px;border:1px solid #ddd;border-radius:8px;font-size:1rem}.form-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}.form-actions button[type=submit]{background:var(--primary-color);color:#fff;border:none;padding:10px 20px;border-radius:6px}.form-actions button[type=button]{background:#f5f5f5;color:#666;border:1px solid #ddd;padding:10px 20px;border-radius:6px}.crud-section{padding:20px 0}.section-header{display:flex;justify-content:space-between;align-items:center;padding:0 20px 20px}.section-header h2{margin:0;color:var(--text-color);font-size:1.5rem}.section-header button{background:var(--primary-color);color:#fff;border:none;padding:10px 20px;border-radius:8px;font-weight:600;box-shadow:0 2px 5px #3498db4d;transition:var(--transition)}.section-header button:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 4px 8px #3498db66}.edit-btn{background:#f39c12;color:#fff;border:none;padding:6px 12px;border-radius:6px;font-size:.85rem;font-weight:600;margin-right:5px;transition:var(--transition)}.edit-btn:hover{background:#d35400;transform:translateY(-1px);box-shadow:0 2px 4px #f39c124d}.delete-btn{background:#e74c3c;color:#fff;border:none;padding:6px 12px;border-radius:6px;font-size:.85rem;font-weight:600;transition:var(--transition)}.delete-btn:hover{background:#c0392b;transform:translateY(-1px);box-shadow:0 2px 4px #e74c3c4d}.file-preview-btn{background:#fff;border:1px solid #ddd;color:#555;padding:5px 10px;border-radius:20px;font-size:.85rem;cursor:pointer;transition:var(--transition);display:inline-flex;align-items:center;gap:5px}.file-preview-btn:hover{background:#f0f2f5;border-color:#ccc;color:var(--primary-color);transform:translateY(-1px)}.file-link{text-decoration:none;color:var(--primary-color);font-size:.9rem;display:inline-flex;align-items:center;gap:5px}.file-link:hover{text-decoration:underline}.view-files-btn{background:transparent;border:none;color:#3498db;font-weight:600;cursor:pointer;padding:5px;font-size:.9rem;text-decoration:none;transition:all .2s;display:inline-flex;align-items:center;gap:5px}.view-files-btn:hover{text-decoration:underline;color:#2980b9;background:#3498db1a;border-radius:4px}.view-files-btn:active{transform:translateY(1px)}.file-list-item{border-bottom:1px solid #eee}.file-list-item:last-child{border-bottom:none}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#f5f5f5}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}