:root { --primary-color: #0056b3; --success-color: #28a745; --danger-color: #dc3545; --bg-color: #f4f7f6; --text-color: #333; } body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: var(--bg-color); color: var(--text-color); margin: 0; padding: 0; } .container { max-width: 1200px; margin: 0 auto; padding: 20px; } header { background-color: var(--primary-color); color: white; padding: 15px 20px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; } header a { color: white; text-decoration: none; margin-left: 15px; font-weight: 500; } .card { background: white; border-radius: 8px; box-shadow: 0 4px 6px rgba(0,0,0,0.1); padding: 20px; margin-bottom: 20px; } .btn { padding: 10px 15px; border: none; border-radius: 4px; cursor: pointer; color: white; text-decoration: none; display: inline-block; font-size: 14px; transition: opacity 0.2s; } .btn:hover { opacity: 0.9; } .btn-primary { background-color: var(--primary-color); } .btn-success { background-color: var(--success-color); } .btn-danger { background-color: var(--danger-color); } input, select, textarea { width: 100%; padding: 10px; margin: 10px 0; border: 1px solid #ccc; border-radius: 4px; box-sizing: border-box; } .grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; } .room-image { width: 100%; height: 200px; object-fit: cover; border-radius: 8px; } .error-msg { color: var(--danger-color); font-weight: bold; margin-bottom: 10px; background: #f8d7da; padding: 10px; border-radius: 4px; } .table-wrapper { overflow-x: auto; } table { width: 100%; text-align: left; border-collapse: collapse; } th, td { padding: 12px; border-bottom: 1px solid #ddd; } @media (max-width: 600px) { .grid { grid-template-columns: 1fr; } }